新概念一直被视为英语学习的经典教材，为了让同学们能够更加全面完善的学习新概念英语第二册，新东方在线英语组专家将帮助同学们一起总结第二册新概念英语课文中的知识点。

Lesson 20

★New words and expressions

☆catch(caught,caught) v.抓到

catch fish：抓鱼;catch thief:抓小偷

记住几个短语：

catch a cold:感冒;catch a bus:赶上车;catch one's breath:屏住呼吸;catch sight of=see;catch fire:着火;catch one's eyes:吸引某人注意力

☆fisherman n.钓鱼人，渔民

[注]不要忘了er哦新概念英语青少版1a

☆boot n.靴子

a pair of boots

☆waste n.浪费

v.You are wasting time.

n.a waste of

It is a waste of time/money/food.

☆realize v.意识到

eg:I realized that I was wrong.

实现：realize one's dream

●本课的重点是-ing形式

☆fish n.鱼：一般情况下作为不可数名词用

eg:I have bought some fish.

在表示种类时为可数名词

eg:There are a lot of fishes in the sea.

v.钓鱼-->n.fishing

主语通常由名词和代词充当。动词+ing就变成名词词性

如:eat->eating;read->reading

☆...without catching anything.

without(prep),介词后面一定要加宾语

同样，动词+ing变为名词做宾语

without doing作为状语而出现，表示结果状语

eg:He went out without saying any words.

Without asking for money,the boy went to school.

without后面的动作由主语来做

☆instead of后面的词一定是没有做的，可以放在主句后面

与without比较：

without强调没有做某事

instead of强调这件事没做成而做成了另外一件事(有“代替”的含义)

翻译成：我原准备做……但是后来做了……

eg:I go to school instead of staying at home.

I bought books instead of buying dresses.

☆v.worry sb:宾语为主语而感到担心

adj.be worried about:主语为宾语而感到担心

☆less+原级

A is less...than B.“不如”

☆after

after+从句(连词)从句的主语必须是主句的主语才能换成下面一种形式

after+名词/动词ing形式

eg:After I go to school,I learned a lot of knowledge.

=After going to school,I learned a lot of knowledge.(主语都是I)

☆give up doing=stop doing:放弃做某事

give up smoking:戒烟

☆be keen on,be fond of,be interested in,enjoy+doing:喜欢

☆be up to,be capable of:胜任

(暂不提供全文)

新概念英语第二册课文对原有教学法进行调整，更利于学生加强交际能力。每课书相对独立，利于同学们自学。

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