救出来。

a) who 引导定语从句， who were 可省略 ，这就变成helped out... 过去分词短语作定语。

b) help out忙做某事，help someone out 帮助(克服困难)。

Eg: Can I help you out? 我可以帮你解决问题吗？

Eg: The cook is ill, so I'm helping out this week. 厨师病了，所以这周我来帮忙。

巩固练习：

Translation

1. The bus___________(陷入)the snow and we had to walk the rest of the way.

2. 如果我当时呆在卡车里，我就没命了。

3. We often_________________________. 我们经常对时事发表评论(current events)。

4. The school_________________(区别对待) between boys and girls.

5. _______________________________(只要你答应我们的条件), we'll start working immediately.

6. Tom always________________________________ (放学后总是在农场帮忙), you can find him there.

Multiple choice

1. It says here, in the newspaper, _____ English is getting more and more important.

A. what B. which C. that D. /

2. Had he worked harder, he ______ the exam.

A. must has got through B. would have got through

C. would get through D. could get through

3. You can go out, ______ you promise to be back before 12 o'clock.

A. as good as B. as long as C. as far as D. as well as

4. Oil prices have risen by 32 percent since the start of the year,_______ a record of US ＄57.65 a barrel on April.

A. have reached B. reaching C. to reach D. to be reaching

5. He hurried to the station only________ that the train had left.

A. to have found B. finding C. found D. to find

Complete the text with the words below.

Yesterday, Mary heard that her (1) ____had broken his (2) ____. He had been doing(3) ___ in the country and got (4) ____ in the fog! He kept on walking, and finally landed up in a (5) ___field. In this field, he fell over a sleeping sheep and hurt himself. He phoned the (6) ___ doctor on his mobile phone, and then waited in the mud for the (7) ____ to come. But when it arrived, its tyre (8) ___________ the mud! He only got to the hospital four hours later. Mary described this whole (9) _____ to me with a big smile on her face.