新概念英语第二册20-04

Lesson 17 Always young

Must 的用法：

Must + 原形--1. = have to "不得不，必须"

2. (对现在的） 推测

对现在的推测： must do

对过去的推测： must have done

在I think, he thinks...的从句中，一定要用事实说话。

（3）...b...

in one's opinion = I think 就某人看来

Special difficulties 难点

（a） As

As a young girl... （介词）“作为”

As I learned,... （代词）“正如”

as I am busy = because 由于

As I was leaving the house... = when "当...时"

Do as you are told. as--方式状语从句的引导词

I work as... "作为...工作"

（b） Dress,suit,Costume:

dress: 裙子，晚礼服，连衣裙（女式）

suit: 套装 （男式）

costume: 演出服，民族服装，某一年代所穿的衣服

（c） Grow, Grow up:

grow: 长

grow up: 生长，成长 （指人）

B. Choose the cottect words in the following sentences:

(1) ...grow...

(2) ...suit...

(3) ...costume...

fancy-dress party: 化妆舞会

hire: 雇，租

(4) ...dress...

Must: 推测； 必须 = have to

Lesson 18 He often does this!

have 的用法：

have dinner,have a cigarette,have coffee, have a holiday, have a good time, have a swim, have a rest

have a pen, have a headache

have做“有，患病”概念时，可作为实义动词，也可作为非实义动词。

疑问句和否定句构成：

实义动词： 通过助动词

非实义动词： 直接加not

have只能作为非实意动词, 如果一个词是以完成时态出现的

have只能作为实意动词

I have a holiday.

I don't have a holiday.

C. 'got','have'

三种情况：

I have a pen. I have got a pen. “有”

I have a headache. I have got a headache. ”得病”

have to