Ⅰ.单词拼写
1.This mass ________ (灭绝) is caused by hunting, habitat loss and pollution.
2.What he has done recently is ________ (非法的).
3.We'll take action ________ (立刻) to help him out of trouble.
4.The ________ (物种) are in danger of disappearing in the world.
5.When you get there, you can see there are ________ (海报) advertising the new movie throughout the town.
6.It is reported that rapid economic development threatens animal ________ (栖息地).
7.Last year the number of students who graduated with a driving license reached 200,000, an ________ (平均数) of 40,000 per year.
8.Sorry I'm late. I might have turned off the ________ (闹钟) clock and gone back to sleep again.
9.I can see some ________ (猎人) coming towards us.
10.The heart attacks may directly ________ (危害) people's lives.