unite4
1.save vt. 拯救；解救
Eg. Let’s do something to save the animals in danger.
The police saved the child from the fire.
【拓展】save “节省、储蓄”
Eg. save money save time
【变形】safe adj. safety n.
2.discuss vt “讨论” 后接名词（短语）或wh-从句及wh-短语
discussion n.
Eg. We discussed the problem.
We will discuss who should do it.
We will discuss what to teach next term.
3.leaf n. “树叶”
复数：leaves
Eg. The fall of one leaf is enough to tell the coming of autumn. 一叶知秋。
The leaves turn green in spring. 变绿
4.help+do = help + to do “帮忙做……”
help+名词+（to） do
“帮（某人）做……”
Eg. I helped (to) wash the car.
I helped him (to) look for his key.
【拓展】help+with…或help+名词+with… “在某方面帮忙”
Eg.Can I help you with your work?
Can you help me with my homework, Mary?
5.fight for… “为……而战”
fight过去式：fought
fight against “与……作斗争”
Eg. He is fighting against his sickness.
They fight for freedom.
6.provide sb. with sth. = provide sth. for sb.
提供给某人……， 为某人提供……
Eg. Sheep provide us with wool. = Sheep provide wool for us.
7.in many ways “在许多方面”
【短语】 by the way 顺便说一下
in a way 在某种程度上
in the way of sb. 妨碍某人
on the way to…在去……的途中
in this way 用这种方法
8.keep “使维持（某种状态）”
keep+名词+形容词
Eg. The noise kept him awake.
keep+名词+副词/介词短语
Eg. Don’t keep the boy outside/ in the room.
keep +名词+doing
Eg. She kept me waiting for half an hour.
9.take in… “接受……， 吸收……”
Eg. The kind man would like to take in the poor boy.
Fish take in oxygen through their gills.
鱼用鳃吸氧气
10.breathe[i:] v. 呼吸
breath[e] n.
11.make 普通用词，指任何东西的制造或制造过程
Eg.He made the desk himself.
produce 正式用词，除表示大量生产制造外，还表示创造
Eg. The tree will produce some blossom next year.
12.in fact 实际上，事实上。用作状语，用于强调或订正前句。
Eg. He doesn’t mind. In fact he is pleased.
13.look around = look round “四下环顾” vt./vi.
Eg. Look around you before crossing the streets.
朝各方向看看
Don’t look around when you study.
学习时，别东张西。
