语法练习

1.We won't encourage him to do that ___ he is in good health.

A.even if

B.in case

C.as if

D.when

2.Lying ___ far back in the mountains, the coal had to be hauled from a deep valley.

A.as it is

B.as it did

C.was it

D.did it

3.The accident ___ downtown yesterday resulted from the driver's carelessness.

A.happening

B.happened

C.which had happened

D.which happened

4.The factory has turned out ___.

A.twice more TV sets this year than last year

B.TV sets this year twice as many as last year

C.twice as many TV sets this year as last year

D.TV sets twice more this year than last year

5.She waited at the gate, her hands ___ before her.

A.folding

B.folded

C.were folding

D.were folded

答案详解

1.[A]【解析】关联词。只有A项even if符合题意。in case是“万一”的意思，as if是“仿佛”，when为“当……时候”。句意：即使他身体健康，我们也不会鼓励他去做。

2.[B]【解析】现在分词表示原因的结构。“现在分词+as it does(did)”、“现在分词+as it is(was)”此句相当于：As it lay far back in the mountains...，因而B项正确。句意：因为远在深山里，煤不得不被运出山谷。

3.[D]【解析】定语从句。which happened downtown yesterday作定语修饰主语the accident。句意：昨天在市中心发生的车祸是由于司机的疏忽大意造成的。

4.[C]【解析】比较级。表示倍数twice或者three times的要放在“as...as”的前面。句意：工厂今年生产的电视机是去年生产的两倍。

5.[B]【解析】独立主格结构。名词+现在分词/过去分词，folded在这里表示被动相当于crossed。句意：她站在门口，手交叉在前。