Ⅰ.单词拼写
根据汉语或首字母提示，写出下列单词。
1．This poses(引起)a threat to agriculture(农业)and the food chain，and consequently to human health.
2．They own 200 acres(英亩) of farmland.
3．Insert(插入) our fingers between the layers and press them apart.
4．First，they damage the land by killing the helpful bacteria and pests(害虫) as well as the harmful ones.
5．Who was responsible for the disappearance of the rainforest(雨林)?
6．Since I moved to London last year，I have been working in an allnight fastfood chain．
7．The captain sailed his ship through the narrow channel.
8．Besides，we are just students，and we have no incomes of our own.
9．Two of history's worst natural catastrophes occurred in 1970.
10．China is a country rich in natural resources．
