三、根据首字母提示完成短文，每空一词
What will our world be like if there are no insects?
It might sound nice in the b
1. There would be no bugs or flies at your home. But in fact, we could have really big p
2.
The bad news is that the number of insects k
3 dropping these years. Scientists say it's mostly because of the use of pesticides (农药). They harm the places that insects live in.
What will happen i
4 there are no insects? The results will be terrible because we need insects to pollinate (授粉) crops. They also break down dead plants and animals and turn them into new u
5 things. We need them to keep the soil healthy. W
6 insects, many animals would have nothing to eat. Then they would be h
7.
How can we help? The first step is to let more people understand the i
8 of the natural world. The best place to start is with our c
9. We should teach them how to protect the environment at an early a
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