Unit 22 课时跟踪练(二) Warmup & Lesson 1 - Language Points

　　一、全练语言点，基稳才能楼高

　　Ⅰ.单词拼写

　　1．They had been trapped (使困住) in the cave for 20 days before rescued.

　　2．This envelope is made from recycled (回收利用) paper.

　　3．There are two nature reserves (保护区) in our province.

　　4．There is no substitute (代替品) for practical experience.

　　5．The scientist corresponds with colleagues in order to learn about matters relevant (有关的) to her own research.

　　6．The hijackers threatened (威胁) to kill one passenger every hour if their demands were not met.

　　7．The murderer was condemned (判刑) to death for what he had done.

　　8．What a coincidence (巧合) that we were in New York at the same time!

　　9．Some economists strongly advocate (主张) the reform of government ownership of industry.

　　10．You mustn't sacrifice (牺牲) environmental protection to promote economic growth.

　　Ⅱ.单句语法填空

　　1．He hurried to the hall, only to_find (find) none was there.

　　2．A number of years have_passed (pass) since we met last.

　　3．The leader of the team advised that the workers (should)_start (start) work at once.

　　4．Because they couldn't find proper wood, they used bamboo as a substitute.

　　5．Our school doesn't advocate students' staying (stay) in the classroom too long. We think they should have time for sports.

　　6．Oil prices have risen by 32 percent since the start of the year, reaching (reach) a record US D|S57.65 a barrel on April 4.

　　7．Given (give) the general state of his health, it may take him a while to recover from the operation.

　　8．-I'm sorry that I didn't work out this problem.

　　-It's beyond our ability.I didn't work it out, either.

　　Ⅲ.选词填空

　　a number of， beyond one's control， look ahead， refer to， in turn， lead to， take action， ahead of

　　1．I think the work can be completed ahead_of time.

　　2．I have consulted a_number_of_law books in the British Museums.

3．After the bell rang, the pupils walked out of the classroom in_turn.