③ provide some exercises for students to check their understanding.

1. balance n. 天平；平衡；结余，余额;

v.平衡；权衡

(1)Translate the following sentences into Chinese:

①Can you balance yourself on the skateboard?

②If you earn $100 and spend $60, your balance is $40.

③You have to balance the advantages of living in the country against the disadvantages.

Suggested answers：

①你能在滑板上保持平衡吗?

②如果你挣100美元，花60美元，那么你就会结余40美元。

③你得权衡一下住在乡下的好处和坏处。

(2)Fill in the blanks with the help out their Chinese translations

①The two trucks had wheels out of balance on delivery.

这两部卡车在交货时车轮失去了平衡。

(3)Multiple choice

In education there should be a good ________ among the branches of knowledge that contribute to effective thinking and wise judgment.

A. distribution B. balance C. combination D. assignment (B)

2. lie vi.& n.说谎；谎话，谎言(lied，lied，lying)

vi.躺，卧；处于(某一位置)，在于......(lay，lain，lying)

(1)Translate the following sentences into Chinese:

①It will be against my principle to lie to you about this.

②He tried to cover his mistakes with a lie, but failed.

③She felt sick and go to lie down in her cabin.

④West of the lake lies the famous city.

⑤I'd rather use my money than leave it lying in the bank.

Suggested answers:

①在这件事上对你说谎是违背我的原则的。

②他尝试用一个谎言掩盖自己的错误，但是没有得逞。

③她感到有些恶心，就回她的舱房去躺下休息了。

④那个著名的城市坐落在湖的西面。

⑤我宁愿把钱花掉也不愿搁在银行里不用。

(2)Comparison-see whether students are able to tell the differences between "lie" and "lay"

单词 词性和含义 过去式、过去分词和现在分词形式 lie vi & n. 撒谎；谎言 lied, lied, lying lie vi. 坐落于...；躺下 lay, lain, lying lay vt. 放置；下蛋 laid, laid, laying

Then check their understanding:

There was an oil painting ________ in the corner. It________ there for several days.

A. laying; had laid B. lain; had laid

C. lying; had lain D. laid; had been lain (C)

3. curiosity n. 好奇心 curious adj. 对...好奇 be curious about sth.

(1)Translate the following sentences into Chinese:

①Children are naturally very curious about the world around them.

②I opened the packet just to satisfy my curiosity.

③Out of curiosity, he went to the library for further information about the spider.

Suggested answers:

①小孩子对他们周围的世界天生地感到好奇。

②我打开包裹只是为了满足我的好奇心。

③出于好奇，他去图书馆找寻更多的关于这种蜘蛛的信息。

4. benefit vt. 有利，有益 n. 好处；利益；优势

(1)Translate the following sentences into Chinese:

①The project will bring great benefit to the local people.

②Your body will benefit a lot from regular exercise.

③Extensive reading is very beneficial to all teenager students.

④It is said Yoga is of great benefit to human health.

⑤I have typed out some of the notes for the benefit of those who were absent.

Suggested answers:

①这项工程会给当地人带来巨大的利益。

②你的身体将从日常的锻炼中获益匪浅。

③广泛的阅读对青少年学生有很大的益处。

④据说瑜伽对人体健康有很大好处。

⑤我帮缺席的那些人打印了一些笔记。

(2)Comparison-compare the differences among the following words:

benefit, interest & profit benefit 为普通用词，指通过正当手段从物质或精神方面得到的任何好处或利益。它的复数形式benefits意为"救济金"。 The insurance company will pay extra cash benefits for the accidents. interest 作"利益"讲时，多用复数形式，既可指集团、群体的利益，又可指个人的利益。interest作不可数名词时，意为"利息"。 eg. It is in the public interests that these facts are made known.

The money was repaid with interest. profit 着重指收益，尤指从物质、钱财等方面获得的利润。 eg. The company made a lot of profit from their new product last year. (3)Practice-multiple choice

We should spend the money on something that will ________ everyone.

A. benefit B. benefit from C. beneficial D. benefit to (A)

5. limit vt. 限制；限定 n. 界限；限度 limited adj. 有限的

(1)Translate the following examples into Chinese:

①The teacher set a time limit for their homework.

②The father has decided to limit the overspending by his son.

Suggested answers:

①老师为他们的作业设定了时限。

②父亲决定限制他儿子的过度花销。

(2)Fill in the blanks according to the Chinese meanings.

One's energy is limited. (一个人的精力是有限的)

There is no limit to (没有止境) what you can do if you try.

6. get away with 被放过；（做坏事）不受惩罚

(1)Translate the following sentences into Chinese:

①If you cheat in the exam, you'll never get away with it.

②I won't have you getting away with cheating in the exam.

Suggested answers:

①考试作弊必予追究。

②我不能容忍你考试作弊而不受惩罚。

(2)Can you think of any other "get phrases" and their meanings?

get across (使)被理解；(把......)讲清楚

get away (from) (从)......脱离，逃脱......

get down to (doing)sth. 开始认真地做某事

get into the habit of... 染上......的习惯

get on/along well with... 与......相处得好；

get through 完成；花光(时间、金钱等)；通过；接通电话

(3)Make a sentence with each of the above phrases.

Suggested answers:

①In order to get the idea across, the speaker explained it again and again.

②No one can get away from being punished once he break the law.

③When mother finish washing the clothes, she went down to cooking dinner.

④It's very important that teenagers should not get into the habit of smoking.

⑤The new comer soon got well with almost every student in the class.

⑥He tried the same number many times but still couldn't get through.

7. before long 不久以后 long before 很久以前，早在...之前

(1)Can you make two sentences with these two phrases?

Possible answers:

①Before long, the man began to recover from the accident.

②Chinese people began to use black powder long before Europeans did.

(2)Can you guess the meaning of the following sentences?

①It wasn't long before he could drive the truck on his own.

②It will be three years before they graduate from high school.

Suggested answers:

①没过多久他就可以自己单独驾驶卡车了。

②还要过三年他们就从高中毕业了。

8. cut down 削减；删节；砍伐

(1)Translate the following examples into Chinese:

①One can lose weight by cutting down the amount of sugar he takes in and exercise at the same time.

Suggested answer:

①一个人可以通过减少糖的摄入量和运动来减肥。

(2)Fill in the blanks with proper "cut phrases".

①Her little finger was cut off (切掉)in an accident at the factory.

②She cut the advertisement out (剪掉)of the newspaper.

③He cut through (穿过)the park and reached there in time.

④I haven't given up drinking but I'm cutting down(减少).

⑤I'm sorry to cut in (插话)on your conversation.

⑥You nearly caused a crash by cutting in (插队)(on me) like that.

Suggested answers:

①cut off ②cut; out ③cut through ④cutting down ⑤cut in ⑥cutting in