内容正文:
Unit 4 Looking good, feeling good
Reading
Key words and expressions
1. concentrate vi.& vt.集中(注意力、思想等);全神贯注;聚集
concentrate on (doing) sth. 集中精力于(做)某事
concentration n. 专心,专注;集中
concentrated adj. 全力以赴的;浓缩的
❶Birds concentrate where food is abundant.
鸟聚集在食物丰盛的地方。
❷The company is concentrating on developing new products.
公司正在集中力量开发新产品。
❸I lost my concentration and nearly drove into a bridge.
我(驾车时)走神了,差点撞上一座桥。
❹He made a concentrated effort to finish the work on time.
为了按时完成这项工作,他全力以赴。
即学即练 单句语法填空
①Stress and tiredness often result in a lack of __________ (concentrate).
②I can't concentrate ________ my homework with all that noise going on.
concentration
on
2. concerned adj.担心的,忧虑的;关注的,关切的;有关的
be concerned about/for... 担心……
be concerned that... 担心……
be concerned with... 与……有关;涉及
as far as sb. be concerned 就某人而言
concern n. [U]忧虑,担心 [C]令人担心的事 vt. 使忧虑;使担心
concern yourself with/about sth. 关心某事;担心某事
concerning prep. 关于,有关,涉及
❶Others are concerned about using gardening methods that require less water and fewer fertilizers.
其他人关注需要较少的水和肥料的园艺方法。
❷The film is concerned with unemployment.
这部电影与失业问题有关。
即学即练 单句语法填空
①We have received a letter _________ (concern) your complaint.
②There is now considerable ________ (concerned) for their safety.
③He was ________ (concern) with the crime.
④We are all concerned ________ her safety.
⑤There's no need to concern yourself ________ this matter.
concerning
concern
concerned
for/about
with/about
3. effect n.效果,作用;影响;结果;效应
have an/no/much/little effect on... 对……有/没有/有很大/几乎没有影响
side effect (药物等的)副作用
come into effect 生效;开始实施
bring/put... into effect 使生效;实行
in effect 实际上;事实上
effective adj. 有效的;实际的
ineffective adj. 无效的
effectively adv. 有效地;实际上
❶It's not to say the more sports they do, the better. Unscientific exercise may have opposite effects.
并不是说他们做的运动越多越好。不科学的运动可能会产生相反的效果。
❷One of the effects of this illness is that you may lose your hair.
这种病的影响之一是你可能会脱发。
❸Its effect on the environment is a