1.高二英语必修五上册知识点总结
He has left for London. 他已去了伦敦。
By the end of last month, they had finished half of their work. 上月未为止，他们已经完成工作的一半。
2)have + been +现在分词，构成完成进行时。例如：
I have been studying English for ten years. 我一直在学英语，已达十年之久。
3)have +been +过去分词，构成完成式被动语态。例如：
English has been taught in China for many years. 中国教英语已经多年。
3.助动词do 的用法
1)构成一般疑问句。例如：
Do you want to pass the CET? 你想通过大学英语测试吗?
Did you study German? 你们学过德语吗?
2)do + not 构成否定句。例如：
I do not want to be criticized. 我不想挨批评。
He doesn't like to study. 他不想学习。
In the past, many students did not know the importance of English.
过去，好多学生不知道英语的重要性。
3) 构成否定祈使句。例如：
Don't go there. 不要去那里。
Don't be so absent-minded. 不要这么心不在焉。
说明： 构成否定祈使句只用do，不用did和does。
4)放在动词原形前，加强该动词的语气。例如：
Do come to my birthday party. 一定来参加我的生日宴会。
I did go there. 我确实去那儿了。
I do miss you. 我确实想你。
2.高二英语必修五上册知识点总结
They are having a meeting. 他们正在开会。
English is becoming more and more important. 英语现在越来越重要。
2) be + 过去分词，构成被动语态。例如：
The window was broken by Tom.. 窗户是汤姆打碎的。
English is taught throughout the world. 世界各地都教英语。
3) be + 动词不定式，可表示下列内容：
a. 表示最近、未来的计划或安排。例如：
He is to go to New York next week.. 他下周要去纽约。
We are to teach the freshmen. 我们要教新生。
说明： 这种用法也可以说成是一种将来时态表达法。
b. 表示命令。例如：
You are to explain this. 对此你要做出解释。
He is to come to the office this afternoon. 要他今天下午来办公室。
c. 征求意见。例如：
How am I to answer him? 我该怎样答复他?
Who is to go there? 谁该去那儿呢?
d. 表示相约、商定。例如：
We are to meet at the school gate at seven tomorrow morning. 我们明天早晨7点在校门口集合。
3.高二英语必修五上册知识点总结
1.避免重复，减少累赘。省略的主要目的是避免重复，去掉不必要的累赘和繁琐。
Mike said that he would come to school to see me the next day, but he didn't come to school to see me the next day.
Mike said that he would come to school to see me the next day, but he didn't.
(省掉最后九个词，句子简洁了许多)
2.连接紧密，结构紧凑 省略也是使上下文紧密连接的一种修辞手段。
John was the winner in 1994 and Bob in 1998.(Bob 后省略了 was the winner，句子结构显得比较紧凑)
3.强调重点，突出信息 省略的另一作用是突出新的信息
Truth speaks too low, hypocrisy too loud.后一分句省略谓语 speaks，突出了 too loud)
4.高二英语必修五上册知识点总结
一、here, there, now, then, thus 等副词置于句首, 谓语动词常用 be, come, go, lie, run。
There goes the bell. 铃声响了。
Then came the chairman. _来了。
Here is your letter. 你的信。
二、否定词置于句首，句子应进行倒装。 neither 放句首
Tod can't swim, neither can I. 托德不会游泳，我也不会。
用于 never, hardly, seldom, scarcely, barely, little, often, at no time, not only, not once, many a time 等词开头的句子。
Never shall I go there again. 我再也不去那了。
Little did he know who the woman was.他基本上不知道那女人是谁。
Seldom was he late for class.他很少上学迟到。
用于 no sooner ... than ..., hardly... when... 和 not until... 的句型中
Hardly had I reached the station when the train left. 我刚到车站,火车就离开了。
No sooner had she gone out than the phone rang. 她刚离开,电话就响了。
Not until the teacher came did he finish his homework. 直到老师来，他才完成作业。
三、用于 only 放句首，修饰副词、介词短语或状语从句的句子。
Only in this way can you master English well. 只有这种方法，你才能学好英语。
Only that time did he do his homework. 直到哪个时间，他才做作业。
Only when he told me did I realize what trouble I was in.
5.高二英语必修五上册知识点总结
1、不定式做主语一般表示具体的某次动作。===动名词doing 表示习惯的，经常的动作。
e.g: To finish the building in a month is difficult.
To do such things is foolish.
To see is to believe. (对等)
注: 1). 不定式作主语时,谓语用单数
2). 当主语较长，谓语较短时，常用it做形式主语，而将不定式放到谓语的后面。
it做形式主语，不定式放在谓语动词之后常用于下列结构中：
(1)It is/was +adj.+of sb. to do…
(2) It is +adj.+for sb.+to do…
It is easy / difficult / hard / foolish / unwise / right / wrong / unnecessary
(3) it is +a +名词+ to do...
It is a pity / a pleasure / a pleasant thing / one’s duty / an honor / a shame / a crime / no easy job… to do
It takes (sb.) some time / courage / patience …to do…
It requires courage / patience / hard work… to do…
_注意: probable 和 possible 均可作表语，但possible可以用不定式作真实主语， 而probable不能用不定式作真实主语。
It is probable for him to come to the meeting.(错)
It is possible for him to come to the meeting.
It is possible / probable that he will come to the meeting.
二、不定式做表语
主语是以aim duty hope idea intention plan job suggestion wish purpose task 等为中心词的名词词组 或以 what 引导的名词性从句表示，后面的不定式说明其内容, 不定式作表语常表示将来或现在的动作或状态。
eg :My idea is to climb the mountain from the north.
Your mistake was not to write that letter.
What I would suggest is to start work at once.
三 、动词不定式作宾语
以不定式结构为宾语的动词有：
ask, agree, care, choose, demand, decide, expect, fail, help, hope, learn, manage, offer, plan, prepare, pretend, promise, refuse, want, wish等只能用动词不定式作宾语
口诀(接不定式作宾语的动词)
想要学习 早打算( want learn plan)
快准备 有希望( prepare hope wish expect)
同意否 供选择(agree offer choose)
决定了 已答应(decide be determined promise)
尽力去 着手做(manage undertake)
别拒绝 别假装(refuse pretend)
失败不是属于你(fail)
e.g.Tom refused to lend me his pen.
We hope to get there before dark.
The girl decided to do it herself.
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