一、词汇运用
1. It's (danger) to walk alone in the mountains at night.
2. Let's (tie) the thread and set the bird free.
3. How many (方法) can you think of to work out the problem?
4. The new (产品) of the factory sell very well.
5. Read the (用法说明) before you start taking the medicine.
6. The little girl jumped with (高兴) when she saw her birthday cake.
7. The artist uses different sizes of (画笔) to draw beautiful details.
8. Mum told me to (弄干) the dishes with a clean cloth after washing them.
9. We can (减少) plastic use by bringing cloth bags when shopping.
10. There is plenty of (废料) in the room. We must clean it up right away.
11. Mr Wu wrote a Maths problem on the blackboard with white (粉笔).
12. The teacher gave me a low (分数) because there're many spelling mistakes.

1. dangerous 2. untie 3. methods 4. products 5. instructions 6. joy 7. brushes 8. dry 9. reduce 10. waste 11. chalk 12. mark

二、根据句意，在所给词的前面加上正确的前缀
1. Some animals, like bears, are (active) during winter.
2. Be careful. The one - year - old baby is still (able) to walk by himself.
3. After waiting for 20 minutes, the little boy became (patient).
4. David stopped walking because he was (sure) which road to choose.
5. There're many (correct) answers in your homework. Please be more careful.
6. We don't like John because he is always (friendly) to others.
7. Nothing is (possible) if we work together.
8. — Simon is late for school. — It's (usual). He's always the first to get to school.

1. inactive 2. unable 3. impatient 4. unsure 5. incorrect 6. unfriendly 7. impossible 8. unusual

() 1.My mum always tells me not to talk in impolite way. She hopes I can be useful person in the future.

A.an; an
B.an; a
C.a; a
D.a; an

1. B

() 2.Don't the windows open when you are out, ?

A.make; will you
B.leave; will you
C.make; won't you
D.leave; won't you

2. B

() 3.Not only Lily but also Sandy forward to the next school trip.

A.look
B.looking
C.is looking
D.are looking

3. C

() 4.My breakfast is milk and bread, but today I tried noodles.

A.noisy
B.magic
C.usual
D.wrong

4. C

() 5.Beethoven became deaf (聋的) and lived a hard life, but he always put and happiness into his music.

A.spirit
B.joy
C.culture
D.symbol

5. B

() 6.— Can you teach me to make a lantern?
— Sure. It's quite simple.

A.how
B.what
C.why
D.where

6. A