新版新目标英语九年级unit13知识点总结

Unit13 We’re trying to save the earth!

Section A

1. try to do =try one’s best to do 努力去做某事

Every student should try to study hard in order to study in a university.

为了进入大学学习，每个学生都应该努力学习。

2. be related to 与…有关

I am not related to him in any way. 我和他无任何关系。

Everyone in this town should play a part in cleaning it up!

3.play a part in在……方面起作用；参与某事

A good diet plays a large part in helping people live longer

健康的饮食在帮助人们长寿方面起着非常大的作用。

4. l itter rubbish garbage waste都可指垃圾不可数名词

rubbish没用的东西(被扔或将要丢弃的无用的东西)不可回收

litter (室内或公共场所)乱扔的废物(纸屑、不要的包装纸、废瓶等) 还可回收garbage 生活中的垃圾，包括厨房里的剩菜剩饭或者不能再用的食物

Waste 任何被丢掉的东西

Throw the rubbish out. 把垃圾扔出去。

The room is full of rubbish. 房间里堆满了垃圾。

Pick up your litter after a picnic. 野餐后将废弃物收拾好。

5.cut down 减少把...砍倒裁短缩减

cut sb sth= cut sth for sb 为某人切某物cut sth into sth 把某物切成某物

cut in 插话超车cut off 切断隔断断绝

6. cost v. 花费；使付出指花费金钱，主语通常是物。过去式和过去分词均为cost The new shirt cost Mr Wang 200 yuan. 王先生花了200元买了新衬衫。

How much does the new computer cost? 新电脑花了多少钱？

take，spend，pay和cost都表示花费但用法各有不同

1) take花费时间，It takes sb. some time to do sth.，it形式主语

It usually takes me 40 minutes to cook the dinner.

2)spend花费时间和金钱，主语通常是人，

sb. spend(s) some time / money on sth.和sb. spend(s) some time / money (in) doing sth. David spent 2,000 yuan on the new machine.

My father spends an hour (in) watching the news on TV every day

3) pay花费金钱，主语通常是人，sb. pay(s) some money for sth.

Tommy paid 20 yuan for his breakfast yesterday.

4)cost花费金钱，主语通常是物，sth. cost(s) (sb.) some money.

The new dress cost Linda 88 yuan.

7. make a difference (to…)表示(对……)产生影响或作用

Do you think his words would make any difference to the final decision?

你认为他的话会对最后的决定产生影响吗？

8. no longer=not…any longer=not…any more 他们侧重的方面不同。

no longer和not…any longer侧重时间

He no longer lives here.= He doesn’t live here any longer.

他不在这儿居住了。(一个时间以前他住在这儿，过了这个时间，他就离开了。)

not…any more侧重程度和数量

You can drink no more. = You can’t drink any more.

你不能再喝了。(喝酒的量到了一定程度，不能再继续下去了。)

9.lead to （道路）等通往，引起（结果等）

lead sb to do sth 致使/诱惑某人做某事lead sb to sp 带领某人去某地

10.be harmful to 对……有害

11. not only…but also…不仅…而且…

1)连接两个表示并列关系成分，强调后者also有时可以省略

She not only plays well, but also writes music. 她不但很会演奏，而且还会作曲。

Not only men but also women were chosen.不仅仅是男的，女的也有被选中的。

2)若连接两个成分作主语，其谓语通常与靠近的主语保持一致（就近原则）。

Not only you but also he has to leave. 不只是你，他也得离开。

3) not only放在句首，后接句子时要用倒装结构。

Not only had the poor man been fined, but also he had been sent to prison.这个可怜的人不仅被罚款，而且还被送进了监狱。

12. at the top of 在……最高地位; 用最高[最大]的(速度, 声音等) at the bottom of

I looked at the top of his head, his hair shiny and parted smoothly.

我看他的头顶, 头发闪亮且平滑的分开。

Section B

1. throw away

1)扔掉，丢弃浪费(机会、优势或好处)

I never throw anything away.我从来不扔任何东西。

2) 错过(机会等)，放过；未能很好利用(机会等)

Don’t throw away this opportunity.不要错过这个机会。

3) 浪费(时间、金钱等)乱花(钱等)