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IELTS Mock Test 2020 February

IELTS Mock Test 2020 February

3.8
(1,192 votes)
  • Published on: 05 Mar 2020
  • Tests taken: 416,568

Answer Keys:

Part 1: Question 1 - 13
  • 1 C
  • 2 F
  • 3 G
  • 4 B
  • 5 variation/difference
  • 6 futile
  • 7 fertile offspring
  • 8 species inflation
  • 9 FALSE
  • 10 TRUE
  • 11 FALSE
  • 12 NOT GIVEN
  • 13 NOT GIVEN
Part 2: Question 14 - 26
  • 14 F
  • 15 E
  • 16 B
  • 17 C
  • 18 22 A,C,D,G,H
  • 23 A,B
  • 24 A,C
  • 25 A,B
  • 26 A
Part 3: Question 27 - 40
  • 27 B
  • 28 C
  • 29 C
  • 30 A
  • 31 mall
  • 32 intentionally
  • 33 inspired
  • 34 ineffective
  • 35 encourages
  • 36 NOT GIVEN
  • 37 NOT GIVEN
  • 38 FALSE
  • 39 FALSE
  • 40 TRUE

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Tips for improving your ielts score
剑桥雅思18听力原文-TEST2

剑桥雅思18听力原文-TEST2

3.6
(5 votes)
1,799
26 Oct 2023

Review & Explanations:

Part 1: Questions 1-13

Questions 1-4

Questions 5-8

Complete the following sentences using NO MORE THAN TWO WORDS from the text for each gap.

It is difficult to decide exactly when there is enough 5 to say an animal is a new species.

It is 6 to compare the number of species of ant and butterfly.

Generally, animals of the same species can make 7 together.

Some scientists claim that genetics has led to 8 rather than the actual discovery of new species.

  • 5 Answer: variation/difference

    Keywords in Questions

    Similar words in Passage

    Q5:  It is difficult to decide exactly when there is enough ________ to say an animal is a new species.

    So, delineating when enough variation has evolved to justify a new category is largely a matter of taste.

    Note:

    Here we must find a noun or a noun phrase, which is needed to consider an animal as a new species.

    The text above shows us that “variation/difference” is the word that we are looking for. In particular, “delineate” means to describe something. Its rough meaning can be equal to “decide”. Furthermore, “a matter of taste” means something depends on your own opinion. In this context, its rough meaning can be “difficult to tell”. 

    For that reason, the answer is variation/difference (1 word).

  • 6 Answer: futile

    Keywords in Questions

    Similar words in Passage

    Q6: It is ______ to compare the number of species of ant and butterfly.

    Thus, it would be futile - if one were so inclined - to attempt to compare the diversity of ant and butterfly populations.

    Note:

    Here we must find an adjective, which describes the comparison between the number of species of ant and butterfly.

    The text above shows us that “futile” is the word that we are looking for. In particular, “the diversity of ant and butterfly populations” is equal to “the number of species of ant and butterfly”.

    For that reason, the answer is futile (1 word).

  • 7 Answer: fertile offspring

    Keywords in Questions

    Similar words in Passage

    Q7: Generally, animals of the same species can make ____ together.

    The traditional way around the problem is to call a species all members of a group that share the same gene pool. They can mate together and produce fertile offspring.

    Note:

    Here must find a noun or a noun phrase, which is something that animals of the same species can make together.

    The text above shows us that “fertile offspring” are the words that we are looking for. In fact, it is believed that “members of a group that share the same gene pool”, or “animals of the same species”, can mate together and produce fertile offspring.

    For that reason, the answer is fertile offspring (2 words).

  • 8 Answer: species inflation

    Keywords in Questions

    Similar words in Passage

    Q8: Some scientists claim that genetics has led to ___ rather than the actual discovery of new species.

    Upgrading subspecies to species is a strategy which James Mallet, of University College London, likes to call species inflation. It is a common by-product of genetic analysis, which can reveal differences between populations that the eye cannot. 

    Note:

    Here we must find a noun or a noun phrase, which is the result of genetics.

    The text above shows us that “species inflation” are the words that we are looking for. In the passage, species inflation is believed to be the common by-product of genetic analysis. In other words, genetics is believed to cause species inflation.

    In particular, “by-product” is something produced as the result of making something else.

    For that reason, the answer is species inflation (2 words).

Questions 9-13

Reading Passage 1

You should spend about 20 minutes on Questions 1 -13, which are based on Reading Passage 1 below.

Spot the Difference

A. Taxonomic history has been made this week, at least according In the World Wildlife Fund (WWF). a conservation group. Scientists have described a new species of clouded leopard from the tropical forests of Indonesia with spots (or “clouds", as they are poetically known; smaller than those of other clouded leopards, with fur a little darker and with a double as opposed to a "partial double" stripe down its back.

B. However, no previously unknown beast has suddenly leapt out from the forest. In-stead, some scientists have proposed a change in the official taxonomic accounting system of clouded leopards. Where there were four subspecies there will likely now be two species. A genetic analysis and a closer inspection of museum specimens’ coals published in Current Biology has found no relevant difference between three subspecies described 50 years ago from continental Asia and from the Hainan and Taiwan islands. The 5.000-11,000 clouded leopards on Borneo, the 3,000 -7,000 on Sumatra, and the remaining few on the nearby Batu islands can now, the authors say, claim a more elevated distinction as a species.

C. What this actually means is fuzzy and whether it is scientifically important is questionable. In any case, biologists do not agree what species and subspecies are. Creatures are given Latin first and second names (corresponding to a genus and species) according to the convention of Carl von Linné, who was born 300 years ago this May. But Linneaus, as he is more commonly known, thought of species as perfectly discrete units created by God. Darwinism has them as mutable things, generated gradually over time by natural selection. So, delineating when enough variation has evolved to justify a new category is largely a matter of taste.

D. Take ants and butterflies. Ant experts have recently been waging a war against all types of species subdivision. Lepidopterists, on the other hand, cling to the double barrel second names from their discipline’s 19th-century tradition, and categorise many local subclasses within species found over wide areas. Thus, it would be futile - if one were so inclined - to attempt to compare the diversity of ant and butterfly populations.

E. The traditional way around the problem is to call a species all members of a group that share the same gene pool. They can mate together and produce fertile offspring. Whether Indonesian clouded leopards can make cubs with continental ones remains unknown but seems probable. Instead, the claim this week is that genetics and slight differences in fur patterning are enough to justify rebranding the clouded leopard as two significant types. Genetically, that makes sense if many DNA variations correlate perfectly between members of the two groups. The authors did find some correlation, but they looked for it in only three Indonesian animals. A larger sample would have been more difficult.

F. One thing is abundantly clear: conservationists who are trying to stop the destruction of the leopards’ habitat in Borneo and Sumatra see the announcement of a new species of big cat as a means to gain publicity and political capital. Upgrading subspecies to species is a strategy which James Mallet, of University College London, likes to call species inflation. It is a common by-product of genetic analysis, which can reveal differences between populations that the eye cannot. Creating ever more detailed genetic categories means creating smaller and increasingly restricted populations of more species. The trouble is that risks devaluing the importance of the term “species”.

G. The problem of redefining species by genetics is the creation of taxonomic confusion, a potentially serious difficulty for conservationists and others. The recent proposal to add the polar bear to the list of animals protected under America’s Endangered Species Act is an example. That seems all well and good. However, study the genetics and it transpires that polar bears are closer to some brown bears, than some brown hears are to each other. Go by the genes and it seems that the polar bear would not count as a species in its own right (and thus might not enjoy the protection afforded to species) but should be labelled a subspecies of the brown bear.

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