I did go there. 我确实去那儿了。 I do miss you. 我确实想你。 5)用于倒装句。例如: Never did I hear of such a thing. 我从未听说过这样的事情。
Only when we begin our college life do we realize the importance of English. 进了大学以后,我们才认识到英语的重要性。
说明: 引导此类倒装句的副词有never, seldom, rarely, little, only, so, well等。 6)用作代动词。例如: ---- Do you like Beijing? --你喜欢北京吗?
---- Yes, I do. --是的,喜欢。(do用作代动词,代替like Beijing.) He knows how to drive a car, doesn't he? 他知道如何开车,对吧? 4. 助动词shall和will的用法
shall和will作为助动词可以与动词原形一起构成一般将来时。 表示单纯的将来时,shall用于第一人称,第二人称只用于问句; will 多用于第二、第三人称,口语中will也可用于第一人称。
I shall study harder at English. 我将更加努力地学习英语。 Shall we be back in time? 我们会即使回来吗? He will go to Shanghai. 他要去上海。
Will you be free tomorrow afternoon? 你明天下午有空吗? 5. 助动词should, would的用法
1)should无词义,只是shall的过去形式,与动词原形构成过去将来时,只用于第一人称,常用于间接引语,表示将,将会。例如:
I telephoned him yesterday to ask what I should do next week. 我昨天给他打电话,问他我下周干什么。
He said he should return, and he did return. 他说过他会回来的,他果然回来了。 She realized that she should have to do most of her farm work before sunshine. 她明白她得在日出之前干完大部分农活。
2) would也无词义,是will的过去形式,与动词原形构成过去将来时,常用于间接引语,表示将,将会。例如:
He said he would come. 他说他要来。
I felt confident that everything would be all right. 我确信一切都会好的。
1. 由情态动词can, may,will ,shall等构成的句子:
变一般疑问句时把 can, may,will ,shall提到句子的前面,句尾用问号即可. 变否定句时直接在can,may,后面加not即可. 例如: 肯定句: She can swim. 一般疑问句: Can she swim?
否定句: She can not swim.
画线提问: 对she提问: Who can swim? 对swim提问: What can she do?
could,might,would,should是can,may,will,shall的过去式,若句子中有以上两词时,变疑问句及否定句方法与(1)相同
2. 由行为动词构成的句子: 需要加助词do或does.
变一般疑问句时把do/does放在句子前面. 变否定句时把don't/doesn't放在动词的前面。 要注意观察动词的形式并对号入座。
一般疑问句和否定句的动词三单式都要变回原型。 play-----do plays-----does 例如:
肯定句: They play football after school. He plays football after school. 一般疑问句: Do they play football after school? Does he play football after school?
否定句: They don't (do not) play football after school. He doesn't play football after school. 划线提问:
对they/he提问: Who plays football after school?
对play football提问: What do they do after school? What does he do after school? 对after school提问: When do they play football? When does he play football? 3. 由have, has构成的现在完成时句子:
变一般疑问句时把have,has提到句子的前面,句尾用问号即可。 变否定句时直接在have,has后面加not即可。 例如:
肯定句:He has read today's newspaper. 一般疑问句: Has he read today's newspaper.? 否定句: He has not read today's newspaper.
画线提问: 对he提问: Who has read today's newspaper? 对today's newspaper提问: What has he did?
had是have和has的过去式,在构成的过去完成时句子中,变一般疑问句时把had提到到句子的前面,句尾用问号即可。变否定句时直接在had后面加not即可
若have,has,had没有出现在完成时的句子中,则当实义动词对待,请参考实义动词的用法。
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· 1. 由情态动词can, may,will ,shall等构成的句子:
· 变一般疑问句时把 can, may,will ,shall提到句子的前面,句尾用问号即可. · 变否定句时直接在can,may,后面加not即可. 例如: · 肯定句: She can swim. · 一般疑问句: Can she swim? · 否定句: She can not swim.
· 画线提问: 对she提问: Who can swim? · 对swim提问: What can she do?
· could,might,would,should是can,may,will,shall的过去式,若句子中有以上两词时,变疑问句及否定句方法与(1)相同。 · 2. 由行为动词构成的句子: