2．祈使句＋and＋陈述句

Don't worry，just follow the stage directions that you have learnt，and say your lines，and you will do fine!

不要担心，只要按照你学习的舞台说明做，说你的台词，你就会做得很好！

3．动名词短语作主语

First of all，laughing out loud helps improve your general fitness.

首先，大笑帮助你提高你的基本身体素质。

4．the next time引导时间状语从句

The next time you feel upset or disappointed，do not worry.下次你感到沮丧或者失望时，不要担心。

重点词汇

1．This is because laughter strengthens the heart and the lungs.这是因为笑能增强心肺功能。

(1)strengthen vt.加强；增强；巩固

(2)strength n．力量；力气；体力；强项；优势

have the strength to do sth. 有做某事的力气

build up one's strength增强实力

strengths and weaknesses优点和缺点

(1)He hasn't enough strength to lift the box.

他没有足够的力气搬起那个箱子。

(2)To make members of a team perform better，the trainer first of all has to know their strengths and weaknesses.

为了让一个队里的成员做得更好，教练首先要了解他们的优势和劣势。

[单项填空]

(3)To his position in the country，he appointed his close friend Henry as head of the troops.

A．strengthen B．sponsor

C．clarify D．switch

答案　A

解析　句意为：为了巩固他在这个国家的地位，他任命他的好朋友亨利作为军队的统领。strengthen加强，巩固；sponsor赞助；clarify澄清，使......清楚；switch转换，转化。