高中英语第一册Unit 2 语言要点
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Unit 2 In the lab
A. Useful expressions:
1.unless if not ; except when
Don’t touch anything unless your teacher tells you to.
2.allow sb. to do sth.
They allowed us to use the lab.
Smoking is not allowed in public.
3.fill … with …
Please fill one bottle with petrol.
She was filled with joy.
4.instead of -- in the place of 代替以…
Instead of doing homework at home, they went swimming.
5.dip … into …
The teacher dipped one finger into the mixture.
6.show vt. --bring to be seen
He showed his ticket at the door.
Show sb. around
7.first of all -- in the first place
First of all, let me say that how glad I am to be here.
8.once conj. --from the moment that一旦…就…
Once allowed, the students will do the experiments themselves.
9.follow vt. -- come or go after / understand
P.E. will be followed by computer studies.
He spoke so fast that I couldn’t follow him.
Following adj. 接着的
10.make / do / carry out an experiment 做实验
11.in the corner ; at the corner;
The lamb stands in the corner of the room.
I met with an old friend at a street corner.
12.mix vi.& vt.混合
Oil and water do not mix.
If you mix some sugar with it, it will not taste too bad.
13.taste vi.& vt. / n. -- test the taste of
The mixture tasted terrible.
14.go (be) on holiday / vacation 去 (在)渡假
They are on holiday in Australia right now.
15.by the side of --close to
The basin is by the side of the cupboard.
16.turn off
Turn off the lights before you leave.
17.finally adv. -- at last
We waited and waited and the train finally arrived.
B. Sentence patterns:
1.make sure +(that) clause
Make sure that the gas is turned off and the door is locked before you leave home.
make sure of sth.
Let me listen again to make sure of my answer.
2.by doing sth. 以…的手段/方法
He lives by selling newspapers.
3.Do what he or she tells you to do.
Do you know what he said?
She gave what she had to the poor children.

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