Unit 2 Great minds 语法
一、 作主语，可以用it代替，it叫形式主语，动词不定式放在后面叫真正主语
1.To learn a foreign Ianguage is not easy. It is not easy to learn a foreign Ianguage.
2.It ' s dangerous to drive very fast.
二、 作表语
My idea is to ring him up at o nee.我的想法是马上给他打电话。
如果主语部分含实义动词do,且作表语的动词又是“do的内容，这时表语不定式的 “to
可以省略。如：All I did was wait here.我能做的就是在这里等。
三、 常可接动词不定式作宾语的动词有： agree（同意），hope希望）,decide（决定），n eed（需要）,
mea n打算）,wish（希望）,fail（失败）,want（想要）,begi n（开始）,would like（想要）
等。
He has decided to go to the eoun tryside.他 已决心去乡下。
四、 疑问词+动词不定式”结构可以作动词know、think、find out等的宾语。
I don ' t know who to as我真不知道该问谁。
五、 疑问词+动词不定式”可以作动词show、teach ask等后面的直接宾语。
She told me where to find the earpho ne.她告诉我什么地方可以找到耳机。
六、 如果宾语太长，可用it作形式宾语，构成主语+谓语+ it +宾语不足语（名词或形容词扮的笔顺） + to do sth结构，谓语动词常为find、think、feel等。
I fou nd it difficult to stop him.我发现拦截他很困难。
七、 动词不定式可以作介词的宾语。
Autu mn harvest is about to start.秋收即将开始。
I ' m worrying about what to do next.我正愁下一步该怎么办。
八、 作定语的动词不定式与被修饰词有动宾关系。
I have a lot of books to read.我有许多书要读。
此时，如果动词不定式动词为不及物动词，后面的介词绝对不能省略。
We had only a cold room to live in.我们只有寒室一间。
九、不定式复合结构作主语时，需注意：
It ' s 形容词 + for / of + sb + to do sth.
当上面的形容词指的是to do sth的性质时，用介词for。
It ' s dangerous for children to swim in the rive孩子在这条河里游泳很危险。（游泳这件事 情危险）
当上面的形容词指的是sb的性质时，用介词of。这些形容词往往修饰人：good, bad, polite,
unkind, kind, ni ce, clever, right, wrong, careful, careless
It was careless of you to do that .你这么做真粗心。（你这个人粗心）
十、动词hear, e, feel, watch, notice, look at, listen to等后面的动词不定式作宾语补足语时不 能带to,即常见的形式为：hear sb do sth等
Many people like to watch others play games.许多人喜欢看别人玩游戏 .
十^一、let, make, have后面的动词不定式作宾语补足语，也不能带to; help后面的动词不定式作 宾语补足语,to可有可无
She let us meet her at the station, but she didn 虎皮兰花图片她让我们去m车站迎接她，辽宁高考卡她没有来.
十二、跟带to的动词不定式作宾语补足语的动词还有 ：ask, beg, leave, like, love, hate, prefer, order, teach, tell, believe, find, know, want, thi nk, un dersta nd, would like等
形式为:ask sb to do sth
Would you like me to visit him? 要不要我拜访他？
I would prefer you not to come tomorrow.我宁愿你明天不要来 .
He ask the driver to stop the motobike.他要那位司机拦下那辆摩托车.
十三、区别下列词组的不同含义：
1like to do sth
like doing sth
2stop to do sth
stop doing sth
3remember to do sth
remember doing sth
4forget to do sth
forget doing sth
十四、It takes sb some time to do sth花费某人一段时间干某事.
It took me half an hour to do my homework yesterday昨 天我花了半小时做回家作业 .
It took Jim an hour and a half to read the boo吉姆花了一个半小时看这本书 .
It took mother one and a half hours to do the houworl母 亲花了一个半小时干家务 .
用汉字表述上面的句型为:It + take +人+ 一段时间+ to do sth.
一段时间形式往往为像这样的例子:fifteen minutes15分钟,an hour一个小时,two days两天, half a mo nth 半个月，清蒸鲍鱼a year and a half一 年半 …等等
十五、不定式的特殊句型 Why not
"Why not +动词原形"表达向某人提出建议，翻译为："为什么不……就在你身旁?""家具店广告语干吗不……?"
例如： Why not take a holiday?干吗不去度假？
练习
根据括号内的动词，用适当的形式填空，空内可能不只填一个词，使句子完整意思正确
1.They usually kites on Sun days. (fly)
2.Look! The dogs after the cat. (run)
3.Miss Gao En glish in our school since she came here. (teach)
4.The class meeti ng last Wedn esday afternoon, (hold)
5.You should let him the work by himlf. (fini sh)
侵蚀拼音
6.Meimei to wash the old woman ' s clothes twice every week. (go)
7.Mr Jia ng us Chin e last term. (teach)
8.My father back from Japa n tomorrow. (come)
9.It ' s ven o ' clock now. The Greens breakfast together. (have)
10.Jim many Chin e songs since he came to Chi na. (lear n)
11.Plea remember the wi ndow whe n you leave the room. (clo)
12.After school some stude nts bega n to do some in the classroom. (clea n)
13.En glish widely in the whole world today. (speak)
动词不定式练习：
一.根据上句意思完成下句，使两句意思相近或相同，每空一词。
1.技术的本质He was so angry that he couldn ' t say anything.
He was too angry anything.
2.I don ' t know when we will have the meeting.
I don ' t know when the meeting.
3.He said he would write a letter.
He said he would have a letter .
4.That you read En glish in the morning is very importa nt.
It is very importa nt you En glish in the morni ng.
5.He was so strong that he could lift the stone.(石头)
He was strong the stone.
6.His father went to Beiji ng for his holiday.
His father went to Beiji ng his holiday.
7.They got up early so that they could get there in time.
They got up early there in time.
8.His brother decided that he would buy the book.
His brother decided the book.
9.He hopes that he can visit the Great Wall.
He hopes the Great Wall.
10.1saw him go into the room.
He was e n into the room.
11.We made him work five hours a day.
He was made five hours a day.
12.Do you want to say anything for yourlf?
Do you have any thi ng for yourlf?
13.We don ' t know what we shall do next.
