4.cut off

　cut off意思是“切断，切去”。off用作副词，如果动词宾语是代词，则必须置于off前。如果是名词则可以放在off前，也可以放在off后。例如: He cut off a small piece of cake and gave it to me.他切下一小片蛋糕并递给了我。

　Be careful!Don t cut off your fingers/cut them off.当心!别切了手指。

　timetres

　1)at这里表示“以……的速度”。例如

　He drove at a speed of 30 miles an hour.他的车速达每小时30英里。

　2)带小数数字的说法:整数部分按基数词读，小数点读作point，小数部分的数字分别读。例如:5.3读作five point three;74.35读作seventyˉfour point three five。

3.as many as

　as many as意思是“多达……，……之多”，as...as中间常接形容词或副词原形，即as+ adj./adv.+as。类似结构有

　as long/high/fast etc.as“长/高/快……达……”。例如

　The great fire burned down as many as twenty buildings.

　As many as 150 readers crowded round the famous writer.多达 150名读者簇拥在那位名作家周围。The cost of travelling to Europe is as much as 50，000yuan.去欧洲旅游之费用高达50，000 人民币。

　She can jump as high as 1.75 metres.The road is as wide as 10 metres.

2.the number of...

　用在可数名词复数前，表示“……的数量/ 数字”。作主语时，谓语动词用单数形式。例如

　The number of the students in our school is 2， 000.

　We haven t known the number of passengers who died in the aircraft.

1.a great part of...

　a great part of...意思是“大部分的……”，其对应词组是

　a small part of...“小部分的……”。例如

　A great part of the houses and fields were destroyed in the flood.在洪水中大部分房屋和田地被毁坏。

　He was so hungry that he ate a great part of the cake in one minute.他很饿，以至于一眨眼工夫吃掉了大部分蛋糕。

4.Carl， what does“quake” mean， as in the word“earthˉquake”?卡尔，“earthquake”里的“quake”是什么意思?as in the word“earthquake”是省略句，原句应为as it is in the word earthquake。as是连词，意思是“如”，“像”。

　as可以作连词、介词和关系代词。现将as的用法小结如下

　1)作连词

　①作“当……时候”解，引导时间状语从句，强调两个动作同时发生，或某事一发生，另一件事也立即发生。例如

　They were singing as they were walking home.回家时他们边走边唱。

　I startled as he opened the door.他一开门，我吓了一跳。

　②作“因为”解，引导原因状语从句。例如

　I must stop writing now，as I have a lot of homework to do.我现在必须停笔了，因为我有许多作业要做。

　③作“如/像”解，引导方式状语从句或比较状语从句。

　You should do as the teacher tells you to.你应当像老师告诉你的那样去做。

　The weather was not so wet as it is today.那天的天气不像今天这么潮湿。

　2)作介词，作“作为”解。例如

　He was famous as a pop singer.作为流行歌星，他很有名。

　3)作关系代词，在the same as和as follows这类结构中，as是关系代词。

　Lessons 26 & 27

3.I watched all the glasses fall off.

　这里watch用作及物动词，意思是“观察，观看”，后接复合宾语，复合宾语中的宾语补足语通常是不带to的不定式或现在分词，意思稍有区别。watch sb./sth.do意思是“观看某人/某事做了……”，表示看到事情发生的全部过程，而watch sb./sth.doing意思是“观看某人/某事正在做……”，表示看到事情正在发生的情形，并不一定指看到全过程。例如

　We watched the sun rise from the east.

　She watched her son swimming in the swimming pool.

2.I felt the floor move.

　feel这里用作及物动词，意思是“感到”，后面接复合宾语，即宾语+宾语补足语。宾语补足语通常是不带to的动词不定式或现在分词，结构是:feel...do/doing。例如

　I felt my heart beating fast.我感到我的心正在快速跳动。

　We both felt the desk shake just now.我们都感到刚才桌子摇晃了一下。

2.fall off fall off意思为“从……掉/摔下来”，off可用作介词，后接名词、代词等，也可用作副词。例如

　Ripe apples are beginning to fall off the trees.成熟的苹果开始从树上落下来。

1.at the time of...

　at the time of...意思是“在……时候”，后面常接名词或名词词组。例如

　He was very brave at the time of danger.

5.cook...whole这里whole意思是“整个”。注意它的位置，和代词连用时，whole必须放在代词后(例如:cook it whole);和名词连用时，可放在名词前，也可放在名词后。例如:

　He ate the egg whole/the whole egg.

　Shall we take half the work or leave it whole to you?6.In many parts of the world corn is made into powder.

　在世界上的许多地方玉米被做成玉米粉。 make...into...是“把……制作成……”的意思。请看下面的例句，注意由make组成的短语的意义和用法。They make wood into paper in this factory.在这座工厂里人们把木料制成纸。That cloth can be made into a dress.这块布料可以做一件连衣裙。This kind of paper is made from wood.这种纸是用木料制成的。This kite is made of silk.这个风筝是用绸子做的。Our medical team was made up of two doctors and three nurses.我们的医疗队由两名大夫、三名护士组成。7.be shipped from...to...

　ship这里用作动词，意思是“用轮船或其他交通工具运输，装运”，常用作被动语态。例如:

　Can we ship the box to Shanghai?我们能将这个箱子船运至上海吗?The fresh fruit is shipped to all over the country.新鲜的水果被运往祖国各地。8.By 1555，it had already become important here.

　by这里与表示时间的词连用，意思是“到……时候，在……之前”。当by引导的短语在句中作时间状语时，句子常用完成时态。例如:

　By the end of last term，we had learned 5，000 English words.

　We will have finished all the work by next Thursday. 涞

　例1 单项填空The buildings are pulled down toA newlyˉbuilt highway.

　A. supply with B. make use of C. make room for D. do their best

　[解析] 答案为C。根据语境，拆除旧建筑是为了空出地方修公路，所以C正确。

　例2 单项填空Cotton can be made cloth and many other things.

　A. from B. out of C. of D. into

　[解析] 答案D。cotton为原料，cloth和many other things为产品，所以该选D。另外三个选项都是产品在前，原料在后。

　例3 单项填空 2004北京春季Luckily， we d brought a road map without we would have lost our way.

　A. it B. that C. this D. which

　[解析] 答案为D。本题考查定语从句。介词后面的关系代词只能用which。