1. Helen was much kinder to her youngest child than she was to the others, ____, of course, made others jealous.
A) who B) that C) what D) which
2.____ is known to the world, Mark Twain is a great American writer.
A)That B) Which C) As D) It
3. The residents, ____ had been damaged by the flood, were given help by the Red Cross.
A)all their homes B) all whose homes C) all of whose homes D) all of their homes
4. Language is a city, to the building of ____ every human being brought a stone.
A)which B) that C) it D) this
5. You will want two trees about ten feet apart, from ____ to suspend your tent.
A)there B) them C) which D) where
语法参考答案
1. D) 题意：海伦对她最小的孩子要比别的孩子好得多，这当然让其他孩子嫉妒了。
解析：本题中which是关系代词，引导一个非限定性定语从句，指代前面整句话的意思。
2. C) 题意：全世界的人都知道马克?吐温是一位伟大的美国作家。
解析：As和which都可引导非限定定语从句，which从句只可放在句中和句末，而as引导的从句可放在句中、句末和句首，故此处只能选as。
3. C) 题意：红十字会给那些居民提供帮助，他们的房子在洪水中被毁。
解析：据题意和句子结构判断中间逗号隔开的部分应为非限定性定语从句，用来解释说明前面的residents，此处所填的先行词用来指代前面的residents。它与homes之间的关系是一种所属关系，故用代词whose。故C正确。
4. A) 题意：语言是一座城市，每一个人都为它的建设增砖添瓦。
解析：根据句子结构和 句义，空格处应为一个引导定语从句的关系代词用来指代先行词a city。又由于是非限定性定语从句，故只能选A。
5. C) 题意：你需要两棵相距十英尺远的树，在树上可悬挂你的帐篷。
解析：此句逗号后的部分用来修饰说明前面的two trees，是个非限定性定语从句，又由于from为介词，故只能选C。由于从句和主句的主语一致，故从句中省略了主语和谓语动词you want。这种形式又可被看作介词+ which +动词不定式短语的结构。若无from，此处可选D。