Unit 5 Meeting your ancestors课时作业

Language points

第一节 单项选择

1._______ you start eating in a healthier way, weight control will become much easier.

A. unless B. Although C. Before D. Once

【考点】考察状语从句连词辨析

【答案】D

【解析】unless除非...；如果...不...；although尽管；before在...之前；once一旦，曾经；句义：一旦你开始以一种健康的方式吃饭，控制体重就会变得更加容易。根据句义可知once表示"一旦"，引导条件状语从句。故D正确。

2. they decide which college to go to, students should research the admission procedures.

A. As B. While C. Until D. Once

〖答案〗D

〖考点〗本题考查连词。

〖解析〗此题重在句意的判断。 "一旦学生们决定了去哪所大学读书, 他们就得研究下办理入学的手续。"A. As当；因为...B. while做连词强调一件事发生时另外一个动作正在进行；C. Until直到...D. Once一旦。因此选D

3. Cathy had quit her job when her son was born _______ she could stay home and raise her family.

A.now that B. as if C. only if D. so that

【考点】考察状语从句连词辨析

【答案】D

【解析】本题中的连词短语now that既然；as if似乎，好像；only if只要...；so that以至于，结果是；句意：当Cathy的儿子出生的时候，Cathy一句辞职了，以至于他可以待在家里抚养孩子。根据句意可知本句中的so that引导的是一个目的状语从句，从句中常常会有其他动词can等。根据句意说明D项正确。

4. One's life has value one brings value to the life of others.