IELTS Mock Test 2021 August
- 发布时间: 20 Aug 2021
- 模考人次： 481,725
正确答案:
Part 1: Question 1 - 13
- 1 C
- 2 G
- 3 A
- 4 I
- 5 agricultural waste
- 6 targets
- 7 coal
- 8 a vast market
- 9 NOT GIVEN
- 10 NOT GIVEN
- 11 NOT GIVEN
- 12 FALSE
- 13 NOT GIVEN
- 1 C
- 2 G
- 3 A
- 4 I
- 5 agricultural waste
- 6 targets
- 7 coal
- 8 a vast market
- 9 NOT GIVEN
- 10 NOT GIVEN
- 11 NOT GIVEN
- 12 FALSE
- 13 NOT GIVEN
Part 2: Question 14 - 26
- 14 D
- 15 H
- 16 E
- 17 B
- 18 22 B,C,F,G,H
- 23 B
- 24 C
- 25 B
- 26 B
- 14 D
- 15 H
- 16 E
- 17 B
- 18 22 B,C,F,G,H
- 23 B
- 24 C
- 25 B
- 26 B
Part 3: Question 27 - 40
- 27 A
- 28 B
- 29 C
- 30 A
- 31 legal problems
- 32 market for e-books
- 33 retailers and publishers
- 34 book world
- 35 manga comic books
- 36 FALSE
- 37 TRUE
- 38 FALSE
- 39 FALSE
- 40 TRUE
- 27 A
- 28 B
- 29 C
- 30 A
- 31 legal problems
- 32 market for e-books
- 33 retailers and publishers
- 34 book world
- 35 manga comic books
- 36 FALSE
- 37 TRUE
- 38 FALSE
- 39 FALSE
- 40 TRUE
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详细试卷答案解析:
Questions 1-4
The text has 9 paragraphs (A – I). Which paragraph contains each of the following pieces of information?
1 Cases where the use of renewable fuels is in competition with non-renewable ones
2 The membership of REN21
3 The rates at which the use of renewable fuels is growing faster than the use of nonrenewable ones in the world
4 The sources of funding for renewable fuels in developing countries
- 1 Answer: C
Q1: Cases where the use of renewable fuels is in competition with non-renewable ones
Martinot and 100-plus researchers in more than 20 countries assessed several renewable technologies: small hydro (meaning small dams), modem biomass (agricultural waste, for example), wind, solar, geothermal, and biofuels such as ethanol and biodiesel. These technologies now compete with conventional fuels in four distinct markets: power generation, hot water and space heating, transportation fuels, and rural (off-grid) energy supplies.
Note:
After skimming, we can find that information of Q1 should be found in paragraph C as:
- paragraph A tells us about the growth of renewable energy.
- paragraph B mainly refers to the fact that renewable energy has become big business.
- paragraph C mentions the assessment of several renewable technologies and non-renewable ones (this is the information we are searching for)
Considering every details in Q1 and in the passage, we can conclude that the answer is C.
- 2 Answer: G
Keywords in Questions
Similar words in Passage
Q2: The membership of REN21
Market leaders in renewable energy in 2004 included Brawl in biofuels, China in solar hot water, Germany in solar electricity, and Spain in wind power, the report said.
Note:
The keyword is REN21.
After scanning, we find that REN21 appears in paragraph A, E, G.
- paragraph A and E doesn't indicate anything relating to the membership of REN21.
- in paragraph G, we can find information about the members of REN21
For that reason, we can conclude that the answer is G
- 3 Answer: A
Keywords in Questions
Similar words in Passage
Q3: The rates at which the use of renewable fuels is growing faster than the use of nonrenewable ones in the world
They (Renewable technologies) are growing at rates of around 20-30 per cent per year, however, compared to two or three per cent for oil and gas.
Note
After skimming, we can guess that clue to answer Q3 should be in paragraph A, as paragraph A is mainly about the growth of renewable energy.
All thing considered, we can conclude that the answer for Q3 is A.
- 4 Answer: I
Keywords in Questions
Similar words in Passage
Q4: The sources of funding for renewable fuels in developing countries
An estimated $500 million goes to developing countries each year as development assistance for renewable energy projects, training, and market support with the German Development Finance Group (GDFG), the World Bank Group, and the Global Environment Facility (GEF) providing the majority of these funds, and dozens of other donors and programmes providing the rest, the report said
Note
We should look for any paragraph referring to developing countries. In this case, it is paragraph E and I. However, the author doesn't say anything about sources of funding in paragraph E.
All thing considered, we can conclude that the answer for Q4 is I.
Questions 5-8
Complete the following sentences using NO MORE THAN THREE WORDS from the text for each gap.
Biomass technology can use 5
Governments with renewable energy policies usually set 6 for renewable energy use.
The most important source of energy for China in 2020 is expected to be 7
Economic expansion and high oil prices mean that Asian countries are 8 for renewable sources of energy.
- 5 Answer: agricultural waste
Keywords in Questions
Similar words in Passage
Q5: Biomass technology can use __________
modem biomass (agricultural waste , for example), wind, solar, geothermal, and biofuels such as ethanol and biodiesel.
Note:
This blank must be fulfilled by a noun, a material of biomass technology.
We will search for the keyword "biomass". "Biomass" appears in paragraph A and C. After carefully reading, we find that the needed information is in paragraph C.
It is stated in paragraph C that modern biomass uses agricultural waste. For that reason, the answer is "agricultural biomass".
- 6 Answer: targets
Keywords in Questions
Similar words in Passage
Q6: Governments with renewable energy policies usually set __________
for renewable energy use.
At least 48 countries now have some type of renewable energy promotion policy, including 14 developing countries. Typically, they include targets to ensure that renewable sources generate 5-30 per cent of energy use in a given country by around 2010-2012.
Note
The words to fill in the blank must be a noun, as it follows the verb "set". This noun is somehow related to renewable energy use.
To answer this question, we will look for paragraphs mentioning about governments or policies. The paragraphs referring to governments include E, G, H, I.
The only paragraphs among 4 above ones indicates about policies is E. In paragraph E, it is stated that governments with renewable energy policies "set targets" for renewable energy use.
For that reason, we can conclude that the answer is "targets".
- 7 Answer: coal
Keywords in Questions
Similar words in Passage
Q7: The most important source of energy for China in 2020 is expected to be __________
The renewable sector’s prospects appeared to receive a further boost Monday, when China announced it was raising its target for reliance on renewable energy even as it acknowledged that coal would remain its primary source for electricity for decades to come .
Note:
This blank should be a noun or an adjective, as it follows "to be".
The keywords here are “China” and “2020”. It's quite obvious that the information needed to answer the question is in paragraph F.
It is stated in paragraph F that coal is expected to be the most important source of energy for China.
For that reason, the answer is "coal".
- 8 Answer: a vast market
Keywords in Questions
Similar words in Passage
Q8: Economic expansion and high oil prices mean that Asian countries are __________
for renewable sources of energy.
Asia is seen as a vast market for renewable energy as it seeks to meet growing demand for power to feed rapid economic expansion amid runaway oil prices.
Note
This blank should be filled with a noun, as it is placed between "are" and "for renewable sources of energy".
The keyword in the question is "Asian countries". Paragraph referring to Asian countries is I.
It is written in the passage that Asian countries are a vast market for renewable energy. Therefore, the answer is "a vast market". Remember to add the determiner "a" to make the answer correct in English Grammar.
Questions 9-13
Do the following statements agree with the information given in Reading Passage 1?
In boxes 9 -13 on your answer sheet, write
| TRUE | if the statement agrees with the information |
| FALSE | if the statement contradicts the information |
| NOT GIVEN | If there is no information on this |
9 Eric Martinot advises large companies on investing in renewable energy.
10 Eric Martinot has over 100 people working in his team.
11 Increases in oil prices hurt developing economies more than developed ones.
12 The use of solar power grew by 60% between the year 2000 and the year 2004.
13 “Green” power consumers only get part of their electricity from alternative energy sources.
- 9 Answer: NOT GIVEN
Keywords in Questions
Similar words in Passage
Q9: Eric Martinot advises large companies on investing in renewable energy.
“Renewable energy has become big business,” said Eric Martinot, lead author of the study, “Renewables 2005: Global Status Report”. Martinot, a senior fellow at the Washington, DC-based think tank Worldwatch Institute and a lecturer at Tsinghua University in Beijing, said renewable energy has attracted some of the world’s largest companies,
Note
The keywords of Q9 are Eric Martinot. Therefore, the needed information is in paragraph B (which mentions about Eric Martinot and his study)
From the passage, we can see that Eric Martinot said something about the growth of renewable energy business and a fact that renewable energy had attracted world's largest companies. However, he didn't advise any enterprise to invest in renewable energy. For that reason, the answer is NOT GIVEN.
Tips: You shouldn't be misled by information like the growth of renewable energy as a business or the fact that large companies had attracted to this field. There is no word referring to advice of Eric in this passage, so the answer TRUE is not correct.
- 10 Answer: NOT GIVEN
Keywords in Questions
Q10:
Eric Martinot has over 100 people working in his team.
Note
Looking at paragraph B in which Eric Martinot and his study is mentioned, we find no clues about the number of people working in his team.
For that reason, the answer is NOT GIVEN.
- 11 Answer: NOT GIVEN
Keywords in Questions
Q11:
Increases in oil prices hurt developing economies more than developed ones.
Note
"Oil prices" is mentioned in paragraph E and I. However, only paragraph E refers to the change in oil prices and its effect.
According to the passage, rising oil prices have hit developing countries but there's no comparison between the effect on developing countries and that on developed ones.
The given answer is NOT GIVEN as the information of Q11 is not confirmed in the passage.
- 12 Answer: FALSE
Keywords in Questions
Similar words in Passage
Q12: The use of solar power grew by 60% between the year 2000 and the year 2004.
grid-connected solar photovoltaic (PV), existing capacity of which blossomed by sixty per cent per year from 2000-2004
Note
Solar power is mentioned in paragraph H.
In the passage, it is stated that the use of solar power grew by 60% per year from 2000 to 2004.
In Q12, the use of solar power grew by 60% in the 4-year period, from 200 to 2004.
For that reason, the answer is FALSE.
- 13 Answer: NOT GIVEN
Keywords in Questions
Similar words in Passage
Q13
“Green” power consumers only get part of their electricity from alternative energy sources.
Note
"Green" power consumers are mentioned in paragraph I. However, there is no clue relating to whether they get part of their electricity from alternative energy sources or not.
For that reason, we can conclude that the answer is NOT GIVEN.
READING PASSAGE 1
You should spend about 20 minutes on Questions 1 -13, which are based on Reading Passage 1 below.
Cleaner, Abundant Fuels Attracting Record Investment
A
Renewable energy captured from the wind, sun, Earth’s heat, tides, and from small dams is drawing record levels of investment as poor villagers and entire nations alike seek clean, abundant ways to fuel economic growth. Global investment in renewable energy set a new record of $30 billion in 2004, according to a new report from the Renewable Energy Policy Network for the 21st Century (REN21). Technologies such as wind, solar, biomass, geothermal, and small hydro now provide 160 gigawatts of electricity generating capacity – about four per cent of the world total – the report said. They are growing at rates of around 20-30 per cent per year, however, compared to two or three per cent for oil and gas.
B
“Renewable energy has become big business,” said Eric Martinot, lead author of the study, “Renewables 2005: Global Status Report”. Martinot, a senior fellow at the Washington, DC-based think tank Worldwatch Institute and a lecturer at Tsinghua University in Beijing, said renewable energy has attracted some of the world’s largest companies, including General Electric, Siemens, Sharp, and Royal Dutch Shell. The report estimated that nearly 40 million households worldwide heat their water with solar collectors, most of them installed in the last five years. Altogether, renewable energy industries provide 1.7 million jobs, most of them skilled and well paid.
C
Martinot and 100-plus researchers in more than 20 countries assessed several renewable technologies: small hydro (meaning small dams), modem biomass (agricultural waste, for example), wind, solar, geothermal, and biofuels such as ethanol and biodiesel. These technologies now compete with conventional fuels in four distinct markets: power generation, hot water and space heating, transportation fuels, and rural (off-grid) energy supplies.
D
Renewable energy is gaining in popularity because it is considered to be in infinite supply – unlike oil, coal, and gas – and because it involves little or no pollution compared to those fossil fuels. Scientists blame the burning of fossil fuels for the release of carbon dioxide and other greenhouse gases that stoke global climate changes, which in turn are intensifying droughts in some parts of the world, floods and storms in others, and the spread of tropical diseases to temperate zones.
E
Additionally, renewable energy could empower millions of poor and vulnerable people who lack access to reliable, affordable, and clean modem energy services, UN Secretary General Kofi Annan said in a message to the Beijing International Renewable Energy Conference, which opened Monday. Annan said that rising oil prices have hit oil-importing developing countries especially hard and underscore the need for alternative energy supplies. According to the REN21 report, government support for renewable energy is growing rapidly. At least 48 countries now have some type of renewable energy promotion policy, including 14 developing countries. Typically, they include targets to ensure that renewable sources generate 5-30 per cent of energy use in a given country by around 2010-2012.
F
The renewable sector’s prospects appeared to receive a further boost Monday, when China announced it was raising its target for reliance on renewable energy even as it acknowledged that coal would remain its primary source for electricity for decades to come. Renewable energy should account for 15 per cent of national consumption by 2020. China had previously aimed to get 10 per cent of its energy from renewable sources by 2020.
G
Mandates for blending biofuels into vehicle fuels have been enacted in 20-plus states and provinces worldwide as well as in three key countries – Brazil, China, and India – the report said. Government leadership has ensured market success, according to REN21, which is composed of representatives of governments and non-governmental organisations. Market leaders in renewable energy in 2004 included Brawl in biofuels, China in solar hot water, Germany in solar electricity, and Spain in wind power, the report said.
H
The fastest growing energy technology in the world is grid-connected solar photovoltaic (PV), existing capacity of which blossomed by sixty per cent per year from 2000-2004, to cover more than 400,000 rooftops in Japan, Germany, and the United States, it found. Wind power came second, with generating capacity growing by 28 per cent last year with almost seventeen gigawatts installed as of 2004. Production of ethanol, biodiesel, and other biofuels exceeded 33 billion litres in 2004, when ethanol displaced about three per cent of the 1,200 billion litres of gasoline produced globally.
I
An estimated $500 million goes to developing countries each year as development assistance for renewable energy projects, training, and market support, with the German Development Finance Group (GDFG), the World Bank Group, and the Global Environment Facility (GEF) providing the majority of these funds, and dozens of other donors and programmes providing the rest, the report said. More than 4.5 million “green” power consumers in Europe, the United States, Canada, Australia, and Japan purchased renewable electricity in 2004, it added. Asia is seen as a vast market for renewable energy as it seeks to meet growing demand for power to feed rapid economic expansion amid runaway oil prices.
-------------------
Great thanks to volunteer Truong Nhat Minh who has contributed these explanations and markings.
If you want to make a better world like this, please contact us.
有话要说：
The pictures shows "A wave energy machine" and two options to install
it whether in large wave or in small waves. However, the machine work
similarly but the cost and output differ i.e larger the cost higher the
output visa vera.
At first the wave engergy machine start work when a hit into the chamber
from the bottom and air from the top after that when wave hit upward from
the bottom pressure goes up which lead to flow of air in the clock wise
direction and goes out from the above exit similarly, beacuse of flow
of air from upward and top plates of turbine move and air compress the
water down from the bottom exit therefore, consiquently turbine work with
pressure generated by water and air of both chambers and produced electricity
Although, the electricity produced is depends upon the location where the
Machine is installed when it is diged down deep into the water in exposer
of larges wave it generated high electricity in term of output and if it
is located near the ground it's obvious small wave are only input to the
machine which lead to produces low amount of power. Nevertheless it also
cost high when it's digged at a distance from ground and less when its
nearer the coast.
In conclusion, turbine works on the pressure generated from both chambers
air, water flow and gernate electricity the higher the flow larger the output
and cost, lower the flow lesser the output and expense.
With the developing technology in today's world, online shopping has become very popular.
While the rapidly growing and developed online shopping sites offer a wide range of opportunities, they also bring people face to face with security problems.
When the positive and negative aspects of online shopping are compared, according to me, the positive aspects outweigh.
The fact that online sites are easily accessible to a wide internet user (especially with the social media), the products that need it even to underdeveloped countries with production problems can be delivered with one click, because there are no high taxes and rental costs, people do not have to buy online because the prices are more affordable, also makes it attractive.
For example, a person living in Africa can buy any product from any country, thanks to big companies such as Amazon and Alibaba.
On the other hand, the fact that scammers and information thieves (hackers) can easily access these sites causes an increase in cybercrimes, and the sale of non-real and poor-quality products on some sites causes people not to prefer online shopping.
According to my experience, a shoe I ordered online did not fit my foot structure, so I tried to return it a few times and try to exchange with a new one. In this process, even though the communication problems I had with the seller and shipping companies had a negative effect on my attitude towards online shopping, the variety of products and reasonable prices made me not give up on online shopping.
As a result, in the age of technology, human beings, who no longer even touch money, will improve themselves in this field and increase the usability and attractiveness of online shopping.
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The diagrams depict the design and location of a wave-energy machine. The design consists of several key components: a buoyant platform tethered to the seabed, an arm connected to the platform's pivot, and an oscillating water column inside the platform. The platform moves with the waves, causing the arm to pivot. This motion drives the oscillating water column, creating an airflow that spins a turbine and generates electricity. This design harnesses wave energy effectively.
The machine is situated offshore, positioned on the seabed near the coastline. It benefits from the proximity to the shoreline where wave activity is high. Placing the machine in this location optimizes its ability to capture the kinetic energy from the waves, converting it into a renewable energy source.
In comparison to other renewable energy methods, this wave-energy machine takes advantage of the constant and predictable nature of ocean waves. Unlike solar or wind energy, which are dependent on weather conditions, waves are more consistent. Additionally, its offshore location minimizes visual impact on the coastline while utilizing the natural power of the ocean.
In conclusion, the wave-energy machine's innovative design and strategic offshore location make it a promising solution for generating renewable energy from ocean waves, contributing to sustainable power generation.
Online shopping has become the favorite way nowadays for people to buy their goods. In the past we would not think of buying clothes, groceries or plane tickets online was a remote idea. With the development of technology this idea came to live.
Buying online saves time, energy and even money, before an owner of an establishment needed to have a place to sell their articles, pay utility bills, taxes for the building and so on, now the same person can run its business from the comfort of their house, give as a consequence a reduction of prices. It saves times, because your purchases are as far as a click, there is no longer lines in the store or asking a sells person to look for your size in the back. All of these helps us to use are energy in more productive activities. It also, in the case of a pandemic, when going outside was not a choice, the online shopping played a very important part in keeping some business open. As well as permiting people to keep their jobs and for others to reduce the chances of being infected at not being exposed to the environment.
As a disadvantage, it reduces social interactions, therefor increases the chances of mental health diseases like depression and anxiety. It has as a disadvantage that you might get scammed or your banking information being stolen. Could be too that there was a mistake in your order or sizing and the shipping is so expensive that you decide to keep the item even if is not of use for you; this is what had happened to me.
Is true that there are some disadvantages to shopping online but i think the advantages outweigh the disadvantages as well if all the measurements for online shopping are taken in place.
.
The implementation of renewable sources of energy its been one of the main ways to decrease the use of fuel and help to stop the problems that cause global warming. Several ideas are used to help this matter and one of them is the wave-energy machine. In the two pictures provided we can see the two ways a wave-energy machine works. In first picture, it shown how a wave-energy machine works. First, the wave reaches the chambers and the air that flows allows a turbine to spin. In consequence the movement of the turbine is the one that generates electricity. Wave-energy machines can be placed in different locations to receive small waves and large waves, being the last one the one that generates high output, having as a disadvantage the high installation costs. Either way, implementing the machine in any of the two locations will help to increase our use of renewable.
https://ieltsonlinetests.com/wot/result/writing-practice-test-1-1143424
please comment my speech.
two above pictures describe how a wave energy machine could work and also the costs and results difference in two different type of wave energy machine.
Renewable energy, which is also called reversible energy, is a type of energy whose production source, unlike non-renewable (fossil) energy, has the ability to be regenerated by nature in a short period of time. In other words, they are resources that can be easily replaced after consumption.
Wave power is produced by the up-and-down motion of floating devices placed on the surface of the ocean. In other words, wind produces waves, and then waves produce energy. As the waves travel across the ocean, high-tech devices capture the natural movements of ocean currents and the flow of swells to generate power.
NOWADAYS, PEOPLE ARE ABLE TO PURCHASE EVERYTHING THROUGH INTERNET. BOOKS, PLANE TICKETS AND GROCERIES ARE ONE CLICK AWAY. THIS BECAME POPULAR ESPECIALLY FOR THOSE PEOPLE LIVING FAR AWAY IN THE CITIES OR DOES NOT HAVE TIME TO PURCHASE SUCH THINGS. WHILE, THIS IS REALLY CONVENIENT, OTHERS THINK THAT THIS HAS CAUSED NEGATIVELY TO PEOPLE. IN THIS ESSAY, WE WILL DISCUSS WHY THERE ARE MANY ADVANTAGES SHOPPING ONLINE THAN ITS DRAWBACKS.
FIRSTLY, INTERNET HAS BEEN ADVANCING RAPIDLY. IN THIS PRESENT TIME, PEOPLE CAN PURCHASE EVERYTHING ONLINE WITH THE HELP OF INTERNET. THIS ALLOWS PEOPLE TO SHOP WITH CONVENIENCE BECAUSE THEY DO NOT NEED TO GO OUT AND BUY THINGS THEY NEEDED PERSONALLY. ALSO, NOT EVERYONE HAS THE ACCESS TO BUY SOMETHING THEY ALL NEEDED DUE TO THEIR LOCATION AND TIME, SO, THEY ORDER EVERYTHING ONLINE NOW. FOR EXAMPLE, THERE ARE PEOPLE WORKING IN GRAVEYARD SHIFT WHICH MEANS MOST OF THE ESTABLISHMENTS ARE NOW CLOSED AND WITH THE HELP OF THE INTERNET, THEY ARE NOW ABLE TO DO GROCERIES ONLINE AND HAVE IT DELIVER BY THE TIME THEY ARE AVAILABLE AT THEIR HOMES. IN ADDITION, DURING PANDEMIC, ONLINE SHOPPING HAS BEEN SO USEFUL TO EVERYONE AROUND THE WORLD SINCE WE DO NOT NEED TO GO OUT AND HAVING THE CHANCE TO GET INFECFTED WITH VIRUS.
ON THE OTHER HAND, PEOPLE BELIEVED THAT THIS DEVELOPMENT IS NOT GOOD BECAUSE THIS IS QUITE ADDICTING TO SOME. THIS CONVENIENCE HAS ITS DISADVANTAGES. FOR INSTANCE, YOUNG PEOPLE HAS NOW ACCESS TO BUY ANYTHING ONLINE AND THIS CAN BE OUT OF CONTROL. BUYING SOMETHING YOU WANT AND YOU OBTAINED IT SO EASILY WITHOUT ANY HASSLE CAN BE SO ADDICTING. THEY WOULD NOT BE ABLE TO STOP BUYING ONLINE AND THIS WOULD CAUSE PROBLEMS FINANCIALLY.
HOWEVER, I THINK PEOPLE ARE CAPABLE OF DISCIPLINE. IF PEOPLE ARE SPENDING THEIR MONEY WISELY, THEN ONLINE SHOPPING IS NOT A BAD THING. I BELIEVE THAT THIS IS NOT THE ONLY REASON WHY YOUNG PEOPLE ARE SPENDING THEIR MONEY ONLINE WITHOUT ANY CONTROL. THERE ARE FACTORS AS WELL, FOR EXAMPLE, A PERSON IS FEELING DOWN BECAUSE OF SOME CIRCUMSTANCES AND TRAINED THEMSELVES SINCE THE BEGINNING THAT THROUGH SHOPPING IS THE ONLY WAY TO DISTRACT THEM, WHICH IS OBVIOUSLY AN UNHEALTHY WAY TO LIFT OUR SPIRITS.
IN CONCLUSION, PROGRESS COMES WITH A PRICE, HOWEVER, PEOPLE ARE CAPABLE TO SPEND THEIR MONEY WISELY THEN BUYING THINGS ON THE INTERNET IS A GOOD OPTION FOR ALL OF US. CITIZENS WHO ARE NOT CAPABLE OF GOING OUTSIDE TO ATTEND SOME ERRANDS BECAUSE OF THEIR DISABILITIES, THEREFORE, SHOPPING ONLINE IS A BIG HELP TO THEM.
https://ieltsonlinetests.com/wot/result/writing-practice-test-1-1114140
In today's world, with the advancement of technology, online shopping is becoming more popular. The vast majority of pupils believe that it opened a new way of getting orders by sitting at home, with one click in a short period of time. I strongly agree with this idea and will explain my opinion through examples.
First and foremost, Shopping through the Internet is easily accessible and we can save a lot of time. For instance, these days, people don’t have free time for purchasing items by visiting the mart, markets, and shopping malls and spent 3 to 4 hours of their day. Pupil just took their mobile phones and open the e-commerce website such as Amazon, Walmart, Daraz, etc. and get their desired products from all over the world within 3 to 4 business days. If we avoid cybercrime in online shopping, then we enhance our sales dramatically and develop customer interest as well
Another reason I agree with the statement is that in corona pandemic, people also get a lot of benefits through web buying. For example, in 2019 majority population of the world was affected by viruses, physical stores were completely shut down and everyone remained inside their houses. Moreover, people also get their food, living items, and groceries through online platforms.
On the contrary, few people think that online purchasing has involved more scammers and provides wrong information to the customer. Such as, I bought a pair of shoes for myself through an e-commerce website, at the site, the picture was well-edited and attracted me to the checkout procedure. Firstly, my package was delayed for two days, when I received the product then it was totally changed in size, I ordered 7 numbers and get 9 numbers which were useless for me. I contacted the manager and request to refund of my money but that was a long procedure. As a result, some people discourage the buying through Internet.
In conclusion, although it is a common perception that people avoid buying items through the Internet, I believe it doesn’t need spare time and also was very effective during pandemics. Personally, I think, we should enjoy the facility of online buying.
This diagram depicts the process of how a wave energy machine works and the installation of the machine at different locations based on its desired output.
As far as the first image is concerned, this is a process of producing electricity through a wave energy machine. It consists of two chambers upper chamber including the turbine and the lower chamber comprises a partition for the water entrance. When the water wave enters through the bottom chamber of the machine then it increases the pressure which moves upward direction through the partition available between the two chambers. This water flow in the upper chamber creates to start the turbine in a clockwise direction. There is also one strainer partition present at the upper chamber which allows the airflow to make pressure in a downward direction which further helps the turbine to move in same direction. Extra pressure is removed through large opening at upper chamber. Electricity generator is attached at left of the upper chamber of the machine to transfer the electricity to grid.
The second image shows how we can get maximum output by installing it at different locations. There are two machines were installed according to the water wave height. The machine on the left side of the picture is encountered with a maximum height of the water and also releases a large amount of water which makes strong hydraulic jumps and produces maximum output. Although it's not economical for small villages or low population. On the other hand, a second machine on the right side of the image is striking with low water wave which producing low output and seems like that it is more economical for small city.
In conclusion, both images are the energy-producing machines to be installed at rivers or canals.