新概念2册练习册 Lesson 7 Homework 教师版

●仿照例句用括号中的词改写下列句子（注意时态一般过去时V.S过去进行时的使用）。Example：They wait on the airfield. The plane arrive.(when)

They were waiting on the airfield when the plane arrived.

1.Two detectives keep guard at the door. Two others open the parcel.(when)

When Two detectives were keeping guard at the door, two others opened the parcel.

2. I take a walk with my friend. We meet our old teacher.(when)

When I was taking a walk with my friend, we met our old teacher.

3. The girl practice the violin at home. We watch TV outside. (while)

While the girl was practicing the violin at home, we were watching TV outside.

4. My mother come back. I finish my homework. (when)

When my mother came back, I finished my homework.

5. My mother come back. I do my homework. (when)

When my mother came back, I was doing my homework.

●用一般过去时V.S过去进行时填空

1. I lit the fire and it was burning(burn) brightly when my wife came(come) back at 9:00.

2. He was having(have) a bath when the phone rang(ring). Very unwillingly he got(get) out of the bath and went(go) to answer it.

3. The thief opened (open) the safe when he heard(hear) footsteps.

4. You looked (look) very busy when I saw(see) you last night? What were you doing (do)?

5. He was playing(play) the guitar outside her house when someone opened(open) the window and threw(throw) a bucket of water over him.

6. While the guests were dancing(dance), thieves broke(break) into the house and stole(steal) a lot of fur coats.

7. He was cleaning(clean) his gun when it accidentally went(go) off and killed(kill) him.

●仿照例句用下列的短语动词改写句子。

look up put down ring up work out take off

Example：Would you like to put your bag on the floor?

Would you like to put your bag down on the floor?

Would you like to put down your bag on the floor?

Would you like to put it down on the floor?

1.I usually telephone my sister at the weekend for a chat.

I usually ring up my sister at the weekend for a chat.

I usually ring my sister up at the weekend for a chat.

I usually ring her up at the weekend for a chat.

2.I don't know the meaning of this word. 1 must find the word in the dictionary.

I don't know the meaning of this word. 1 must look the word up in the dictionary.

I don't know the meaning of this word. 1 must look up the word in the dictionary.

I don't know the meaning of this word. 1 must look it up in the dictionary.

3. This problem is really difficult. Could you help me solve this problem?