新概念二册-Lesson 21~24 笔记

Lesson 21 Mad or not

生词短语用法 🏭

key structure 🔑

被动语态和时态结合（复习L10）

 回去看第10课的笔记就行了，很详细

被动语态与情态动词或词组相结合

 写法：can/may/must + be + done

 被动语态搭配情态动词也可以表示一些情绪和态度

 Planes are heard.（飞机被听见）

 Planes can be heard.（飞机可以被听见）

 Planes may be heard.（飞机可能会被听见）

 Planes must be heard.（飞机肯定会被听见）

 这封信必须马上寄出

 The letter must be sent immediately.

 天气不能被人们所控制

 Weather can't be controlled by people.

 这一课出现了一个较难的被动语态，拆解一下，比较难，可以当公式背

 Over a hundred people must have been driven away from their homes by the noise

 因为噪声，超过一百人被迫驱车离开他们的房子

 must have done -> L17讲过表示推测过去 -> must have done + be done = must have been done 这样结合就是推测过去的被动->这句话就是我推测了过去他们因为噪声被迫离开

 我的手机肯定是被偷了

 My cell phone must have been stolen.

 他的钥匙肯定是弄丢了

 His keys must have been lost.

主动语态 vs 被动语态

 没有出现被动语态就是主动，练习一下主动变被动：

 He will repair your watch -> Your watch will be repaired by him.

 They must test this new car -> This new car must be tested by them

 I can’t find my bag, Someone has stolen it. -> I can’t find my bag,it has been stolen.

doing/done 修饰名词（作定语）非谓语动词预习

 doing/done 通常作为谓语出现，不过在本课中有例外，被用作定语修饰名词

 passing planes can be heard night and day. 特指那些飞过的飞机

 I am one of the few people left. 修饰people，被落下的人

 doing修饰名词通常表示主动或正在进行

 passing planes / a waiting car / a developing country / a woman wearing a white coat

 done修饰名词通常表示被动或已完成

 used cars / a deserted car park / wasted time / a car called blue bird

Lesson 22 A glass envelope

生词短语用法 🎲

key structure 🔑

with：

1、介词prep. 用于接名词、代词和doing 凑成介词短语

2、伴随着有…

 常用句型：with + n + 介词短语

 I saw an wallet with 200 dollars in it.

 a bus with 500 people on it

修饰比较级：

 由于比较级天生具有缺陷，就是只能表示“更..”，而无法表示程度或者说幅度

 表示更xx了一点点：a little more

 表示更xx了很多：much / a lot / far more

 表示甚至：even more

Lesson 23 A new house

生词短语用法 ⚙️

key structure 🔑

主要是第一单元的复习，做下填空题吧：

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I __(have) a letter from my sister yesterday. 
She __(live) in Nigeria. In her letter, she __(say) that she __(come) to England next year. 
If she __(come), she __(get) a surprise. 
We now __(live) in a beautiful new house in the country. 
Work on it __(begin) before my sister __(leave). 
The house __(complete) five months ago. 
In my letter, I __(tell) her that she __(can stay) with us. 
The house __(have) many large rooms and there __(be) a lovely garden. 
It __(be) a very modern house, so it __(look) strange to some people.

答案：

I had a letter from my sister yesterday. （一般过去）

She lives in Nigeria. In her letter, she said that she would come to England next year.（1.一般现在 2.一般过去 + 过去将来）

If she comes, she will get a surprise. （if 条件状语从句：主句将来时，从句现在时 ）

We are now living in a beautiful new house in the country. （现在进行）

Work on it had begun before my sister left. （1.过去完成 2.一般过去）

The house was completed five months ago. （过去时+被动语态）

In my letter, I told her that she could stay with us. （间接引语）

The house has many large rooms and there is a lovely garden. （1.一般现在 2. there be 句型）

It is a very modern house, so it looks strange to some people.（一般现在）

There be句型：

There be + n. 表示“有”或者“客观存在”

 There is a lovely garden. 有一个可爱的小花园

There be + n. + 介词短语（最常用）

 There is a girl in the classroom

 There was a book on the table

There be + n. + doing

 There is a girl crying

Lesson 24 It could be worse

生词短语用法 🍔

key structure🔑

本篇主要是复习第一单元，多读并背诵课文.

https://www.youzack.com/ListeningExercise/Episode/1972/?mediaType=audio