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1. He learned that there are several ____________ (different) between humans and animals.
答案
differences
2. Do you know which country is the ____________ (rich) in the world?
答案
richest
3. We must go green to keep the environment from changing for the ____________ (bad).
答案
worse
4. The boy ____________ (careless) put the cup on the edge (边缘) of the table and it fell off.
答案
carelessly
5. — Can I take a photo of this painting? — Sorry. It’s not ____________ (允许).
答案
allowed
6. We are taking ____________ (步骤) to prevent pollution.
答案
steps
7. Li Ming usually acts ____________ (明智地) when he is in trouble.
答案
wisely
8. This machine is very ____________ (简单) to use.
答案
simple
( ) 1. — We must act now because time is _______. — OK, let’s start.
A. coming out B. giving out C. cutting out D. running out
A. coming out B. giving out C. cutting out D. running out
答案
D
( ) 2. — Now, 3-D printing can be used to _______ a house in less than 24 hours.
— It’s amazing. But I’m not used to _______ in a house like this.
A. build; live B. building; living C. building; live D. build; living
— It’s amazing. But I’m not used to _______ in a house like this.
A. build; live B. building; living C. building; live D. build; living
答案
D
( ) 3. There are many ways to go green. For example, we can save paper _______ using both sides of it.
A. with B. by C. as D. for
A. with B. by C. as D. for
答案
B
( ) 4. Remember to turn off the TV when it is not in _______.
A. time B. use C. place D. fashion
A. time B. use C. place D. fashion
答案
B
( ) 5. — Look! The lights in your classroom are still on.
— Oh, I’m sorry. I forgot to _______ when I left.
A. turn them on B. turn on them C. turn them off D. turn off them
— Oh, I’m sorry. I forgot to _______ when I left.
A. turn them on B. turn on them C. turn them off D. turn off them
答案
C
( ) 6. Please don’t stand up in class until you _______.
A. were told to B. are told to C. were told D. are told
A. were told to B. are told to C. were told D. are told
答案
B
( ) 7. Many new roads have been built _______ develop the villages in the mountain areas.
A. in order to B. moreover C. instead D. so that
A. in order to B. moreover C. instead D. so that
答案
A
( ) 8. — You’d better not eat too much salt. It’s bad for your health. — _______.
A. Not at all B. You’re welcome
C. It doesn’t matter D. Thanks for your advice
A. Not at all B. You’re welcome
C. It doesn’t matter D. Thanks for your advice
答案
D
1. If people run red lights, they ____________ (fine) according to the traffic law.
答案
will be fined
2. — When ____________ the car ____________ (buy)? — In 2016.
答案
was; bought
3. He won’t get there on time if he ____________ (not leave) earlier tomorrow.
答案
doesn't leave
4. I don’t think ____________ (dig) such a hole is hard work.
答案
digging
5. Something must ____________ (do) to improve their lives.
答案
be done
6. How boring it is ____________ (watch) such a stupid movie!
答案
to watch
7. — Look! Someone ____________ (turn) off the lights.
— It wasn’t me. I didn’t do it.
— It wasn’t me. I didn’t do it.
答案
has turned
