-
Unit13 We're trying to save the
earth!
【重点短语】
1. at the bottom of the river
在河床底部
2. be full of the rubbish
充满了垃圾
3. throw litter into the river
把垃圾扔入河中
4. play a part in cleaning it up
尽一份力把它清理干净
5. land pollution
土地污染
6. fill the air with black smoke
使空气中充满了黑烟
7. cut down air pollution
减少空气污染
8. make a difference
产生影响
17. take action
采取行动
18. turn off
关掉
19. pay for
付费
20. add up
累加
21. use public
transportation
使用公共交通
22. recycle books and paper
回收书和废纸
23. use paper napkins
使用纸巾
24. turn off the shower
关掉喷头
25. ride in cars
开车出行
1.
pay
的基本用法
(1) pay (sb.)
money for sth.
付钱
(
给某人
)
买……
例：
I
have to pay them 20 pounds for this room each
month.
我每个月要付
20
英磅
的房租。
(2)pay for sth.
付……的钱。
例：
I have to pay
for the book lost.
我不得不赔丢失的书款。
(3)pay for sb.
替某人付钱。
例：
Don't worry!
I'll pay for you.
别担心，我会给你付钱的。
(4)pay sb.
付钱给某人。
例：
They pay us every month.
他们每月给我们报酬。
(5)pay money back
还钱。
例：
May I borrow 12 yuan from
you? I'll pay it back next week.
你能借给我<
/p>
12
块钱吗
?
下
周还你。
(6)pay off one's money
还清钱。
2.
2. This method
is not only cruel, but also harmful to the
environment.
这种方法不仅残酷，而且对环境有害。
(1)not
only
…
but also
…意为“
不仅……而且……”用于连接两个表示并列关系的成分，着重强调后者，其中的
also
有
时可以省略。
如：
She not only plays well,
but also writes music.
她不仅很会演奏，而且还会作曲。
He not only writes his own
plays, he also acts in them.
他不仅是自编剧本，
还饰演其中的角色。
He works not only on
weekdays but on Sundays as well.
他不仅平时工作，星期日也工作。
(2)
若连接两个成分作主语，其谓
语通常与靠近的主语保持一致。
如：
Not only you but also he
has to leave.
不只是你，他也得离开。
(3)
若连接两个句子，
not
only
后面的句子要用倒装。
如：
Not only did
he speak more correctly, but he spoke more easily.
他不仅说得更正确，而且讲得更不费劲了。