2 )nor.是一个并列连词， 常与neither 或not 连用， 有时也与no， never 等表否定的词连用， 其含义为“ 也不”。它在连接两个主语时， 谓语动词与毗邻的并列成分保持数的一致。
Neither he nor I am a student. 我和他都不是学生。
Not a fly nor a mosquito was to be found.
无论苍蝇还是蚊子一只也找不到。
3 )being 用作名词， 指“ 生物”。
Men， women and children are human beings.
男人、女人和儿童都是人。
8.Their leaves spread their broad surfaces to the air and take in its
riches. 它们的叶子在空气中将宽阔的叶面展开， 吸取丰富的养分。
1 )take in 吸收；接受， 接纳；容纳
The farmer took in the lost travellers for the night.
那位农民接待迷路的旅行者在家中过夜。
The ship took in three thousand tons of coal. 那船装载三千吨煤。
2 )riches 是一个名词， 其基本含义为“ 财富， 财宝”等。但在这里的意思是“ 丰富”。
Riches have wings. [ 谚] 钱财易散。
He piled up great riches. 他积聚了万贯家财。
9.If it finds water， it begins to suck it up and change it into sap.
如果找到了水， 它就开始吸取并将其转化为植物液。
1 )suck up 吮吸， 吸取
The chemist sucked up 20 cc of acid into a pipette.
药剂师把20 毫升的酸吸入吸量管内。
Blotting paper sucks up ink. 吸墨纸吸墨水。
2 )change into 转化成， 变成， 换成He changed out of his overalls and into a suit. 他脱下工作裤， 换上一套西服。
Caterpillars cha nge into butterflies or moths.
毛虫会变成蝴蝶或蛾。
10. Besides the water， it takes up such parts of the soil as are dis- solved in the water.除了水之外， 植物还吸收土壤中那些溶于
水的东西。
1 )such.as.是一个固定搭配， such 作定语， 修饰后面的名词， as 是一个关系代词， 代前边的名词引出定语从句， 并充当从句中的句子成分。
We will give you such data a s will help you in your work.
我们将提供对你工作有帮助的资料。
Let us discuss only such questions a s concern everyone of us.
我们只讨论与我们每个人有关的问题吧。
2 )take up 吸收
Use a blotter to take up the spilled ink.
用一张吸墨纸把溅出来的墨水吸掉。
3 )辨异： dissolve， melt. v.
它们都含有“溶化”的意思。
dissolve 溶化。是指固型物在液体里边溶化。
Water dissolves suger. 水溶解糖。
He dissolved the salt in water.他使盐在水中溶化。
melt 熔化， 融化。主要指坚硬的东西因热而变软、熔化等。
Butter melts in a warm place. 奶油在暖和的地方会溶化。
The iron wa s melted by the heat. 那块铁被热熔化了。
练习答案
课文A 练习
I. 阅读理解：
1. b 2. a 3. b 4. c 5. c
II. 从课文中找出下列词或短语的同义词：
1. rare 2. substance 3. slight 4. pressure 5. crystal 6. crack 7. gem 8. elevator 9. blast 10. pebble ·89·
III. 用“It is”或“It was”把下列句子改成被动句：
1. It was thought that the earth was flat.
2. It is reported that a new government has been formed.
3. It was believed that the sun traveled around the earth.
4. It is believed that living things exist on Mars.
5. It is said that the world temperature is growing higher.
IV. 用下列短语完成句子：
1. stick to 2. change.into 3. stick to 4. running out 5. pick up 6. changed into 7. run out 8. picked up 9. sorting out 10. sort out V. 把下列句子译成英语：
1. It is well known that diamonds are the hardest substance.
2. Most diamonds today are not found in stream beds， however， they are mined
from rock formations deep inside the earth.
3. Diamonds do not look very impressive as they are mined.
4. He has no persistence in doing anything.
5. The eruption of an active volcano is a terrible phenomenon.
词汇练习
I. 用所给单词的正确形式填空， 注意词性：
1. a. popularity b. popularize c. popular 2. a. hand b. hand c. handful 3. a. formed b. formation c. forms 4. a. impression b. impressive c. impressed II. 用下列所给单词的正确形式填空：
1. experienced 2. Extreme 3. formation 4. pressure 5. blasted 6. handful 7. crystal 8. destroyed 9. unusual 10. flow III. 把下列句子译成英语：
1. Please sort out what you want and throw away the rest.
2. The price of this elevator is somewhat higher than they have expected.
3. These designs are very popular with young people.
4. He stopped writing because his pen had run out of ink.
5. Experienced people can tell which one is real immediately.
课文B 练习
I. 根据课文判断下列句子正确与否：
1.× 2. √ 3.× 4.× 5.× 6. √ 7.× 8. √ 9. √ 10. √
II. 根据课文填上所缺的内容：
1. difficulty 2. the thin blue haze
3. magnifying glass 4. do， be
5. guessing 6. vegetable
7. come first， a higher order of beings 8. earth， air
9. flowers， fruits， grain 10. carries
词汇练习
I. 从右边一栏中找出与左边一栏单词相应的定义：
1. d 2. b 3. a 4. c 5. e
II. 用课文B 中的单词填空， 首字母已给出：
1. puzzled 2. dissolve 3. aside 4. magnifying 5. latter 6. observes 7. beneath 8. broad 语法练习
I. 用括号里所给的动词的限定时态填空， 并将句子译成汉语：
1. died
汤姆23 岁时他父亲就去世了。
2. does not guarantee
仅有练习并不能保证成年语言学习者成功。
3. advised
他建议他儿子到30 岁时再结婚。
4. is looking for
他正找机会和他谈话。
5. comes
等着轮到你。
6. was going
他正要离开餐馆， 突然经理进来了。
7. will have left
快点！ 否则， 我们到车站时火车就开走了。
8. would help
她说她第二天将帮助她丈夫洗车。
9. will be sitting
明天的这个时候他们将坐在电影院里看电影。
10. were playing
这些男孩透过窗户往外看， 一些小象正在外边玩。
11. will go
几百年之后， 人们将到其他星球上度假。
12. had finished
他吃完早饭后到售票处去了。
13. would be
他终于意识到考虑一下出国费用将是明智的。
14. will have locked
快点！ 否则你还没进去商店就已经锁门了。
15. had been getting
他认为最近天气一直相当好。
16. had been keeping
我只想让你知道你使我们一直未曾睡着。
17. had happened
几乎过了一星期， 那女孩才能解释她所发生的事情。
18. will tell
当你问她时， 她将会告诉你这一消息。
19. had finished
我还没有吃完早饭， 约翰就打电话来说他要来看我。
20. has passed， failed
乔治通过了驾驶考试， 但却没有通过学校考试。
II. 选择填空：
1. B 2. B 3. D 4. D 5. B 6. B 7. D 8. A 9. D 10. A
III. 用括号里的动词的适当时态填空：
1. invented 2. offer 3. have been sitting 4. brought 5. has not paid 6. had seen 7. was ****** 8. has been working 9. am preparing 10. has happened IV. 将句子译成英语：
1. The students in the medical college are observing an operation.
2. Wind blows hard in March.
3. Where are you going to hang that picture？
4. She fell down when she was going downstairs.
5. How many years has Henry learned cooking from Miss Smith？
6. The history teacher said that World War I ended in 1918.
7. Mary has been waiting for you since this morning.
8. My sister told me that the programs were meaningless.
9. If you come at 8 tomorrow morning， you will see him in the office.
10. --Have you seen the film？--Yes， I have. I saw it in Nanjing.
