Extinction of Australian Species

题目与答案

1. Recent problems in Australia:

   ·a species of parrot is under threat due to the production of wind energy

   ·several species of 31_____ are at risk because of increased housing

   答案：frog

   原文定位：A further example is provided by the expansion of our cities. Here in Australia, many species of frog are losing their habitat as a direct result of this urban development

   同义替换：「several」↔「many」，「at risk」↔「losing their habitat」，「increased housing」↔「urban development」

2. ·loss of food source due to pesticides is affecting many animals,especially 32_____

   答案：birds

   原文定位：What's more, thanks to the increasing use of pesticides, fewer insects are surviving;Many species depend upon these as a food source, birds in particular, and so their numbers are declining as well

   同义替换：「especially」↔「in particular」

3. ·Production of single crop like 33_____ is harming wildlife

   答案：corn

   原文定位：In fact, when our farmers choose to grow large amounts of one staple crop each year, corn is a perfect example, this often results in the greater need for chemicals and fertilizers, which has a devastating effect on local wildlife

   同义替换：「single」↔「one」，「harming」↔「has a devastating effect on」

4. Attitude to endangered animals:

   ·can be influenced by the 34_____ (e.g. the panda)

   答案：media

   原文定位：Of course, it is easy to get people interested in animals such as the panda. Thanks to the attention it is given in the media, people are very aware of its plight and so are willing to give a great deal of support

   同义替换：「influenced by」↔「given attention in」，「endangered」↔「with plight」

5. ·People are less concerned about smaller animals, e.g. 35_____

   答案：insects

   原文定位：However, it is not so easy to attract sympathy for those essential smaller species such as insects

   同义替换：「animals」↔「species」，「less concerned」↔「not easy to attract sympathy」

6. ·Some animals are ignored because they are viewed:

   a)with 36_____

   答案：fear

   原文定位：There are certain animals that we would prefer to simply ignore for various reasons. Firstly, we might do this because of fear

   同义替换：「viewed with」↔「because of」

7. b)as our 37_____ in terms of food

   c)With disgust

   答案：rival

   原文定位：Another reason might be that we believe that certain animals are rivals when it comes to food

8. Reasons for preventing extinction:

   ·to improve our knowledge of the ecosystem

   ·the ecosystem needs to be 38_____ to be stable

   答案：complex

   原文定位：We now know that the more complex the ecosystem is, the more stable it is

9. ·some types of 39_____ can help to signal environmental problems

   答案：plants

   原文定位：We've also begun to realize that the presence or absence of certain plants can alert us to changes in our environment

   同义替换：「some types of」↔「certain」，「signal」↔「alert us to」

10. ·animals can help in medicine, e.g.:

    a)Improved well-being for people from having a pet

    b)cobwebs help with medical disorders related to 40_____

    答案：blood

    原文定位：The cobwebs they make can be used to assist with certain blood disorders

    同义替换：「related to」↔「certain」，「help」↔「assist」