[10-20 18:11:12] 来源：http://www.67xuexi.com 高一英语 阅读：85702次
He has been away from school for five weeks.
8.watch/look out （for）注意；留心；提防；当心
Watch out! There is a car coming.小心！汽车来了。
You'll be cheated if you don't watch out.
Watch out for the hole in the road.留神路上的那个坑。
Watch out for the man in a black hat.
9.protect … from sth. （保护）使……免于= protect… against doing 防御
prevent … from doing sth. 阻止（防御）…做…
【联系】stop sb from doing 阻止…做…
We wear sunglasses to protect our eyes from the sun.
= We wear sunglasses to prevent the sun from harming our eyes.
The sheep protected its young against being attacked by the dog.
= The sheep prevented the dog from attacking its young.
The children were stopped from going home.
10.instead of+ n. / pron./ -ing / prep. 取代，代替，不做
【区别】instead adv. 相反，取代，代替，不做
Instead of smiling, some of them made a face.
=Some of them didn’t smile. Instead, they made a face.
Some students go to school by bike instead of on foot.
=Some students don't go to school on foot. They go to school by bike, instead.
Let's play cards instead of watching television.咱们玩纸牌吧，别看电视了。
11.get/be close to 靠近；亲近
【联系】hike/walk/run/sit/stand close to…
（1） close adj. 靠近；接近；亲密；密切
The church is close to the shops.
Are you a close friend of theirs?
（2） close adv. 靠近；接近
He was standing close to the door.
（3） close v. 关上；关闭（不开发）；结束
She closed her eyes. / Her eyes closed. （闭上）
（4 ） closely adv. 紧密地；仔细地；密切地
He got closely in touch with the magazines of today.
The little baby was closely looked after by her.
[比较]
（1） close 与 closely 作副词时，close含具体之意，closely 含抽象之意。
（2） 类似的词组有 high （高） -- highly （高度地），deep （深深地） -- deeply （深入地），wide （很开，宽） -- widely （广泛地），low （低的）-- lowly （低贱的） （作形容词）
12.exercise
1）作可数名词用，“练习，习题；体操，功课，操练”等，常用复数。
We often do some morning exercises/eye exercises.我们经常做早操、眼保健操。
I'm doing my exercises.我在做练习/功课。
You should do more spelling exercises. 你应该做更多的拼写练习。
2）作不可数名词用，“锻炼，运动”。
You are weak because of the lack of exercise.你身体弱是因为缺少锻炼。
Take more exercise,and you will be healthy.多多锻炼，你会健康的。
3）作动词用，“训练，锻炼”。
You must exercise yourself in order to be stronger and healthier.为了更健康更强壮，你必须锻炼自己。
They are exercising troops.他们在练兵。
You don't exercise enough.你锻炼不够。﹝作不及物动词﹞
作动词用还有“履行职责，行使全力”等意思。
You must exercise your own duty.你必须履行你自己的职责。
13.go for a hike/go hiking 去徒步旅行
14.normal n.（U）常态；正常；标准【短语】return/get back to normal恢复正常
Her temperature is above（below）normal.她的体温高于（低于）正常标准。
Things have returned to normal. 事情已恢复常态。
adj. 正常的；正规的；标准的
The normal temperature of the human body 人们的正常温度
normal behaviour （thinking/ views） 正常的行为（思想/观点）
adj.师范类的
Beijing Normal University 北京师范大学
【区别】
（1） regular 规则的；有规律的；经常的
Our heart is beating regularly.我们的心脏是有规律地跳动。
Mr Goodman is a regular customer of ours.古得曼先生是我们的常客。
（2） common普通的；常见的；共有的；共同的【短语】common sense常识
It is common sense to carry an umbrella in case of rain.带上雨伞以防有雨，这是一个常识。
Tom is a common name in Britain. 一个常见的名字。
We have a common interest.我们有着共同爱好。
They have much in common with each other.他们有很多相同之处。
（3） usual 惯常的；惯例的【短语】as usual与平常一样
It's usual for him to go to the office on foot.对他来说，走路上班是经常的事。
He went to school on foot as usual.
（4） ordinary 平凡的；普通的
We are ordinary people. 我们都是凡人。
He is an ordinary worker.他是个普通的工人。
15.fallen trees倒下的树木【区别】falling leaves正在下落的树叶
【联系】boiling water正在开的水；沸水 boiled water（被）烧开的水；开过的水（可能是凉水）
【过去分词作定语】表示完成、被动