Period Three　Word power & Grammar and usage & Task

重点词汇

This is because laughter strengthens the heart and the lungs.

这是因为笑能增强心肺功能。

(strengthen vt.加强；增强；巩固

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增强体力

strengths and weaknesses优点和缺点

(1)Our friendship has steadily strengthened since the previous years.

从前几年开始，我们的友谊不断增强。

(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。

(3)Mike usually runs every morning to build up his strength.

迈克通常每天早上跑步来强身健体。

(4)He has been brought in to strengthen the defence because of the strength that he is strong and fast.(strong)因为他有身体壮和速度快的长处，所以被请来加强后卫力量。

[单项填空]

(5)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