3. 在否定句中，如果表示强调，多在句尾加at all. 例如：

A． I know nothing about it at all.

B.　 He didn’t do his homework at all.

2. 强调用法，只用于肯定句中，用do, does 或did加动词原形。

A． Do be here on time. (千万要准时来呀。)

B． The family did send him to school.

C.　 He does know all about it.

1. 英语中表示强调的有强调句型It is…, that…; It was…that….

强调句型只有两个时态，即 It is 和It was, 后跟被强调部分，然后用 that….

被强调的是句子的主语，宾语和状语。状语可以是副词，介词短语或从句。如果被强调的是人，可以用who. 例句：

A．It was in the morning that he often went to see his friend.

B. It is I who am your close comrade-in-arms.

C. What is it that you want me to do?

36. Did_________ on time make her teacher angry?

A. not to come　　　　　 B. her not to come

C. her not coming　　　 D. not her coming

[附] 强调

35. The boy I considered________ cheated in the exam.

A. being honest　　　　　 B. to be honest

C. was honest　　　　　　 D. that is honest

34. ________ it snow, the crops would grow better.

A. were　 　B. Were to　　 C. Should　 D. Would

33. They want to see how civilized(驯化) the animal can______.

A. experience　　 B. change　 C. develop　 D. become

32. Rather than________ on a crowded bus, he always prefers _______ a bicycle.

A. ride; ride　　　　　 B. riding; ride

C. ride; to ride　　　　 D. to ride; riding

31. Along the paths stood some signs,________ was written / ! Keep Off The Grass! /”

A. on which　 B. in which　 C. which　 D. that

30. It was______ the neighbours saw catch the thief.

A. him that　 B. he that　 C. said that　 D. where