上海版牛津英语 9B 第一章学习辅导材料

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上海版牛津英语 9B 第一章 学习辅导材料
学习新词语
consumer n. 消费者；消耗者 例如：
The product must meet the demand of consumers. 产品必须满足消费者的要求。
[同根词]：consumption n. 消费 consume v. 消费 consumable adj. 可消费的
consumptive adj. 消费的；消耗的（n. 肺病患者） 例如：
The consumption of beer went down when tax on it was raised.
当啤酒税提高时，啤酒的消耗量就降低了。
atmosphere n. 大气层 例如：
The aeroplane can only fly in the atmosphere. 飞机只能在大气层飞行。
[同根词]：atmospheric adj. 大气层的；气压的；气氛的
atmospherecal adj.大气所引起的
atmospherecally adv. 就大气的作用而言；气压上 例如：
atmopheric conditions 大气的情况
petrol /‵petr l/ n. 汽油 例如：
I bought ten kilograms of petrol. 我买了十公斤汽油。
drown v. 使淹没；使湿透；淹死 例如：
The noise in the street drowned the speaker’s voice.
街上的嘈杂声淹没了演讲者的声音。
Twenty people were drowned in the floods. 洪水淹死了二十人。
[同根词]：drowner n. 溺水者；溺死者
environment n. 环境 例如：
The rural environment lent itself to the restoration of his health.农村环境有助于他恢复健康。
[同根词]：environmental adj. 环境的；与环境有关的
ozone n. 臭氧
an essential protective layer 一层必要的保护层
CFCs (chlorofluorocarbon) 氟氯化碳
spray n. 喷雾器；雾汽；水沫 例如：
The spray of the waterfall splashed to her face. 瀑布的水沫溅到她的脸上。
erosion n. 腐蚀，侵蚀
[同根词]：erode v. 腐蚀；侵蚀 erosive adj. 腐蚀性的；侵蚀的
fuels n. 燃料 例如：
The fuels of the car has run out. 汽车的燃料耗尽了。
layer n. 层 例如：
This cake has a layer of chocolate in the middle. 这蛋糕中间有一层巧克力。
lifeless adj. 无生命的 例如：
We think the Mars is a lifeless planet. 我们认为火星是一个没有生命的星球。
massive adj. 巨大的
[同根词]：mass n. 块；大多数，大量；群众 例如：
They held a mass meeting. 他们开了个群众大会。
occur v. 存在，发生 （occurred, occurred, occurring） 例如:
The accident occurred at five o’clock. 事故发生在五点钟。
[词义辨析]：happen, occur, take place 这三个词都含“发生”的意思。
1. happen 是常用词语，指“一切客观事物或情况的偶然或未能预见地发生”。例如：
The accident happened yesterday. 事故发生在昨天。
2. occur 是比较正式的用语，指“按计划使某事或某效果发生”，通常所指的时间和事件都比较确定，在以具体事物、事件作主语时，可与happen互换。例如：
These events occurred in 1909. 这些事件发生于一九零九年。
3. take place “发生实现计划或预想到的事物。”例如：
The meeting took place at 9:00 as planned. 按计划会议在九点进行。
pollute v. 污染 例如：
Your smoking is polluting the air in this room. 你抽烟污染了房间里的空气。
[同根词]：pollution n. 污染物；污染
threat n.[C] 恐吓；威胁 例如；
There are many threats to our daylife. 在日常生活中存在许多威胁。
[常用搭配]：
（1）the threats of 对于……的威胁 例如：
The coming typhoon has started its threats of the cities on coast.
即将到来的台风已经开始了对沿海城市的威胁。
（2）a / the threat of ……的（坏）兆头；……的迹象 例如：
It seems that there is a threat of typhoon. 好像有要刮台风的迹象。
[同根词]：threaten v. 恐吓，威胁 例如：
His father threatened to beat the boy if he stole again.
男孩的父亲威胁说如果他再偷东西的话，就要揍他。
soil n. 泥土，土壤 例如：
The soil here is too poor to plant. 这儿的土壤太贫瘠了，不能用于种植。
flooding n. 泛滥；水灾
destruction n. 毁坏；毁灭 例如：
My house suffered the destruction from the war. 我的屋子遭受战争的毁坏。
[同根词]：destructive adj. 毁坏的；毁灭的；有害的
destructively adv. 破坏地；狼狈地
vital n. 本质；要害；核心 adj. 生命的；致命的；维持生存所必需的
It is vital that…. (做……)是至关重要的。例如：
It is vital that we take a good review to prepare the exams.
对我们来说好好复习准备考试是至关重要的。
常用词组：
be in danger 处于危险之中 例如：
People should protect those wild animals in danger. 人们应该保护那些濒危的野生动物。
be in danger of … 处于……的危险之中 例如：
The bridge is in danger of collapse. 桥要塌了。
[词义辨析]：in danger, dangerous 两者在句中都可作表语。
1. dangerous 是形容词，意思是“危险的”，只句子的主语对别的人/物有危害。例如：
The girl is in danger. 这女孩处境危险。
2. in danger 是介词短语，意思是“处于危险状态，在危险中”，指句子的主语处在危险状况中。例如：
The girl is dangerous. We must be careful with her. 这女孩很危险。我们必须提防她。
out of danger 脱离危险 例如：
We are now out of danger. 我们脱离危险了。
first of all 首先 与first 意思相同，语气更重，更能强调其重要性和首要地位。例如：
First of all, let’s invite Mr. Welson to give us a speech.首先我们请威尔逊先生为我们讲话。
The Greenhouse Effect 温室效应
effect 指“影响；变动；结果”，通常与介词on连用，表示对人或物所起的作用。例如：
His words had a strong effect on me. 他的话对我的影响很大。
keep sth. (sb.) from doing 阻止……做某事 例如：
What kept you from joining us last night？昨天晚上什么事使你不能参加我们的晚会？
[同义词组]：stop… from doing sth. prevent … from doing sth. 这两个短语中的from可以省略，而keep … from doing 中的from 不能省略，否则将变成keep sb. doing sth. 意思是“使某人一直做某事”。
在被动语态中三个短语中的from都不能身略，就是在：be stopped / prevented / kept from doing sth. 中, from 不能省略。例如：
She was prevented / stopped / kept from taking the exam by illness. 她因病未能参加考试。
burn up 烧掉；焚毁 例如：
The spacecraft burned up as it entered the earth’s atmosphere.
宇宙飞船进入地球大气层时被烧毁。
take in 吸收（相当于absorb） 例如：
People take in oxygen and give out carbon dioxide. 人们吸入氧气，呼出二氧化碳。
do with 对付；处理 例如：
We do not know what to do with the rubbish and it pollutes our land and sea.
我们不知道如何去处理这些污染我们的陆地与海洋的垃圾。
[词义辨析]：Do with, deal with
1. do with 意思是“处理；安排”，后面接名词或that 从句作宾语，常与what连用表示询问。例如：
What will we do with this？ 我们如何处理这件事？
2. deal with 意思是“处理；解决”，后面可接名词或从句作宾语，也可用于被动语态或用它的不定式作定语，主语通常是人或事。deal with 中deal 是不及物动词，不能带宾语，deal with 多与how 连用表示询问。例如：
How did you deal with you homework 你是如何解决你的作业的？
is essential to 是不可缺少的 例如：
The sunlight is essential to crops. 阳光对农作物是不可缺少的。
[同根词]：essentiality n. 实质；重要性 essentially adv. 实质上；本来
carbon dioxide (CO2) n. 二氧化碳
课文参考译文
年轻绿色消费者指导
这本书上说我们的世界处于危险之中。我们应该为拯救地球行动起来,这一点至关重要。首先,威胁地球的危险是什么
温室效应
作者叫我们“想象一下温室中的地球,大气像玻璃一样包裹着它。只允许阳光照射进来,而阻止热量散发出去。大气是所有生物不可缺少的。没有了大气,地球就会像月球表面一样冰冷,毫无生气。”
“问题是我们四周的大气正在改变,因为我们正用各种气体形式的化学物质污染大气,它正在保存太多的热量。”
这些气体,主要是二氧化碳,是燃烧燃料如汽油产生的。温室效应可能引起海平面的上升而淹没城市,甚至整个国家。
臭氧层的损害
作者告诉我们“臭氧是出现在地面上方20-50千米的气体。它在地球上方形成一层必要的保护层。没有它,太阳会把我们焚化。”
我们却在臭氧层中制造洞眼,这主要是使用一种称作氟化物的化学物质造成的。我们把这些物质用在冰箱和喷雾剂罐中,以及制造快餐饭盒之类的塑料产品中。
雨林的破坏
燃烧和砍伐树木加剧温室效应,因为树木吸收二氧化碳。它除了损害以树林为家的人类和动物,还引起水土流失和洪涝灾害。
坏习惯
我们很多的坏习惯都产生污染,特别是使用一次性物品,然后扔掉的坏习惯。这制造了大量的堆积如山的垃圾。我们不知道怎样处理这些垃圾,它们污染了我们的陆地和海洋。例如,在英国,每年要扔掉70亿个饮料罐。排起来可以从地球排到月球。
我们怎样拯救地球
这本书的思想是我们应该成为绿色消费者,即我们应该只购买那些不破坏环境的物品,而且应该只买那些不破坏环境的公司的产品。
语法一：原因状语从句
（一）原因状语从句经常被用来说明事物发生的缘由。 常见的用于原因状语从句的引导词有because, since, now that, as和 for.
1. because 语气最强，在强调必然的因果关系时，用来说明人所不知的原因，回答why提出的问题。例如：
She didn’t go, because she was afraid. 她不去是因为她害怕。
---- Why did you come 你为什么来？ ---- Because I want to see you. 我想来见你啊！
2. 用as 表示原因时，着重点在主句，原因只能做附带说明。例如：
As you weren’t there, I left a message. 因为你不在那里，我留了个信儿。
You needn’t go to see him today, as you are busy. 既然你很忙，你今天就不必去看他了。
3. since 表示显而易见的理由。例如：
Since we have no money we can’t buy a new car. 因为我们没钱，没法买新汽车。
[注意] as, since, because 不可以与so（所以）出现在同一个句子中。
4. now that 引导的从句通常位于主句前面，其中that可以省略，通常提出某一事实作为理由或原因。例如：
Now (that) the rain has stopped, we can leave. 既然雨停了，我们就可以走了。
Now (that) you’ve got a chance, you might as well make full use of it.
既然你得到了这个机会，就该好好地利用它。
5. for 表示原因时，只是一种补充说明。例如：
We must start early, for we have a long way to go.
我们必须造点出发，因为我们有很长的路要走。
（二）because 和 because of
because 后跟句子说明原因，而because of 后跟名词或代词说明原因。例如：
Because of the heavy traffic I was five minutes late for my interview.
= I was five minutes late for my interview because the traffic was heavy.
由于交通阻塞，我面试迟到了五分钟。
The match had to be cancelled because there was water lying on the pitch.
= The match had to be cancelled because of the water lying on the pitch.
由于场地上的积水，比赛不得不取消。
语法二：用as...as表示比较的几个句式
在讲到形容词比较级as...as 时，绝大多数讲的都是 as +形容词+ as 结构。例如：
He is as handsome as his brother (is). 他和他哥哥一样英俊。
Judy goes to the movies as often as Sara does. 朱迪像莎拉一样时常去看电影。
Old John goes to sleep as easily as a baby does. 老约翰像婴儿一样容易入睡。
He cannot run so/as fast as you. 他不能有你跑得那么快。
但是，像上面那样的例子多了，就产生一个问题：不少学生都以为as ...as 中间只有形容词。实际上，在 as...as 结构中，还可以有其它的几个句式。
1. as 形容词+名词 as 句式
这种结构在文章中也很常见，但很多学生不习惯。这里给几个例子，请大家仔细研究一下，提一点请大家注意，就是：形容词后面(包括many/much) 的名词有单数、有复数、有不可数。例如：
This is as good an example as the other is. 这和另外一个一样是个好例子。
He is as nice a boy as Peter (is). 他和彼得一样都是好男孩。
The girls are as busy with their work as bees. 这些女孩子就跟蜜蜂一样忙着工作。
She has as many friends as Mary (does). 她和玛丽一样有许多朋友。
He has as much money as John (does). 他和约翰一样有很多钱。
I can carry as much paper as you can. 你能搬多少纸，我也能搬多少。
2. as many as 与 as much as
这两个比较的意思是“像……一样多”，既可以把它们作为比较级看，也可以把它们看作是一个固定的词组。同样，在 ...many/much... 后面可以插入名词，形成 as...many/much +名词...as 的句式。例如：
(1) 作为固定词组来使用的，相当于“……那么多”。
She has as many as seven sisters. 她的姊妹有七人之多。
As many as 100 people were killed in the air crash. 这次空难中多达一百人丧生。
I gave the beggar as much as 1,000 yuan. 我给了这乞丐整整一百元。
Building costs ran up to as much as $ 20 million. 建筑费用涨到高达两千万。
类似的“长达……”、“宽达……”、“早在…”等，也可以用这种结构表示。例如：
I have been learning English (for) as long as 15 years. 我学英文已有十五年之久。
He came home as late as two in the morning. 他迟至清晨两点才回家。
I saw your brother as late as last week. 上个礼拜我还看到你哥哥。
The river is as wide as 100 meters. 这条河宽达一百公尺。
I mailed the letter as early as Friday. 我早在星期五就把信寄了。
We walked as far as the railroad station. 我们走到火车站那样远的地方。
(2) 作为比较级来使用的，后面可以插入名词，意思是“……一样”。
To eat too much is as much a bad thing as to eat nothing. 吃太多和什么都不吃同样是坏事。
He is as much a member of the orchestra as Tom. 他和汤姆同样是管弦乐队的成员。
Comets are just as much members of the sun’s family as (are) the other planets. 彗星和其他的行星同样是太阳家族的成员。
3. as...as one can (could) / as...as possible / as ... as ... can be
这几个结构意思差不多，都表示“尽可能”的意思。 例如：
(1) as..can
Take as much exercise as you can. 尽可能多做运动。
Be as careful as you can. 尽可能小心。
You should be as careful as you can in making friends. 在交朋友方面，你应该尽可能小心。
To speak English fluently, you had better read as many English articles as you can.
要想把英文讲得很流利，你最好尽量多看英文文章。
We had better learn by heart as many sentence patterns as we can.我们最好尽可能多背句型。
I will try to save as much as I can. 我会设法尽可能多储蓄。
(2) as..could
Our teacher explained the lesson to us as clearly as he could.
我们的老师尽可能清楚地为我们解释这一课。
She needed to soften her request to make it as polite and courteous as she could.
她需要使请求语气柔婉，以便尽可能把它变成有礼貌与客气。
I looked down the road as far as I could. 我尽可能遥望这条路。
(3) as...as can be
His failure is as plain as plain can be. 他的失败是再明白不过了。
He is as handsome as (handsome) can be. 他潇洒极了。
She is as kind as can be. 她极为和颜悦色。
Mary is as hardworking as can be. 玛丽在班上之用功不输任何人。
He may not be so clever as Peter, but he is as industrious as can be. 他也许不如彼得聪明，但却用功极了。
其它例如：
as plain as plain can be（再明白不过了） as wise as wise can be（再聪明不过了）
as white as white can be（白得不能再白了） as wrong as wrong can be（错得太离谱）
4. as ... as ever
as ever 可以当成一个词组，意思是“与以往一样”。例如：
He seems to be as busy as ever. 他似乎和往常一样忙碌。
He works as hard as ever. 他和往常一样努力工作。
She was as beautiful as ever after so many years. 过了那么多年，她美丽如故。
语法三：其他的比较方式
1. like 与similar
在比较事物时，like 与similar to常被用来描述被比较物体之间在某（些）方面的相似，用以连接两个被比较的物体。例如：
He is wearing a hat like mine. 他戴着一顶和我一样的帽子。
The karete bout is quite similar to a boxing match. 空手道比赛很像拳击赛。
我们可以使用similar来表示两个物体相似，做标语用；而like 不可以这样用，需使用like的派生词alike 。例如：
Our tennis rackets are similar / alike. 我们的网球拍很像。
2. the same as 与 different from
(1) 要表示某一物体与另一物体一模一样时，我们使用the same as。例如：
Your bicycle is the same as mine. They are both model 8DKOs.
你的自行车和我的一模一样，都是8DKO型的。
(2) 要表示某一物体与另一物体完全不同时，我们一般用different from.。例如：
Cindy’s cassette recorder is different from Pam’s. 辛迪的录音机和帕姆的不同。
(3) the same 和different 也可以做表语，用来比较主语中提到的物体。例如：
Jean and Joan are twins. They look exactly the same but their personalities are completely different. 杰恩和琼是双胞胎，他们看起来简直就是一模一样，但他们的性格完全不同。
3. 用程度副词增强比较的不同语气
在比较事物时，为了表达不同比较的相似度或差异度，我们可以使用quite, very, nearly, exactly, completely等程度副词加以修饰。在上面的例句中已有所显示。
4. similar … to, the same … as 和different … from 的使用
我们把名词和上面这些短语放在一起进行比较：
I like different food from my brother. 我喜欢的食物和我哥哥的不一样。
Judy is the same height as her twins sister. 朱迪和她的双胞胎姐姐一样高。
David likes similar subjects to Keith. 大卫喜欢的科目和基恩差不多。
[注意]：在比较单数的可数名词前，similar 和different 都要加不定冠词a。例如：
Xiao Jun is a different boy from Wang Hai. 晓军是一个与王海不一样的男孩。
练习题：
一.单项填空
1. They play all kinds of instruments and sing ____.
A. also B. either C. as well D. as well as
2. Tom， ____ Jane and Rose， ____ going to the farm on foot.
A. as long as；is B. as well as；are C. as long as；are D. as well as；is
3. They travel at full speed by day ____ .
A. and night B. and by night as well as C. as well at night D. as well as by night
4. Mrs Black writes ____ ，if not better than，her husband.
A. as well as B. so well C. so well as D. as well
5. We expect her to do the housework as well ____ after the children.
A. as look B. as looking C. and look D. looking
6、She doesn’t speak ____ her friend，but her written work is excellent.
A. as well as B. as often as C. so much D. as good as
7. Which of the following sentences is right？
A. Both father and as well as mother love me. B. Father as well as mother loves me.
C. Both father as well as mother loves me. D. Not only father but also mother love me.
8. You feel ____ you did yesterday，don’t you？
A. as good as B. as well C. so good D. as well as
9. I’m sure I was right. It is just ____ I didn’t lend him the money.
A. so well B. as well as C. as well D. the same as

二.1. Bob never does his homework_____ Mary. He makes lots of mistakes.
A. so careful as B. as carefully as C. carefully as D. as careful as
2. Now air in our town is ____ than it used to be. Something must be done to it.
A. very good B. much better C. rather than D. even worse
3. I feel __ better than yesterday.
A. more B. very C. the D. far
4. China has a large population than __ in the world.
A. all the countries B. every country C. any country D. any other country
5. This book is __ on the subject.
A. the much best B. much the best C. very much best D. very the best
6. The sick boy is getting __ day by day.
A. worse B. bad C. badly D. worst
7. This necklace looks __ and__ sells__.
A. well, well B. good, nice C. nice, good D. nice, well
8. Doctor Wang ___ heart operation
A. is interested on B. like doing C. does well in D. is good at
9. The population of Shandong is__ than that Sichuan.
A. smaller B. larger C. less D. large
10. I didn’t go shopping yesterday. He didn’t __.
A. so B. either C. too D. neither
11.___ delicious the food is!
A. How B. How a C. What D. What a
12. What animal do like ___ I like all kinds of animals.
A. better B. best C. very D. well
13. Hainan is a very large island. It’s the second__ island in China.
A. large B. larger C. largest D. most large
14. If you want to book a round –trip ticket, you’ll have to pay __ $30.
A. more B. other C. the other D. another
15. A horse is __ than a dog.
A. much heavy B. more heavier C. much heavier D. more heavy
16. Which is __ season in Beijing I think it’s spring.
A. good B. well C. best D. the best
17. Usually Xiao Li spends __ time doing homework than Xiao Chen does.
A. little B less C. few D. fewer
18. I liked to play football when I was young. _______.
A. So he was B. So was he C. So did he D. So he did

二、用所给词的恰当形式填空。
1. Which is _______ (big), the sun, the moon or the earth
2. Which is ______ (beautiful), the black coat or the blue one
3. This mooncake is ____ (cheap) of all.
4. He is _______ (strong) in the class.
5. English is ____ (widely) spoken in the world.



【试题答案】
一、单项填空
（一）1~5 CDDAA 6~9 ABDC
（二）1~5 BDDDB 6~10 ADCBB 11~15 ABCDC. 16~18 DBC
二、用所给词的恰当形式填空
1. the biggest 2. more beautiful 3. the cheapest 4. the strongest 5.the most widely
中考命题解读（一）
（2008 温州）
Most supermarkets in China provided free plastic bags. It was convenient for people to do shoping, but things changed. To protect the environment, supermarkets all over China stopped providing free plastic bags from June 1, 2008. If you don’t want to pay money to buy them, you’ll have to bring your own shopping bags.
What can we use to hold things we buy from shops Students of Qingshan Middle School had some good ideas. One idea was making different kinds of eco-shopping bags. 54 students at that school made their own eco-shopping bags. They held an eco-shopping bag show last Friday afternoon. Many students made the bags with used clothes. They painted pictures like the Olympic rings on them. Some bags made of used materials like used paper, old newspapers. Some were made of eco-materials like bamboo.
A boy student, Wang Lin made his bag with several old newspapers. We asked him whether the bag was strong enough. Wang Lin said it was. “No problem. I took six bottles of water in the bag from the shop to my home yesterday evening. ” he said. “ I think it’s strong enough to hold even ten bottles of water. ”
Fang Yuanyuan, a girl student, had a more traditional way to make her bag—bamboo basket.” It was a hard job,” she said. “With my grandfather’s help, I spent a whole afternoon making it.”
The students also asked their parents and friends to use eco-shopping bags instead of plastic ones. Next Saturday afternoon, the school will hold another eco-shopping bag show to help shops and stores get ideas from the students’ work.
1. The supermarkets all over China stopped providing ________ from June 1, 2008.
A. eco-shopping bags B. plastic baskets C. free plastic bags D. bamboo baskets
2. Wang Lin made his bag with ________.
A. bamboo B. used clothes C. plastic D. old newspapers
3. Why will the hold another eco-shopping bag show
A. To know if the bags are strong enough. B. To show their pictures on the bags.
C. To make money by selling them. D. To give ideas to shops and stores.
4. What is the main idea of the passage
A. People can still use plastic bags
B. Students encourage people to use eco-shopping bags.
C. Students have good ideas to make money.
D. Most supermarkets will go on providing free plastic bags.
答案： CDDB
课 后 测 试 题
Ⅰ.Fill in the blanks with the correct forms of the words
1. Careless drivers are ________ (threaten) to the lives of pedestrians（行人）.
2. The children had a big party to ________ (celebration) their own holiday.
3. We must clean the ________ (lay) of dust on the furniture every day.
4. It is ________ (danger) to run across the street when the yellow traffic light is flashing.
5. The Greenhouse Effect badly ________ (affection) the of nature balance and causes the ________ (destory) of our earth.
Ⅱ. Rewrite the sentences as required
1. It is vital that we should learn English well. (用动词不定式改写,句意不变)
It is vital________ ________ ________ ________ English well.
2. The lights went out because the winds is very strong. (对划线部分提问)
________ ________ the lights ________ ________
3. Mr. Black is as old as Mr. Brown. （保持原句意思）
Mr. Black is ________ ________ ________ ________ Mr. Brown.
4. We don’t know what to do with the rubbish. （改为带宾语从句的复合句）
We don’t know ________ ________ ________ ________ with the rubbish.
5. Without the ozone layer, the sun would burn us up. （改为带条件状语从句的复合句）
________ ________ ________ ________ the ozone layer, the sun would burn us up.
Ⅲ. Reading comprehension
The greenouse effect is the rise in temperature that the Earth experiences because certain gases in the atmosphere (e.g., water vapour[H2O], carbon dioxide [CO2], nitrous oxide [N2O], and methane [CH4]take in energy from the sun. Without these gases, heat would escape back into space and Earth’s average temperature would be about 33°C colder. Because of the way in which they warm our world, these gases are called greenhouse gases.
Have you ever seen a greenhouse？ Most greenhouses look like a small glass house. Greenhouses are used to grow plants, especially in the winter. Greenhouses work by taking in heat from the sun. The glass boards of the greenhouse let in light but keep heat from escaping. This causes the greenhouse to heat up, much like the inside of a car parked in sunlight, and keeps the plants warm enough to live in the winter.
The Earth’s atmosphere is all around us. It is the air that we breathe. Greenhouse gases in the atmosphere act much like the glass boards in a greenhouse. Sunlight enters the Earth’s atmosphere, passing through the blanket of grenhouse gases.As it reaches the Earth’s surface, land and water and biosphere(生物圈) absorb the sunlight’s energy. Once absorbed, this energy is sent back into the atmosphere. Some of the energy passes back into space, but much of it remains trapped in the atmosphere by the greenhouse gases, causing our world to heat up.
The greenhouse effect is important. Without the greenhouse effect, the Earth would not be warm enough for humans to live. But if the greenhouse effect becomes stronger, it could make the Earth warmer than usual. Even a little extra warming may cause problems for humans, plants, and animals.
True or False
1. Carbon dioxide is called the greenhouse gas.
2. Greenhouse gases work as the air in the real greenhouse which is quite warm.
3. Greenhouse gases cause our world to heat up.
4. We’d better get rid of greenhouse effect according to the passage.
5. Much of the energy from the sun is kept in the atmosphere on earth.
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