四级语法系列练习－时态、语态(4)

Unit¹ 1 时态、语态(四)

10. Until² then, his family _____ from him for six months.
A. didn't hear
B. hasn't been hearing
C. hasn't heard
D. hadn't heard

11. Before the first non-stop flight⁴ made⁵ in 1949, it _______ necessary⁶ for all planes to land⁷ for refueling.
A. would⁸ be
B. has been
C. had³ been
D. would have been

12. We _____ our breakfast when an old man came⁹ to the door.
A. just have had
B. have just had
C. just had
D. had just had

答案：
10. D
译文：到那时为止，他家里有六个月没有得到他的消息了。
本句是过去完成时的用法。到过去某个时候(until then)之前，所发生的动作(hear from...),过去完成时常与表示一段时间的状语(for six month)连用。

11. C
译文：1949 年首次直飞以前，所有飞机都需着陆加油。
本句是过去完成时的用法。在过去某个时间之前一直存在的状态，表示过去的过去，所以用过去完成时。

12. D
译文：我们刚吃罢早饭，就有一位老人上门了。
本句是过去完成时的用法。在过去某个时间(come) 之前已经完成的动作(have breakfast) ，表示过去的过去，所以用过去完成时。

1 unit   

n.单位，单元，部件，元件，装置

参考例句：

• This unit is very hard.这个单元很难。
• This textbook has twenty units.这本课本有二十单元。

2 until   

prep.直到...为止；conj.直到...时才...

参考例句：

• He arrived home until midnight.他直到半夜才到家。
• She didn't sleep until midnight.她直到半夜才睡。

3 had   

vbl.have的过去式和过去分词；conj.有

参考例句：

• I just had a good idea!我有个好主意！
• The boy had a small branch of a tree in his hand.这个男孩手上拿一条小树枝。

4 flight   

n.飞行，飞机的航程，航班；逃跑

参考例句：

• I want to change my flight.我想变更飞行班次。
• I lost my flight ticket.我的飞机票丢了。

5 made   

v.make的过去式和过去分词

参考例句：

• They were not made in china.它们不是中国制造的。
• The monkey made a long arm for the peach.猴子伸臂去摘桃子。

6 necessary   

adj.必需的，必要的；n.（pl.）必需品

参考例句：

• If necessary,give me a ring.如果需要，打个电话给我。
• Sleep is necessary to health.睡眠对健康是必要的。

7 land   

n.陆地，国土，土地；v.登陆，登岸，卸货

参考例句：

• Farmers work on the land.农民在土地上干活。
• How long is it before we land?我们还有多长时间降落？

8 would   

aux.will的过去式；愿，要；常常；大概；将要，会

参考例句：

• Why would you say that?为什么你会这么说？
• Would you please help me?你能帮帮我吗？

9 came   

v.动词come的过去式

参考例句：

• I was surprised why he came here so early.他为什么那么早到这里，我很惊奇。
• The doctor came in time to save his life.医生及时来抢救他的生命。