Ⅰ. 语境语法填空
(Ⅰ)用所给词的适当形式填空
A papermaking factory kept sending waste water into the river, causing heavy 1.pollution (pollute). People who used to swim in it to build up their 2.strength (strong) of muscles wrote a letter of 3.complaint (complain) to the local government. Officials were very much 4.concerned (concern) about the issue and began to investigate. The 5.frightening (frighten) sight shocked them, making them realize that it was wrong to sacrifice environmental 6.protection (protect) to promote economic growth. The factory was shut down eventually.
(Ⅱ)填入一个单词
We must wake up 1.to the fact that trees have a great effect 2.on the environment. Trees take 3.in carbon dioxide and give 4.out oxygen. They conserve water and soil. Therefore, we shouldn't cut 5.down trees as we please. Sandstorms hit Northwest China one after 6.another. Do you know why? That's because this area has suffered 7.from deforestation. 8.In a nutshell, trees are of great significance to us human beings.
