不定式主语
1) Its easy to do that.我做这事太容易了
easy, difficult, hard, important, possible, impossible, comfortable, necessary, better; the first, the next, the last,the best, too much, too little,not enough Its so nice to hear your voice.
听到你的声音真高兴。
Its necessary for you to lock the car when you do not use it.
当你不用车的时候,锁车是有必要的。
2) Its very kind of you to help us.
他帮助我们,他真好。
Kind, nice, stupid, rude, clever, foolish, thoughtful, thoughtless, brave, considerate, silly, selfish
例句:
It was silly of us to believe him.
我们真愚蠢,竟然相信了他。
It seemed selfish of him not to give them anything.
他不给他们任何东西,这显得太自私了。
注意:1) 其他系动词如,look,appear等也可用于此句型
2) 不定式作为句子成分时,动词用单数形式。
3) 当不定式作主语的句子中又有一个不定式作表语时,不能用It is to的句型
To see is to believe. 百闻不如一见。
It is to believe to see.
典型例题
Charles Babbage is generally considered ___ the first computer.
A. to invent B. inventing C. to have invented D. having invented
答案:A. 由consider to do sth. 排除B、D。. 此句只说明发明这一个事实,不定式后用原形即可。而C为现在完成时,发明为点动词一般不用完成时,且此处也不强调对现在的影响,因此不选C。
3) to be +形容词
Seem, appear, be said,be supposed, be believed, be thought, be known, be reported, hope, wish, desire, want, plan, expect, mean
The book is believed to be uninteresting.
人们认为这本书没什么意思。
4) there be+不定式
believe, expect, intend, like, love, mean, prefer, want, wish, undrstand
We didnt expect there to be so many people there.我们没料到会有那么多人在哪里。
注意 : 有些动词需用as 短语做补语,如regard, think believe, take, consider.
We regard Tom as our best teacher. 我们认为汤姆是我们最好的老师。
Mary took him as her father . 玛丽把他当作自己的父亲。
去远方寻找最美的秋天:金秋旅行的10个最佳景点
体坛英语资讯:Spain thrash Croatia 6-0 in UEFA Nations League
体坛英语资讯:Chinese striker Wang scores a stunner in debut to help PSG win derby
My Opinion Towards I AM A SINGER 我看《我是歌手》
国内英语资讯:Top legislator stresses Xis thought in advancing peoples congresses system
双语阅读:美、日致力达成自由贸易协定
国际英语资讯:Google to partially lift ban on advertising of cryptocurrency-related business
国内英语资讯:Across China: Onboard the first bullet train from mainland to Hong Kong
国内英语资讯:China Focus: Chinese farmers greet first harvest festival
国内英语资讯:China backs WTO reforms, not creating new organization
My Teacher Quality View 我的教师素质观
国内英语资讯:China, Japan hold political dialogue, pledging to enhance strategic communication
国际英语资讯:Uncertainty demands flexibility in interest rates: Brazils Central Bank
国内英语资讯:Chinese FM says healthy development of China-U.S. relations critical to both sides
体坛英语资讯:Osaka wins US Open to claim Japans first Grand Slam singles title
国际英语资讯:Italy to boost investment in Tunisia to stem illegal immigration
国际英语资讯:U.S. regional non-manufacturing sector continues to expand in September
国内英语资讯:China welcomes improving situation on Korean Peninsula: FM
因贸易战 马云收回为美国新增100万个就业承诺
国际英语资讯:African envoys urge South Sudan to commit to new peace deal
体坛英语资讯:Russias Dina Averina wins first two golds in Rhythmic gymnastics worlds in Sofia
国内英语资讯:Chinese, Turkish FMs meet for closer cooperation
国际英语资讯:Russia, Pakistan sign MoU on gas pipeline from Iran
My Stage 我的舞台
体坛英语资讯:Djokovic beats Del Potro to win third US Open title
国内英语资讯:1st China-Europe Talent Forum opens to boost exchange, cooperation
Whether College Study Is Necessary? 大学学习是否有必要?
国内英语资讯:China opposes provocative actions in South China Sea
报告显示 机器人创造的岗位是替代掉的两倍
体坛英语资讯:Souza strike returns Sao Paulo to top of Brazils Serie A
| 不限 |
| 英语教案 |
| 英语课件 |
| 英语试题 |
| 不限 |
| 不限 |
| 上册 |
| 下册 |
| 不限 |