雅思练习题 六
- 发布时间: 05 Sep 2019
- 模考人次： 73,310
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模拟考试模式是在电脑上体验真实雅思的最佳选择。
测试信息
- This test includes the Listening, Reading, Writing and Speaking sections.
- It takes about 3 hours to complete (same as the real IELTS test).
- 本测试包括听力、阅读和写作部分。（口语模拟即将到来）
- 完成大约需要2小时45分钟。（与真正的雅思考试时间相同）
有话要说：
It is true that sending a spacecraft to the space bear an enormous cost on taxpayers, while there are number of problems on the Earth, which requires special attention from the government. Therefore, some strongly oppose the idea of launching space missions, and suggest that the funding should be diverted to fixing the ongoing issues on the Earth. Although there might some benefits in sending space shutters to the space; however, I believe that it is worthwhile to invest and resolve problems that the Earth faces, if we want to survive for a long-term.
There is no doubt that space exploring has some positive points, where they can find out other planets that can sustain life, which could be similar to the Earth environment. As it is a fact, that resources on the Earth have been over explored, and, as a result, the shortage in many areas are becoming prevalent. For example, food, water, and pollution to name a few. Therefore, exploring other planets can be an answer to the problems we are enduring on the Earth.
However, the government also cannot neglect their first and foremost responsibility towards its citizens. Many people protest against them spending a large amount of money on sending astronauts on the space to conduct research. While people suffer from hunger, diseases, and other essential life supports on Earth. It is evident that climate changes are having its adverse effects on the farming industry, where it is noted that weather is becoming more unpredictable under these extreme circumstances many farmers facing challenges to produce food in mass quantity. This may result negatively on people long-term health, and if they are under fed then it could also result in the fatality rates to go up more quickly.
To Conclude, it appears that there are some advantages in exploring the space; however, it cannot be at an expense of people lives. As there are number of pressing issues on the Earth, which needs utmost attention of the legislators before they continue in spending public monies on the space explorations.
Since a century ago, many countries have been competing to make records by exploring space. However, traveling to space needs a large amount of money, while many problems on Earth need attention to be solved. Thus, the number of these missions should be decreased. In this case, I personally agree with the statement through this essay the answer will be explained.
First of all, the global warming effects are coming nearly. In the last two decades, unpredictable weather such as snow storms, heatwaves, and cyclones hit many parts of the world. This catastrophe has been giving significant damage to human life, especially poverty and poor countries. For example, the extreme temperature that attacked India in 2021 killed 100 thousand residents. Mostly, the disaster victims died because they do not have proper access to get public health facilities in time, as a result, the late paramedic action makes the death toll in the country, according to the Al Jazeera report.
Moreover, space exploration missions are also contributing to the rise of climate change effects on Earth. Based on Environmental Science Journal in 2019, a space mission produced 5 million metric tons of carbon dioxide from the construction process until it launched. This huge amount of carbon that release into the atmosphere is equal to 50 thousand cars that are used in three days. In other words, it is like burning 100 thousand football fields in the forest. Thus, it makes some countries at the United Unions forum give more attention to this environmental problem.
In conclusion, the huge amount of money spent on space exploration is an ironic issue, while some poverty countries need help to tackle global warming effects. Besides, the large number of carbon that the mission depleted during the work process send a significant negative impact on human life in the future.
The diagram illustrates how the hydroelectricity is produced in hydroelectronic dam.
Overall, it is the process of production of electricity through water dam from the beginning of intake of water and ending up with the output of electricity.
Looking through the cycle, it started with the intake of water from the reservoir, the water will passed along the line of penstock, where the water meets the spinning procedure in the turbine. Once it reached the turbine, it will generate the powerhouse with electricity.
Through the powerhouse, the production of electricity will be made and will be distributed by the long distance power lines to be use by different places. Thus, the water will go back again to the river and the cycle continues.
The diagram illustrate the steps involved in creating hydroelectricity or the electricity which is created from the act of water.
In order to create hydroelectricity, water is collected in reservoir then processed in four stages before it could creates hydroelectricity.
First of all, the water should be collected in a place called reservoir, The reservoir should be on the same place with the machine to turn water movement into hydroelectricity. This place called Hydroelectric Dam. This Hydroelectricity Dam should be able to collect and control a big amout of water to produce a big amount of hydroelectricity.
After the water is collected in the reservoir, the water then go through the intake space to the high tension pipe called penstock. Then, the high tension water will move the turbine which will create the electricity from its movement or we call it as hydroelectricity. Last, the hydroelectricity will be collected in generator inside the powerhouse before distributed to several places using a long distance power lines.
The diagram illustrate the steps involved in creating hydroelectricity or the electricity which is created from the act of water.
In order to create hydroelectricity, water is collected in reservoir then processed in four stages before it could creates hydroelectricity.
First of all, the water should be collected in a place called reservoir, The reservoir should be on the same place with the machine to turn water movement into hydroelectricity. This place called Hydroelectric Dam. This Hydroelectricity Dam should be able to collect and control a big amout of water to produce a big amount of hydroelectricity.
After the water is collected in the reservoir, the water then go through the intake space to the high tension pipe called penstock. Then, the high tension water will move the turbine which will create the electricity from its movement or we call it as hydroelectricity. Last, the hydroelectricity will be collected in generator inside the powerhouse before distributed to several places using a long distance power lines.
Those days some people seem to argue that missions to advance space are too much costly and there are lots of issues on earth which needs attention and the numbers of these thought need to be cut. On the other hand others of the opinion are that this is the best thing to invest heavy amount to explore space and there are many other ideas to solve the earth attentions rather than this. I completely agree with this opinion and think that the goal to explore space are loss of money and there are different issues on earth which should be in first priority.
In the first place, it would be quite true to say that invest a high wage on explore space is useless because of expensive. Use people moneys on for people comfortable. One illustration is that use the money on the earth such as hospital. educations, roads, parks and grounds. Another major advantage seems to be that after little using people cash on the public and make sure that all requirements should be cover and so on remaining amount use for this type of things .For instance on satellites, Planets etc.
To put the issue into perspective the third most important topic seem to be that many problems on earth which required attentions to spend money on that things which is the beauty of country. An example that can be put forward in peoples issues , animals issue, forest issues because of that things the high amount of revenue will generate and in future it will help to use on other things like explore space and planets.
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TASK 1
The process diagram illustrates how hydroelectricity is produced in hydroelectric dams.
Overall, it can be seen that the procedure of producing electricity from moving water involves many steps, beginning with the intake of water and ending up with the supply of the produced electricity.
Looking at the process in more detail, the hydropower plant consists of a pipe, or penstock, linking reservoir to the turbine and opening out in a river, which is an outlet for the falling water. There is a generator in the powerhouse which is combined with the turbine. Lastly, long-distance transmission lines are connected to the generator to supply the produced electricity where required.
In the first step of the process, water flows through the penstock, then pushes against and turns the blades in the turbine. So when the turbine spins, it causes the generator to spin also, and in effect, produces electricity. Finally, transmission lines carry the produced electricity from generator to homes and businesses.
The space exploration is increasing at this time, but due to expensive process and concerning about existing problem in earth seems to be overwhelming, and require immense attention toward this. So, here, we are going to discourse about this in details.
The amount of money expended for research and finding in space is really extravagent, which create tad value compared to the current threats on earth. For example, declining clean water, poor waste management, pandemic disease and many more, and area like this seems to demonstrate that our planet need immediate focus and investment to resolve the problem. However, some of the co-operation like Bill and Malinda foundation does work in preventing the disease, but this is not sufficient to tackle the numerous threat. Henceforth, it need more involvement of the authorities and pass the necessary regulations. Despite this, this alone does not seemed to be sufficient because people has to work on researching the cause and effect, carry over the experiment to find the alternatives, and these task cost considerably large amount of money. If the money spent in space expedition is reduced and spent in confronting the threats on the earth, it would eliminate most of the them.
While it seems that investing money in more number of expedition unravel multifarious information about celestial bodies, it still appears that expending money over the problem on earth, however, outweigh those sort of capricious prospective exploration.
To conclude, issue on the earth call for more attention from everyone, and investment can be done provided that the number of space exploration is reduced.
With the advent of sophisticated technology, nowadays, it is convenient to land on the nearest planets like the moon Venus and Mars. Though latest missile technological innovation made it possible to escape from earth centrifugal force, still there are other significant responsibilities for human to act such as protecting the environment. Personally, I strongly advocate that efforts should be done to improve the living standard and protect the vulnerable species on earth surface.
The most compelling reason to hold this opinion is the individual’s basic demands of survival. Millions of people are starving, homeless and living in an unstable condition. Additionally, children suffering from malnutrition while other affected by natural disaster. Besides, some are in severe threat to be victim of deadly diseases like malaria, HIV and aids. Several African and developing nations acquire assistance on urgent basis to shield humanity from such catastrophic situation. For instance, recent WHO conduct survey at Somalia, where they requested European nations to assist. As fatalities grows due to lack of food and medicines.
Second reason is educating humans and developing awareness at international level. When education sector of a country is improved, consequently it enhances the living standard of dwellers and brings prosperity to the economy of a nation. For example, wealthy states have high literacy rate when compared to the developing ones.
Third reason is the protection of environment, reducing pollution and safeguarding the vulnerable species. Currently, the discovery of pesticides and urea in agricultural sector has brought devastating effect to the population of precious flora and fauna. Moreover, campaign should be launch to aware citizen regarding the beautiful landscape and natural process in order to guard them. Furthermore, scientific community should emphasize on discovering new energy resources besides sending spaceships to outer orbits.
In conclusion, there are enormous sectors and fields that acquire more attention than space mission. To put it starkly, money should be spent wisely in order to elevate the common man life. Therefore, several steps should be taken to improve the overall well-being of community. Hopefully, NASA and other leading space missionary platform will work to eliminate the modern issues of humanity.
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