英语四选一（原句加中文,解释一下为什么选这个答案，有时间可以把每个选项也加上中文，谢谢！）

Question

1.We all know that a desk is made________wood.
A.of B.from C.up of D.from of
2.So many cars' running on the streets will have a great effect_____air pollution.
A.in B.on C.at D.to
3.We______to visit the Bird Net yesterday.
A.allows B.allowed C.is allowed D.were allowed
4.When you get to the top of the mountain,you'll find it______to breathe the air.
A.hard B.harder C.hardest D.the hardest
5.This dictionary mustn't_______from the library because there is only one left.
A.take away B.taken away C.are taken away D.be taken away
6.---The bus is leaving right now,but Mr.Smith hasn't arrived yet.
---Well,he said he______here on time.
A.came B.will be C.would come D.can be
7.The coat I bought last night is too big for me.I'd like to change it for a_______one.
A.small B.large C.nicer D.smaller
8.I like reading,_______I have no time to do so.
A.and B.but C.or D.so
9.They have to work hard______more money for their sick daughter.
A.get B.getting C.to get D.got
10.After bearing the news,he was very angry and went out ______ saying one word.
A.with B.without C.don't D.not
11.---_______is the earth's atmosphere?
---It's 20 miles thick.
A.How far B.How long C.How thick D.How often
12.Plants_______nitrogen to stay alive.
A.depend B.depend on C.depends on D.depends in
13.People and animals can't live without_________.
A.nitrogen B.oxygen C.gas D.atmosphere
14."It's very important to save water."
"I agree with you.I hope______can realize that."
A.somebody B.anybody C.nobody D.everybody
15.We must_______wastes into the water.It's bad for our environment.
A.stop them to put B.stops them putting C.stop them from putting D.stops them from putting

Answer 1

1.We all know that a desk is made____A____wood.我们都知道桌子只用木头做的。made of后面接看得见原材料的材料，比如你可以看出来桌子是木头的。made from后面接看不见原材料的材料，比如橙汁是用橙子做的。橙子的形状等已经和橙汁不一样了，看不出原材料，就用Orange juice is made from oranges.
A.of B.from C.up of D.from of
2.So many cars' running on the streets will have a great effect___B__air pollution.这么多车在街上跑，会对大气污染有很大影响。
A.in B.on 固定搭配 C.at D.to
3.We___D___to visit the Bird Net yesterday.我们昨天被允许参观鸟巢。
A.allows B.allowed C.is allowed 这个选项的助动词用错了，yesterday是昨天，应该用过去式 D.were allowed被动语态
4.When you get to the top of the mountain,you'll find it___B___to breathe the air.当我们达到山顶时，你会发现呼吸更困难了。
A.hard B.harder 比较级 C.hardest D.the hardest是跟没上山顶前比，不能用最高级。最高级起码要有三个东西比较。
5.This dictionary mustn't___D____from the library because there is only one left.这本书不能带出图书馆，应为就只剩下一本了。
A.take away B.taken away C.are taken away D.be taken away MUST后面要接动词原型。
6.---The bus is leaving right now,but Mr.Smith hasn't arrived yet.车马上就要开了，史密斯先生还没到。
---Well,he said he____C__here on time.嗯，他昨天说他会准时来的
A.came B.will be C.would come时态要和前面的对应，除非是真理。例如He said the earth is revolving around the sun.他说地球绕着太阳转。 D.can be
7.The coat I bought last night is too big for me.I'd like to change it for a___D____one.昨天我买的外套太大了，我想换件小的。
A.small 她只是想换件小点儿的，并不代表她穿小号的。也许她有100公斤重呢! B.large C.nicer D.smaller比较级，和上一件比要小一些
8.I like reading,____B___I have no time to do so.我喜欢读书，但是我没时间读。
A.and 和 B.but 但是 C.or 或者 D.so所以
9.They have to work hard___C___more money for their sick daughter.他们只有努力工作去给他们生病的女儿挣钱。
A.get B.getting C.to get 两个动词间要加to D.got
10.After bearing the news,he was very angry and went out ____B__ saying one word.他听到消息后非常生气，一句话没说就出去了。
A.with 有 B.without没有 C.don't D.not
11.---_____C__is the earth's atmosphere?地球的大气层多厚？
---It's 20 miles thick.20英里厚
A.How far 多远 B.How long 多长 C.How thick 多厚 D.How often多经常（问频率）
12.Plants_____B__nitrogen to stay alive.植物依靠氮存活
A.depend B.depend on 固定搭配 C.depends on PLANTS是复数，不用单三式 D.depends in
13.People and animals can't live without___B______.人和动物没有氧气不能生活
A.nitrogen 氮气 B.oxygen 氧气 C.gas 气 D.atmosphere大气层
14."It's very important to save water."节水很重要。
"I agree with you.I hope___D___can realize that."我同意。我希望每个人都认识到这一点。
A.somebody 某个人 B.anybody 任何人，一般用于否定句 C.nobody 没有人 D.everybody每个人
15.We must____C___wastes into the water.It's bad for our environment.我们必须阻止他们把废物放到水里。对环境不好。
A.stop them to put B.stops them putting C.stop them from putting 固定搭配，stop sb from doing sth D.stops them from putting MUST后面用动词原形。

从你提的问题可以看出你是初学者啊！加油！建议你看一下简单的语法书，这样才能把一门语言真正学好。没有语法以后写作很困难的，提升空间小。

我打了这么多字，好辛苦啊!呵呵呵，去休息一下:)

Answer 2

1 A [介词of 是能看出原材料的]
2 B [have effect on 固定词组]
3 D [有yesterday, 所以用过去时，be allowed to do, 固定词组，某某被允许做]
4 A[ it is hard to do 做什么很难]
5 D[must 后面接动词原形，主语是物体，所以用被动式]
6 C 过去将来时
7 D[因为衣服太大了所以要换个小一点的]
8 B[喜欢但是没时间做]
9 C [表示目的]
10 B 因为太生气了所以一句话没说就走了
11 C 为什么答什么
12 B 复数所以用动词原形，depend on 固定词组，依靠
13 B 没有氧气不能活
14 D 希望每个人都能意识到
15 C stop sb from doing sth 阻止某人做某事