Sweeping down trees and sweeping them down too 表“冲倒了树，也冲倒了他们”之意，是现在分词作伴随状语。

e.g Mother came back home,bringing a lot of fruit and vegetabies.妈妈回家了，带回了许多水果和蔬菜。

The old lady was standing by the roadside ,looking around worriedly 。那位老太太站在路旁，担心地东张西望。

重点4　　☆☆☆

Then Jeff pulled her up .He was standing,holding onto a tree that grew against the wall.然后杰夫把她拉上来。他站着，抓住一棵倚墙而长的树。

1.pull sb. Up 把某人拉上来。

e.g. A little child fell into the deep hole .We tried to pull him up .小孩掉进了深洞，我们设法拉他上来。

2.holding onto a tree 握/抓住一棵树，现在分词做伴随状语。

e.g The teacher entered the classroom ,holding a book and a ruler in his hands .老师走进教室，手里拿着一本书和一把尺子。

3.that grew against the wall 靠墙而长的树。定语从名，修饰a tree. That 代替a tree ,在定语从句中作主语，可用which 替换。

e.g Don’t move the table which/that stands against the wall.别搬动那靠墙的桌子。

重点5　　☆☆☆

Tree after tree went down ,cut down by the water,which must have been three metres deep.which must have been three metres deep.一棵树接着一棵树倒下了，是被水冲倒的，那水一定有3米深了。

1.tree after tree 意为“一棵树接着一棵树”。

After 表多次重复。类似词组有day after day 日复一日，week after

Week 一星期一星期地，year after year 一年一年地，time after time 一次又一次地，little by little 逐渐地，bit by bit 一点点地。

e.g.The milu deer liked the cool wet weather in England and their mumber increased year by year .麋鹿喜欢英格兰凉爽而潮湿的天气，他们的数目一年一年地增加。

The scientist did experients day after day until! He succeeded.那位科学家日复一日地做实验，直直到成功。

2.go down 下来，下降，倒下

3.cut down 砍倒;消减，压缩；缩短

e.g. I suggest we should not cut down trees when they are still young.我建议不应该砍小树。

We are for cutting down the cost of bullding the house.我们赞成降低建房成本。

重点6　 ☆☆☆

a part of the house had gone down and the flo0or moved up and down under their feet .For some moments both were silent .房子有一部分已经垮了，地板在他们脚下晃悠着，同时半会他们俩都一言不发。

1.a part of 表“……一部分”，冠词a 常　可不用。后面可接单数或复数名词。Parts of 表“……有些部分”。

e.g.Here is (a )part of his letter to his penfriend about his summer vacation .这是他写给笔友有关他暑假的信中的一部分。

She had a miserabie holiday－she was ill for part of the time.她假日过得很不愉快――因为病了一段时间。

Parts of the film are very interesting.这部电影有些部分还不错。

2.for some moments 一会儿，类似于for a moment /minute.

e.g.He thought for a moment and then spoke.他想了片刻，然后说

For some moments/For a moment or two nobody answered.有一会没有人回答。

He said he had read the book at odd moments .他说他在空暇时看了这本书。

要点记忆

1．☆☆☆　before 作连词，通常　译为“在……之前”，但有时也可译为“在……之后”或“还没来得及……”等，作介词时后可接名词、代词、动名词。构成句型：It was (not)…before …did (过去式)，表“（没）过多长时间，某事发生了”，it will (not )be …before…do(现在时)……表“过不了多长时间某事将发生”。Noise,sound ,voice 都　可译为“声音”，但noise　主要指噪声；sound 泛指人或物发出的声音，如鸟声、机器声、水流声；voice主要指人的嗓音。