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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