2. 外语
  3. Complete the notes below. Write NO MORE THAN TWO WORDS for each answer. How to kill bad insects Chemical methods These solutions

Complete the notes below. Write NO MORE THAN TWO WORDS for each answer. How to kill bad insects Chemical methods These solutions

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问题 Complete the notes below.
Write NO MORE THAN TWO WORDS for each answer.
How to kill bad insects
Chemical methods
These solutions to insect problems often are not worthwhile because:
a)They are effective on a 【L36】______
b)They can bring harm to 【L37】______
c)Insects become 【L38】______to the chemicals quickly.
Biological methods
These methods are 【L39】______than chemical methods of eliminating insects.
Breeding control
In order to control the breeding of insects, one needs to understand the insects’ 【L40】______
【L40】
选项
答案life cycle
解析 life cycle本题先不要着急写，一定要昕完。control the breeding of insects等信息在原文中虽然出现得比较早，但是要注意听紧贴空格处的内容understand the insects’，然后再回到原文中寻找：It’s clear that we must have an understanding of the life cycle of the insect．所以life cycle才是答案。
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