例：1 He will is (be) at school next Monday.

　　　　 2 He is going to does (do) his homework after school.

　　 答案：1 be　 2 do

　　 解析：第一题有的同学一看he做主语就用了is，忽视了will后应加动词原形。我们在写句子时，很容易把动词丢掉，“英语句子里，动词不能少”的 规律必须要牢记。第二题中to后加动词原形，而不是用单三人称.。　

1 ______ they______ (feed) the animals at 5:00 yesterday afternoon?

2 Mrs.Green _____　 _____ (not wash) clothes at this time yesterday.

3 Grandpa ______　 ______ (mend) his clock when I reached home.

4 As I _____ (walk) in the park, I saw some children playing games.

答案：1 were feeding　 2 wasn’t washing　　 3 was mending　 4 was walking

1 What ______ from three to four yesterday afternoon?

A have you done　 B had you done　 C did you do　 D were you doing

2 – I call you yesterday evening, but there was no answer.

　- Oh., I’m sorry I _____ dinner at my friend’s home.

A home　 B had　 C was having 　D have had

3 My mother _____ while my father _____TV.

A cooked; was watching　 B was cooking; was watching

C was cooked; watched　 D cooked; watched

4 When I got home, my son _____ the music.

A am listening to　 B listened to　 C was listening to　 D was listening

5 We heard a cry when we ______ TV last night.

A were watching　 B would watch　 C watch　 D watched

6 She asked him whether he _____ back for lunch.

A come　 B was coming　 C came　 D had come

7 Could you tell me when ______?

A she is coming　 B she was coming　 C will be come　 D is he coming

8 The teacher ______ when I came into the classroom.

A is drawing　 B draws　 C has drawn　 D was drawing

9 The pizza ______ by my mother. Would you like to have some?

A makes　 B was making　 C made　 D was made

10 Nobody noticed what she ______ at the moment.

A will do　 B was doing　 C has done　 D had done

11 Was it raining hard when you _____ this morning?

A left　 B leaves　 C was leaving　 D would leave

答案：1 D　 2 C　 3 B　 4 C　 5 A　　 6 B　 7 A　 8 D　 9 D　 10 B　 11 A

例：昨晚我在读一本故事书。

　　 I read (read) a story book yesterday evening.

答案：was reading

解析：这两种时态的共同点是都用于表示过去发生的动作。但过去进行时强调动作正在进行，而一般过去时则表示过去某一时间所发生的动作或存在的状态，它表示的动作往往已经完成。“在”说明正在进行，而“I read a story book yesterday evening.”的意思是昨晚我读了一本故事书，言下之意已经读完了。故用过去进行时。

另外，在宾语从句中当主句为过去时，从句若是现在进行时，需变成过去进行时。

　　 e.g. He said that he was drawing a cat at noon yesterday.

专项训练：

例：My mother is cooking (cook)when I got home.

答案：was cooking

解析：这两种时态的共同点是都表示动作正在进行，但现在进行时前提是现在，而过去进行时前提是过去，由when I got home可看出前提是过去。

例：We were flying kites at 5:00 p.m. yesterday. (对划线部分提问)

　　 What were you at 5:00 p.m. yesterday?

答案：What were you doing at 5:00 p.m. yesterday?

解析：现在进行时中“What……doing……”?句式同样适用于过去进行时。

例：1 I watching (watch) TV when he came in.

　　 2 They were play (play) games at 5:00 p.m. yesterday.

　　 答案：1 was watching　 2 were playing

　　 解析：现在进行时中“be+现在分词,缺一不可”的规律也可应用于过去进行时。

　　 例：He was talked (talk) to his mum at that time.

　　 答案：was talking

　　 解析：过去进行时与现在进行时结构上的区别体现在be动词上。

例： Li Ming with me are (be) in Beijing.

答案: is

解析:表面一看是“我和李明两个人在北京”，但with在此做伴随状语，不能做主语，故用is.

　　 另外，宾语从句中，从句部分若是表示客观真理，不管主句是何时态，从句都要用一般现在时；在时间和条件状语从句中，主句表将来，从句要用一般现在时。

例：We don’t (not do) our homework in the afternoon.

答案：don’t do

解析：do是一个比较难理解的词，它有三个含义:　 a)是所有行为动词的总称；b)是助动词，无实义；c)是一个具体的行为动词“做，干”。此句中给出的do指“做，干”，not指把此句变为否定句，故须在do前加助动词don’t。