高一英语必修一unit4知识点总结
高一英语必修一unit4知识
1. right away毫不迟疑，立刻
2. It seemed as if the world was at an end. 世界似乎到了末日。
从句表示“(在某人)看来好像;似乎”
① It seems/looks/appears as if/though…看起来好像…
② Sb./Sth. looks as if/though…
③ There seems/appears(to be)…
There appears to have been a mistake.
3. Two-thirds
4. Workers built shelters for survivors whose homes had been destroyed.
5. under the weight of 在……重压下，迫于
6. in the open air 在户外，在野外，露天
7. take turns to do sth依次，轮流做某事
in turn 依次地，轮流地
8. be shocked at 对……感到震惊
9. be proud of 以……为自豪
10. express one’s thanks to sb /for sth… 对/因……表示感谢
11. without warning 毫无预兆
12. next to紧接着，相邻，次于
13. get away from… 避免，摆脱，离开
14. disaster-hit areas灾区
15. Listening to English is a very important skill because it is only when we understand what is said to us that we can have a conversation with somebody. 听英语是一项很重要的技能，因为只有当我们懂得别人给我们说什么我们才能与他交谈。
高一英语必修一语法知识
虚拟语气
虚拟语气也是一个难点。所谓虚拟语气是表示说话人的愿望、假设、猜测或建议，而不表示客观存在的事实。它通过句子的谓语动词的特殊形式来表示。现归纳如下：纯假设，用虚拟，动词时态退一级：条件句，分主从，主句谓语前加would (should,could，might);表愿望,用虚拟，wish后面接宾语(从句)：现在过去与将来，动词时态退一级：提建议，用虚拟，宾语(从句)动词用(should)do：俩建议，三要求，再加坚持与命令
(suggest,advise,demand,require,request,insist,order)：It is time和eoukd rather,后接丛句用虚拟：部分主语从句中， 谓语用虚拟结构 (It is necessry
/important/natural/natural/strange/strange that„„should do)。 下面举例说明：
A、If you came tomorrow,we would have the metting. (条件句虚拟)
B、Without air,there would be no living things.(同上)
C、We wish we had arrived there two hours earlier.(表示愿望虚拟)
D、He demanded that we (should)start right away.(表示建议虚拟)
E、It is(high)time that we left (should leave)now.(特殊从句虚拟)
F、I would rather you gave me the book.(同上)
G、It is necessary that we should clean the room everyday，(主语从句虚拟) H、He speaks English so fluently as if he were English. (特殊从句虚拟)
高一英语必修一知识点
一、 it的用法
1.作人称代词
John likes playing Ping pong./ He always does it in the afternoon.(指代上下文提到的事物); /It's time we went home. / How far is it from here to your home ? / It is getting warmer and warmer./ It's very quiet at the moment.(可指时间、天气、环境等)
2.引导词
A.作形式主语，代替由不定式、动名词或从句表示的真正主语。
It's important for us to learn a second language./ It's no use talking to him./ It's known to all that the earth goes round the sun.
B.作形式宾语，代替由不定式、动名词或从句表示的'真正宾语。
We feel it our duty to help others./ He made it clear that he would leave the city.
C.强调结构：It is (was) +被强调部分+that (或who)…
注意：在强调结构中，如被强调部分为时间状语或地点状语，其后的连接词也绝不能为when 或where，而应用that 。在复习中，一定要注意句式的不同。
It was in Shanghai that I bought the guitar.(that引起强调句)
It was Shanghai where I bought the guitar.(where引起定从)
It was twelve o'clock when we arrived there.(when引起时间状语从句)
It was at twelve o'clock that we arrived there.(that 引起强调句)
3. it，one，that 的区别：作为代词，这三个词的对比使用是高考的热点之一。
—Why don't we take a little break? —Didn't we just have __________?
A.it B.that C.one D.this
The Parkers bought a new house but _________will need a lot of work before they can move in.
A.they B.it C.one D.which
