牛津版（深圳 广州）英语八年级下册 Unit7 The unknown world 导学案+练习（含答案）
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M4U7 The unknown world
重点词汇：
1. know 知道；明白；了解（knew-known）
知道；熟悉=be familiar with
认识；辨认；区分
知道；了解；懂得
→ known 大家知道的，已知的，知名的 =well-known=famous
unknown
△ get to know=become familiar with 逐渐了解；变得熟悉
△ know about：了解；知道
of：听说过
△ as we know 众所周知
△ be known/famous as… 作为…而出名
for…由于/因…而出名
to sb 为某人所熟知
△ make oneself known to（对…作自我介绍）
e.g. 1）Do you know the answer to the question？
2）How did you him to be the leader？
3）He is always quick to know his friends and enemies. 他已知都很善于辨别敌友
Exx：
(1) --Did Mrs King leave a message？
--Yes，She wanted to know ___B___ this Sunday.
A. who you would go shopping B. if you would go shopping with her
C. that you will go shopping D. when will you go shopping with her
(2) Excuse me，may I ___D___ your name，please？
A. call B. get C. hear D. know
2. sure 确信的；肯定的
当然；的确
△ be sure to do sth：务必/一定做某事
从句：对……有把握/确信
△ make sure to do 确定
从句=make sure of 弄清；查清楚
e.g. 1）I’m sure about the leaving time of the train.
2）I’m sure he is coming=He is sure to come 我确定他一定会来的
3）Be sure to come to my house tomorrow. 明天一定要来我家
4）Make sure that he that he has handed his workbook.
※ sure：“有把握的；确信的”表达人们有一种毫无疑问的看法
certain“确实的，肯定”表达一种肯定存在的事实，涉及一种客观事实只能用certain
Exx：
1）--Would you please lend me your bike？A
A. sure B. No, thanks C. Never mind D. It was a pleasure
2）We are sure that our good wish come true.
我们相信，美好的愿望一定会实现
3. agree 同意 disagree 不同意
→ agreement 协定；协议；合同；契约
同意；一致
△ agree with：与…意见一致（+n/pron/句子）
on：就……达成一致意见
to：同意，提议；计划；方案（不接人）
△ agree to do sth
△ arrive at/come to/make/reach an agreement 达成协议
Exx：
1）I really can’t agree ___B___ you because I didn’t think your plan is good.
A. for B. with C. to D. on
2）It looks like a television. Do you think so？
-Yes，I ___D___.
A. understand B. know C. mean D. agree
4. receive 收到，接到；接受
接见；接待；回应
△ receive a letter from sb 收到某人的来信
※ receive：收到（客观）常与from 连用
accept：接受（主观）
Exx：
1）I was on vacation last week and didn’t receive your fax.
2）The play was very well received.（反响）
5. sometimes 有时；间或
sometime：某个时间（用在过去时和将来时中）
some times：几次；几倍（名词短语）
some time：一段时间（名词短语）
Exx：1）Sometimes the patient cried for the pain.
2）The writer decided to live in Sahara Desert for some time.
3）I’ve been there for some times.
4）I’d like to drop in and see you sometime next week.
6. happen 发生
△ sth happen to sb 某人发生/遇到某事
△ happen to do sth=do sth by accident/chance 碰巧做某事
e.g. 1）Something had happened to Mary.
2）I happened to see him on the street.
※ happen：“偶然，碰巧发生” （多用于客观事物或情况发生）
take place：发生 （无偶然之意，指事先安排的发生，较正式）
occur：发生 （具体事件的发生，虽然有偶然性，但与happen程度比弱）
※：不用于被动语态
Exx：
1）--Wilson hurt his arm yesterday.
-- Really？___D_____
A. I’m terribly sorry B. What’s wrong with him？
C. Who did that？ D. How did that happen？
2）What ___B_____ to her yesterday evening？
A. was happened B. happened C. happening D. happen
7. wake 醒来；唤醒；意识到(woke /waked; waked / woken)
航迹；守夜
awake 醒着的；警觉的 (awoke / awaked; awaked / awoken)
唤起；唤醒；醒来
△ wake up 醒来
△ wake sb up 叫醒某人
Exx:
I didn’t ________ up until I heard the alarm clock.
A. wake B. woke C. awoke D. woken
She ________ up in the middle of an exciting dream.
A. wake B. woke C. awoke D. woken
8. mention 提到；说起；提名；表扬
提到的事；提及
△ mention + n/pron/doing
从句
△ not to mention：不论，更不用说
Don’t mention it：不用客气
e.g. 1）He often mentioned his wife to me.
2）He made no mention of her wishes.
3）She forgot to mention where we should meet.
9. loud 大声的，响亮的，吵闹的
大声地
aloud 出声地；大声地（重在出声，能被人听见，但声音不定很大）
loudly 大声地 quietly（含有喧闹的意味）常与read，think搭配
e.g. 1）He is making such a loud noise that I can’t study here.
2）Don’t speak so loud.
3）They shouted as loudly as they could.
4）Please read aloud.
Exx:
(1) Don’t read ___B_____ in the library.
A. loud B. aloud C. loudly
(2) He answered the question in a ___A____ voice.
A. loud B. aloud C. loudly
10. explore 探测，勘查，探险，探究，仔细查阅
explorationn. 勘探，探险，探索，探查，试探
explorer 探险者，勘探员
△ underwater exploration 水下勘探
△ make further explorations 进一步探索
Exx:
(1) The oceans haven’t yet been fully ____B____.
A. explore B. explored C. explorer
(2) He is an Arctic ___C_____.
A. explore B. explored C. explorer
11. noise：不悦耳的，令人烦恼的嘈杂声，隐含贬义
voice：指人的嗓音，也可指鸟的鸣叫，但不指动物的叫声
sound：指人们能听到的各种声音，无褒贬色彩
Exx:
1）A terrible noise burst through his head. 一声巨响几乎迸裂了他的脑袋
2）There was not a sound in the shop. 店铺内鸦雀无声
3）Her voice chocked with emotion. 她的嗓音激动而哽咽了
4）Out of the forest came the voice of cuckoo. 从树林里传出杜鹃的叫声
12. △ hear sb do sth 听见某人做某事
doing sth 听见某人正在做某事
※ 类似词：see ，listen to
Exx:
(1) Do you hear someone _____C___ at the door？
A. knock B. to knock C. knocking D. knocked
(2) We often hear him _____A___ this song.
A. sings B. to sing C. singing D. sang
13. keep 保留，保存，拿着，饲养（kept, kept）
保存；保持；继续
使…保持，使得
△ keep quiet=keep silence
△ keep a diary 记日记
△ keep away from 不靠近
△ keep a secret 保守秘密
△ keep（on）doing sth 一直做某事
△ keep healthy =keep fit 保持健康
△ keep …down 控制，抑制
△ keep out 不让…进入
△ keep/stop/prevent sb from doing sth 阻止某人做某事
Exx:
1）--How long could I ___A___ your English-Chinese dictionary？
--Only one day，please.
A. keep B. borrow C. lend D. get
2）The Earth is our home. We must ____C__ the land，air and water clean.
A. get B. let C. keep D. take
3）I’m sorry to have kept you ___C___ for almost two hours.
A. wait B. to wait C. waiting
14. frighten 惊吓；使惊吓
→ frightened 惊吓的；害怕的
frightening 令人害怕的；吓人的
△ be frightened of sb/sth 害怕某人/某物
to do sth 害怕做…
从句
△ a frightening dream 一个令人害怕的梦
△ a frightened girl 一个受了惊吓的女孩
e.g. 1）The frightened child is still crying.
2）They frightened the old lady to sign the paper.
3）The little girl was frightened her mother would not come back.
※ frightened 害怕的；受惊的（可表可定）
afraid 害怕的；受惊的（只表不定）
Exx.
(1) The little child was frightened ___A____ the dog.
A. of B. on C. at D. with
(2) The speed of the car was __A_____.
A. frightening B. frightened C. frighten D. frightens
(3) They're frightened of ___B____ power.
A. lose B. losing C. lost D. losed
15. damage 损害，损失
损害，毁坏
△ do/cause damage to 对……造成损害
e.g. 1）The court awarded $5,000 in damages to the injured.
2）Smoking can damage your health.
16. fearn. 恐惧的原因，令人恐惧的事物，忧虑，担心，不安
害怕，恐惧
害怕，忧虑，恐怕，担心
△ full of fear 充满恐惧 in fear
△ for fear 由于害怕；生怕
△ in fear of 担忧，恐怕，为….而担心
e.g. 1）I have a fear that it will rain.
2）I fear（that）my children will catch cold.
17. wonder 想知道，对…感到好奇=want to know
奇迹；奇观
→ wonderful 极好的；奇妙的
△ wonder+句子（宾从）
△ seven wonders of the world
△ no/little/small wonder 并不奇怪；不足为奇；十分正常；难怪
中考：1）The new-designed car is on show now. I wonder __C___.
A. how much it cost B. how much did it cost
C. how much it costs D. how much does it cost
2）-- How was your weekend？
--It was ___D____. I had lots of fun.
A. terrible B. tiring C. bad D. wonderful
18. terrible 可怕的；很糟的；极坏的
terribly 可怕地，糟得很
e.g. 1）They serve terrible food at that restaurant.
2）He played terribly.
中考：--Mum，the Chinese medicine tastes so ____C____. I don’t want to take it.
--But，dear，it is good for you.
A. good B. terribly C. terrible D. well
19. discover 发现；发觉（表示发现已存在的东西，新的科学真理，新区域）
find：发现；找到（指对某种事物的追求，也指找到丢失的事物）
invent 发明（通过认识和实践创造出前所未有的事物）
Exx.
(1) Columbus ___A___ America.
A. discovered B. found C. invent D. invented
(2) He __B____ his wallet at last.
A. discovered B. found C. invent D. invented
(3) Who ____D__ the telephone.
A. discovered B. found C. invent D. invented
20. refuse 拒绝
△ refuse sb sth
to do sth
※ refuse：后接双宾语，各词或不定式
reject：用于正式场合，如外交或商业条款之类，另外还有“抛弃，剔除”之义，后
常接名词
e.g. She can’t refuse him anything.
Exx.
(1) --I never thought she would ___A___ my invitation to the concert.
--She would feel sorry for missing the concert someday.
A. refuse B. suppose C. return D. remind
(2) He refused ___A___ me go there.
A. to let B. let C. letting D. lets
21. believe 相信；认为
△ believe in sb 相信某人
sb 相信某人（所说的话是真的）
※ 后接否定的宾语从句时，通常将否定转移到主句上（主语为第一人称时）反义疑问句
与从句一致
否定转移（且主语为第一人称I/We时）口诀：认、期、猜想、相信有二假
e.g. I believe him，but I can’t believe in him.
Exx：The passenger told the police he couldn’t believe __D____ at first.
A. what does the captain say B. what the captain says
C. what did the captain say D. what the captain said
22. spread 伸展；传播（spread-spread）
△ spread oneself 舒展身体，伸展四肢
△ spread one’s wings 展开翅膀；开展做某事
△ spread out 散开；伸展；延伸
Exx. 1）The news spread quickly.
2）The news spread as soon as it happened.
23. with+宾语+宾补（复合结构：作方式状语，原因状语，时间状语，伴随状语，定语）
△ with+宾语+ 介短
done
doing /being done
to do
adv
adj
e.g. 1）They walked to the fields with basketball full of seeds on their shoulders.
2）He stood for an instant with his hand still raised.
3）The meeting ended with all singing the Internationable.
4）With nothing to do，I went out for a walk.
5）He was working there with only a shirt on.
6）He used to sleep with the windows open.
24. mark 记号；痕迹；斑点；分数；符号；商标
△ high/low/full marks
△ marks on a dress 礼服上的污渍
e.g. 1）Put a mark on it and you’ll remember.
2）His feet left dirty marks all over the floor.
25. choose（chose，chosen）选择；选定；甘愿
→ choicen. 选择；挑选；入选者；选择机会；选择能力
△ choose to do sth 愿意做某事
△ can’t choose but do sth 别无选择只好做某事
△ choose sb/sth as +名词 选择某人/某物作为…
△ have no choice but to do sth 除了做某事别无选择
Exx：1）--Oh，my God！We have missed the last bus. What shall we do？
--I’m afraid we have no ___A____ but to take a taxi.
A. choice B. decision C. reason D. information
2）--I don’t think Kate saw me. She ____D___ a sweater for her sister.
A. has just chosen B. had just chosen
C. is choosing D. was just choosing
26. explain 解释；说明
→ explanationn. 解释；说明；辩解；辩说
explainable 可说明的；可解释的
△ explain oneself 解释；交代清楚
△ explain sth to sb 不能说 explain sb sth
e.g. 1）Can you explain to me how this machine works.
2）He gave an explanation of how sound travels in water.
Exx：Few students can understand the sentence until it ___B____ twice or three times.
A. explains B. is explained
C. will be explained D. has explained
27. curiosityn. 好奇；好奇心
curious 好奇的
curiously 好奇地
△ arouse sb’s ~ about sth 引起某人对某物的好奇心
△ be curious about 对…好奇
to do 很想……
Exx.
(1) The child showed a healthy ___C____.
A. curious B. curiously C. curiosity D. curiously
(2) People have always been ___A____ about exactly how life on earth began.
A. curious B. curiously C. curiosity D. curiously
28. incident 事件（小事件；事端；改变）
accidentn. 意外事故/件；偶然；意外
event 重大事件，体育赛事
matter 重要，要紧事（表涉及人们利益和命运的事）
affair 事件（用于描述严肃认真或平淡无奇的事，与人的生活有密切联系）
29. pleased 高兴的
△ be pleased with oneself 得意，洋洋自得
△ be pleased to do 乐意做…
with/at/about/by 对……高兴/满意
△ pleasant voice
e.g. He will be pleased to help you.
※ pleased 高兴的；喜悦的 修饰人
pleasant“愉快的”特指使人心满意足的状态，通常用具体的东西，修饰物
pleasing“愉快的”bipleasant 稍弱，表示宁静，满意，令人满足之意
pleasuren. 愉快；高兴；满足；乐事；趣事
△ with pleasure 十分乐意
It’s a/my pleasure 别客气
Exx：1）The smile on her face shows that she is ___B____ her work.
A. worried about B. pleased with C. sorry for D. afraid of
2）--Would you do me a favor and pass on my thanks to Lily？
--____B____
A. Yes，that’s right B. With pleasure C. It doesn’t matter D. No trouble
30. because：因为（表直接原，通常是听话人所不知道的）
since：由于，既然（侧重主句，从句表示显然的或已为人知的理由）
as：由于；鉴于（表示双方已知的事实或显而易见的原因）
Exx：1）I stayed at home because it rained.
2）Since everyone is here，let’s start.
3）We all like her as she is kind.
8B Unit 7 The unknown world
必会短语
1 未知的世界 the unknown world
2 众所周知 as we know= it's kown to us all
3 太空船船长 a spaceship caption
4 给出指令 give instructions
5 当然 Sure=Certainly.= Of course
6 毫无疑问地 for sure
7 务必；确保 make sure
8 一定的；肯定的 be sure
9 同意做某事 agree to do sth
10 同意某人 agree with
11 同意某事 agree to
12 就……达成一致 agree on
13 达成协议 make/ reach/ come to/ arrive at an agreement
14 信任某人 believe in sb.
15 不同意 disagree with
16 叫醒；唤醒 wake up
17 乐于做某事 be pleased to do sth
18 在午夜 at midnight
19 向某人提起某物 mention sth to sb.
20 提起做某事 mention doing sth
21 不用谢 Don’t mention it.
22 对……造成损坏 do/ cause damage to
23 由于 because of
24 恐惧地；害怕地 in fear
25 想要知道 wonder= want to know
26 拒绝做某事 refuse to do sth
28 降落场 a landing site
29 ……的原因 the reason for
30 尽快 as soon as possible
课文再现
完形填空
(A)
Aliens arrive
Tina woke up1 __________ midnight. She looked out of her window and saw a yellow light in the sky. It suddenly 2__________ towards the ground. She heard a noise and saw a red light.
The next morning, Tina3 __________ it to her brother Tom. “I'm sure something 4__________ in the forest near the hills as I heard a loud noise last night,” she said.
“Let’s5 __________ after school.”
At 6 p.m., Tina and Tom reach the forest. They heard some voices6 __________ a strange language, so they hid behind some bushes and kept quiet. Then they saw an alien! It was tall, with a round head and a silver body. It 7__________ next to a long spaceship. The spaceship was damaged because of a crash.
The children were 8__________. Suddenly , another alien appeared from the bushes in front of them. It discovered them and made a terrible noise! The children ran away 9 fear.
The next morning, Tina and Tom told their parents told the strange creatures. “They were very ugly. They had some hair, but they didn’t have any feathers,” said Tina.
“There was something written on the spaceship,” said Tom. “It looked like this. I wonder what it means.” He drew some lines on a piece of paper.
But dad said, “10__________ no one else saw these aliens, I refuse to believe you. Now go to school!”
The children spread their wings and flew to school together.
Dad looked at the piece of paper with the strange marks on it. “It looks strange,” he said, as he looked at the word “EARTH”.
( B )1. A. in B. at C. on D. /
( A )2. A. dived B. climbed C.swam D. run
( C )3. A. told B.spoken C. mentioned D. read
( B )4. A. stayed B.landed C.sat D. lied
( B )5. A explored B. explore C. found D. exploration
( A )6. A. speaking B. speak C. spoken D. is speaking
( D )7. A.is standing B. stand C.stood D was standing
( C )8. A. happy B. frightening C. frightened D.frighten ( A )9. A. in B.for C. on D./
( D )10. A.and B. so C.for D.since
综合阅读
(B)
UFO
Many people say they have seen UFOs. Here is one famous story. It is called Roswell Incident and it happened in the US in 1947.
Person A (name not given): My wife and I were sitting outside (E) it was warm night.
(A)Suddenly we saw sometimes very bright flying through the sky.
Person B (William Braze,a farmer): I found some pieces of strange metal on my farm. I called the army . Major Marcel came and collected the pieces . He told me not to talk to anyone about this .
Person C (Major Marcel): I went and collected the pieces . I gave them to an army expert .He said the pieces came from a weather balloon. However, since I have not never seen this(B) kind of metal before , I think this was a lie.
Person D (name not given):My parents and I were in the(C) countryside .（D）突然我们看到山的一面有一一个银色的宇宙飞船. There were the bodies of three aliens on the grass .Then some soldiers came and told us to leave.
So what is the truth
Perhaps some or all of the people lied.
Perhaps a US rocket crashed and people through it had come from space.
Perhaps an alien spaceship really crashed in Roswell.
1.将A 处译成汉语 突然我们看到非常明亮的东西在天空中飞行
2.将D处译成英语 Suddenly we saw a silver spaceship on the other side of the hill.
3.写出B.C处同义词： type country
4.在E处填入适当的词because
5.what did the US army expert say about the pieces of metal .
He said the pieces came from a weather balloon.
单元测试 分数：____________
一．单项选择
（ B ）1.Her hope _________ a gold medal in the next Olympic games.
A.to win B.is to win C.winning D.will win
（ B ）2.--How long may I _____your book
--For a week. Bt you mustn’t_____________ it to others.
A. borrow , lend B. keep,lend C. lend, borrow D. keep ,borrow
（ B ）3.--It’s too hot .Would you mind ________ the door
--____________.Please do it now.
A.to open,OK B.my opening,Certainly not
C.opening,Of course D.to open,Good idea
（ C ）4.--We haven’t heard from Jane for a long time.
--What do you suppose _________ to her
A. was happening B. to happen
C. has happened D. having happened
（ A ）5.He took off his coat _____________ he felt hot.
because B .as C. if D. since
（ A ）6.__________ you’ve got a chance, you might as well make full use of it.
Since B. After C .Although D.As soon as
（ D ）7.A man cannot smile like a child,______ a child smiles with his eyes ,while a man smiles with his lips alone.
so B. but C. and D. for
（ C ）8.I didn’t go out at night _______ I was afraid.
A.Since B. For C. Because D. so
（ B ）9.___________ it was raining, _____ we stayed at home.
A.Because ,so B. Because,/ C. Because ,for D .If .so
（ C ）10.I said nothing about it ______ his wife was there.
A.since B.so that C.because D.unless
（ B ）11.______ the weather is so bad,we have to delay our journey.
A.Befor B.Since C.Till D.After
（ B ）12._______ it is raining,you’d better take a taxi.
A.Before B.AS C.Till D.After
（ C ）13.You shouldn’t get angry just ______ some people speak ill of you.
A.since B.so that C.because D.unless
（ B ）14.______ you are here,you’d better stay.
A.Before B.Since C.Till D.after
（ B ）15.I hurried ______ I wouldn’t be late for class.
A.since B.so that C.as if D.unless
（ B ）16.The police searched for the _____ boy all around the city,but they didn’t find him.
A.miss B.lost C.lose D.missing
（ C ）17.--Must I hand in the composition tomorrow morning
--No,you ____.
A.mustn’t B.may not C.needn’t D.can’t
（ D ）18.They ______ touch with each other because of the war.
A.missed B.failed C.lose D.lost
（ C ）19.Oh.I______ my keys at home.
A.forgot B.lost C.left D.missed
（ D ）20.We landed _____ the airport in Chicago.
A.on B.in C./ D.at
（ C ）21.--Why didmn’t Betty come to school yesterday
--_____she as ill.
A.As B.since C.Because D.Beause
（ B ）22.That film was so _____ that most of the audience kept screaming in fear while watching it last night.
A.exciting B.frightening C.boring D.amazing
（ A ）23--I wonder _____ without water.
--About a week.
A.how long man can B.how long can man live
C.when man can live D.when can man live
（ B ）24.She had a stomachache ______she ate something bad.
A.so B.because C.or D.although
（ D ）25.The man was not ______ when he heard the _____ words.
A.frightening,frightening B.frightened,frightened
C.frightening,frightened D.frightened,frightening
二．用括号里所给词的适当形式填空
1.I haven’t been to New York and neither has my sister.
2. I can’t swim and neither can Mary.
3.My sister often calls me and so does my brother.
4.If you do not go shopping, neither shall I .
5.Cancer kills thousands of (thousand )people every year.
6.You will receive ( receive )a reply within seven days.
7.This creature( create ) had the largest eyes in the whole animal kingdom .
8.It's frightening (frighten) to think it may happen again.
9.I hope you will agree with (agree)me.
10.Drinking and smoking can damage (damage) your health.
12You will find that I won’t be frightened (frighten)easily.
13.We hope college life will help him to spread (spread)his wings a bit.
14With a lot work to do (do) ,he was allowed to go out.
15.The explorer (explore) told the boys about his adventures in the Arctic.
16.You’ve already damaged (damage)my bicycles. You must buy me a new one .
17.The radio spread (spread) the news as soon as the accident happened.
18.New scientific discoveries (discover) are being made every day .
19. I am terribly (terrible) sorry for keeping you waiting for so long .
20.I can always lose myself (I) in a good book.
21.The police are trying their best to rescue rescue the boy.
22.Peter hurt ( hurt )himself while he was shaving his beared.
23.Our Chinese astronauts have succeed in landing (land )on the Moon.
24.They plan to get married (marry)in summer.
25.He dived from the bridge to rescue (rescue)the downing child .
三.句型转换
1.I wonder how I get to the TV factory. (同义句)
I wonder how to get to the TV factory.
2.There are no creatures on it . (同义句)
There are not any creatures on it.
3.They were frightened ,so they ran away. (同义句)
They ran away in fear.
4.The spaceship was damaged because of a crash .(就划线部分提问)
Why was the spaceship damaged
5.I believe they have finished their work, haven’t they (反义疑问句)
6.I don’t think he cares , does he (反义疑问句)
7.He thinks you two have met before ,doesn’t he
8.You think I am wrong, don’t you
9.I suppose he cares much about you .(变为否定句)
I don’t suppose he cares much about you .
10.He lay in bed because he had caught a bad cold. (同义句)
He lay in bed because of a bad cold
语法加油站
原因状语从句
定义 ：原因状语从句是用来表示动作或状态发生的原因或理由的分句结构，可位于主句之前、之后或插在主句之间。
常见的引导原因状语从句的连词：because\since\as\now(that)
（1）Because 引导的原因状语从句语气最强，通常表示说话人认为这种原因是听话人所不知道的，因此在回答why引出的问句时，只能用because。
（2）since语气稍弱，强调已知的事实。
（3）as语气最弱，表示不言而喻，显而易见的原因和理由。
例：—Why are you sleeping outside on the porch tonight
—Because our air conditioner isn’t working.
Since you insist,I will reconsider the matter.
As I haven’t seen the film,I can’t tell you what I think of it.
（拓展）（1）for 是并列连词，后也可跟原因，但引导的不是原因状语从句，而是并列句，引出的原因较间接，似乎是事后所想到的补充解释的理由。
例：It must have rained last night, for the ground is wet this morning.
昨晚一定下雨了，因为今天早上地都是湿的。（表示推断，不用because）
because of 与because的用法
because of 介词短语，意思是“因为；由于”，后接名词作介词宾语
because 是连词 意思是 因为;由于, 后接句子
一般情况下because 与 because of 是可以相互转换的
e.g.：All the flights to London have been delayed because of the thick fog.
= All the flights to London have been delayed because it is fog thickly .
e.g. They went to the forest because of their curiosity .
= They went to the forest because of they are curious.
1. I hate travelling by air ______ you usually have to wait for hours before the plane takes off.
A. because B. though C. until D. unless
2. I’ll go to visit my aunt in England ______ the summer holidays start..
A. while B. since. C. until D. as soon as
3. It will be hard for us to get up in the morning if we ______ to bed too late.
A. go B. went C. will go D. have gone
4. ______ I got back, I found my mother cooking for me.
A. When B. Before C. Since D. Although
5. One important aim of our school is to prepare us for the future___________ we can face all the challenges with confidence.
A. so far B. so that C. even if D. if only
6. -- Do you know if he to play football with us
-- I think he will come if he free tomorrow.
A. comes, is B. comes, will be
C. will come, is D. will come, will be
7. -- What are you doing this weekend
-- We are going hiking if it______ .
A. will rain B. doesn’t rain C. rains
8. If she _______ tomorrow, I’ll call you.
A. come B. comes C. will come D. came
9.–Come and join us, Ben!
--I’m afraid I can’t. I’m too busy now. If I ______ time, I would certainly go.
A. had B. will have C. have had D. have
10. You can use English or Chinese ______ you travel in Singapore.
A. whether B. whatever C. where D. if
11. ______ bad weather stops me, I can do outdoor sports every day.
A. When B. Because C. If D. Unless
12. Boys and girls, calm down and focus on the test paper ______ you begin to think about the answers. Be confident. You can do it.
A. as if B. as soon as C. although
13. Kate’s dad is getting old. She will go back home to see him ______ it is convenient.
A. because B. whenever C. although D. unless
14. If Nancy ______ the exam, she will go to Australia for English study.
A. pass B. passed C. passes D. will pass
15. Henry will give us a report as soon as he ______.
A. arrives B. arrived C. is arriving D. will arrive
16. Dad, please tell me when Mum ___. I miss her very much.
She will return when she ___ her task. And she will bring a nice present for you.
A. returns; finishes C. will return; finishes B. returns; will finish D. will return; will finish
状语从句答案：
1-5ADAAB 6-10CBBAD 11-16DBBCAC
重点词汇：
1. know
知道；熟悉=be familiar with
认识；辨认；区分
→ known
unknown
△ get to know=become familiar with 逐渐了解；变得熟悉
△ know about：了解；知道
of：听说过
△ as we know 众所周知
△ be known/famous as… 作为…而出名
for…由于/因…而出名
to sb 为某人所熟知
△ make oneself known to（对…作自我介绍）
e.g. 1）Do you know the answer to the question？
2）How did you him to be the leader？
3）He is always quick to know his friends and enemies. 他已知都很善于辨别敌友
Exx：
(1) --Did Mrs King leave a message？
--Yes，She wanted to know ___B___ this Sunday.
A. who you would go shopping B. if you would go shopping with her
C. that you will go shopping D. when will you go shopping with her
(2) Excuse me，may I ___D___ your name，please？
A. call B. get C. hear D. know
2. sure
△ be sure to do sth：务必/一定做某事
从句：对……有把握/确信
△ make sure to do 确定
从句=make sure of 弄清；查清楚
e.g. 1）I’m sure about the leaving time of the train.
2）I’m sure he is coming=He is sure to come 我确定他一定会来的
3）Be sure to come to my house tomorrow. 明天一定要来我家
4）Make sure that he that he has handed his workbook.
※ sure：“有把握的；确信的”表达人们有一种毫无疑问的看法
certain“确实的，肯定”表达一种肯定存在的事实，涉及一种客观事实只能用certain
Exx：
1）--Would you please lend me your bike？A
A. sure B. No, thanks C. Never mind D. It was a pleasure
2）We are sure that our good wish come true.
我们相信，美好的愿望一定会实现
3. agree
→ agreement
△ agree with：与…意见一致（+n/pron/句子）
on：就……达成一致意见
to：同意，提议；计划；方案（不接人）
△ agree to do sth
△ arrive at/come to/make/reach an agreement 达成协议
Exx：
1）I really can’t agree ___B___ you because I didn’t think your plan is good.
A. for B. with C. to D. on
2）It looks like a television. Do you think so？
-Yes，I ___D___.
A. understand B. know C. mean D. agree
4. receive
接见；接待；回应
△ receive a letter from sb 收到某人的来信
※ receive：收到（客观）常与from 连用
accept：接受（主观）
Exx：
1）I was on vacation last week and didn’t receive your fax.
2）The play was very well received.（反响）
5. sometimes
sometime：某个时间（用在过去时和将来时中）
some times：几次；几倍（名词短语）
some time：一段时间（名词短语）
Exx：1）Sometimes the patient cried for the pain.
2）The writer decided to live in Sahara Desert for some time.
3）I’ve been there for some times.
4）I’d like to drop in and see you sometime next week.
6. happen
△ sth happen to sb 某人发生/遇到某事
△ happen to do sth=do sth by accident/chance 碰巧做某事
e.g. 1）Something had happened to Mary.
2）I happened to see him on the street.
※ happen：“偶然，碰巧发生” （多用于客观事物或情况发生）
take place：发生 （无偶然之意，指事先安排的发生，较正式）
occur：发生 （具体事件的发生，虽然有偶然性，但与happen程度比弱）
※：不用于被动语态
Exx：
1）--Wilson hurt his arm yesterday.
-- Really？___D_____
A. I’m terribly sorry B. What’s wrong with him？
C. Who did that？ D. How did that happen？
2）What ___B_____ to her yesterday evening？
A. was happened B. happened C. happening D. happen
7. wake
awake
△ wake up 醒来
△ wake sb up 叫醒某人
Exx:
I didn’t ________ up until I heard the alarm clock.
A. wake B. woke C. awoke D. woken
She ________ up in the middle of an exciting dream.
A. wake B. woke C. awoke D. woken
8. mention
△ mention + n/pron/doing
从句
△ not to mention：不论，更不用说
Don’t mention it：不用客气
e.g. 1）He often mentioned his wife to me.
2）He made no mention of her wishes.
3）She forgot to mention where we should meet.
9. loud
aloud
loudly
e.g. 1）He is making such a loud noise that I can’t study here.
2）Don’t speak so loud.
3）They shouted as loudly as they could.
4）Please read aloud.
Exx:
(1) Don’t read ___B_____ in the library.
A. loud B. aloud C. loudly
(2) He answered the question in a ___A____ voice.
A. loud B. aloud C. loudly
10. explore
exploration
explorer 探险者，勘探员
△ underwater exploration 水下勘探
△ make further explorations 进一步探索
Exx:
(1) The oceans haven’t yet been fully ____B____.
A. explore B. explored C. explorer
(2) He is an Arctic ___C_____.
A. explore B. explored C. explorer
11. noise：不悦耳的，令人烦恼的嘈杂声，隐含贬义
voice：指人的嗓音，也可指鸟的鸣叫，但不指动物的叫声
sound：指人们能听到的各种声音，无褒贬色彩
Exx:
1）A terrible noise burst through his head. 一声巨响几乎迸裂了他的脑袋
2）There was not a sound in the shop. 店铺内鸦雀无声
3）Her voice chocked with emotion. 她的嗓音激动而哽咽了
4）Out of the forest came the voice of cuckoo. 从树林里传出杜鹃的叫声
12. △ hear sb do sth 听见某人做某事
doing sth 听见某人正在做某事
※ 类似词：see ，listen to
Exx:
(1) Do you hear someone _____C___ at the door？
A. knock B. to knock C. knocking D. knocked
(2) We often hear him _____A___ this song.
A. sings B. to sing C. singing D. sang
13. keep
△ keep quiet=keep silence
△ keep a diary 记日记
△ keep away from 不靠近
△ keep a secret 保守秘密
△ keep（on）doing sth 一直做某事
△ keep healthy =keep fit 保持健康
△ keep …down 控制，抑制
△ keep out 不让…进入
△ keep/stop/prevent sb from doing sth 阻止某人做某事
Exx:
1）--How long could I ___A___ your English-Chinese dictionary？
--Only one day，please.
A. keep B. borrow C. lend D. get
2）The Earth is our home. We must ____C__ the land，air and water clean.
A. get B. let C. keep D. take
3）I’m sorry to have kept you ___C___ for almost two hours.
A. wait B. to wait C. waiting
14. frighten
→ frightened
frightening
△ be frightened of sb/sth 害怕某人/某物
to do sth 害怕做…
从句
△ a frightening dream 一个令人害怕的梦
△ a frightened girl 一个受了惊吓的女孩
e.g. 1）The frightened child is still crying.
2）They frightened the old lady to sign the paper.
3）The little girl was frightened her mother would not come back.
※ frightened
afraid
Exx.
(1) The little child was frightened ___A____ the dog.
A. of B. on C. at D. with
(2) The speed of the car was __A_____.
A. frightening B. frightened C. frighten D. frightens
(3) They're frightened of ___B____ power.
A. lose B. losing C. lost D. losed
15. damage
△ do/cause damage to 对……造成损害
e.g. 1）The court awarded $5,000 in damages to the injured.
2）Smoking can damage your health.
16. fear
害怕，恐惧
△ full of fear 充满恐惧 in fear
△ for fear 由于害怕；生怕
△ in fear of 担忧，恐怕，为….而担心
e.g. 1）I have a fear that it will rain.
2）I fear（that）my children will catch cold.
17. wonder
→ wonderful
△ wonder+句子（宾从）
△ seven wonders of the world
△ no/little/small wonder 并不奇怪；不足为奇；十分正常；难怪
中考：1）The new-designed car is on show now. I wonder __C___.
A. how much it cost B. how much did it cost
C. how much it costs D. how much does it cost
2）-- How was your weekend？
--It was ___D____. I had lots of fun.
A. terrible B. tiring C. bad D. wonderful
18. terrible
terribly
e.g. 1）They serve terrible food at that restaurant.
2）He played terribly.
中考：--Mum，the Chinese medicine tastes so ____C____. I don’t want to take it.
--But，dear，it is good for you.
A. good B. terribly C. terrible D. well
19. discover 发现；发觉（表示发现已存在的东西，新的科学真理，新区域）
find：发现；找到（指对某种事物的追求，也指找到丢失的事物）
invent 发明（通过认识和实践创造出前所未有的事物）
Exx.
(1) Columbus ___A___ America.
A. discovered B. found C. invent D. invented
(2) He __B____ his wallet at last.
A. discovered B. found C. invent D. invented
(3) Who ____D__ the telephone.
A. discovered B. found C. invent D. invented
20. refuse
△ refuse sb sth
to do sth
※ refuse：后接双宾语，各词或不定式
reject：用于正式场合，如外交或商业条款之类，另外还有“抛弃，剔除”之义，后
常接名词
e.g. She can’t refuse him anything.
Exx.
(1) --I never thought she would ___A___ my invitation to the concert.
--She would feel sorry for missing the concert someday.
A. refuse B. suppose C. return D. remind
(2) He refused ___A___ me go there.
A. to let B. let C. letting D. lets
21. believe
△ believe in sb 相信某人
sb 相信某人（所说的话是真的）
※ 后接否定的宾语从句时，通常将否定转移到主句上（主语为第一人称时）反义疑问句
与从句一致
否定转移（且主语为第一人称I/We时）口诀：认、期、猜想、相信有二假
e.g. I believe him，but I can’t believe in him.
Exx：The passenger told the police he couldn’t believe __D____ at first.
A. what does the captain say B. what the captain says
C. what did the captain say D. what the captain said
22. spread
△ spread oneself 舒展身体，伸展四肢
△ spread one’s wings 展开翅膀；开展做某事
△ spread out 散开；伸展；延伸
Exx. 1）The news spread quickly.
2）The news spread as soon as it happened.
23. with+宾语+宾补（复合结构：作方式状语，原因状语，时间状语，伴随状语，定语）
△ with+宾语+ 介短
done
doing /being done
to do
adv
adj
e.g. 1）They walked to the fields with basketball full of seeds on their shoulders.
2）He stood for an instant with his hand still raised.
3）The meeting ended with all singing the Internationable.
4）With nothing to do，I went out for a walk.
5）He was working there with only a shirt on.
6）He used to sleep with the windows open.
24. mark
△ high/low/full marks
△ marks on a dress 礼服上的污渍
e.g. 1）Put a mark on it and you’ll remember.
2）His feet left dirty marks all over the floor.
25. choose
→ choice
△ choose to do sth 愿意做某事
△ can’t choose but do sth 别无选择只好做某事
△ choose sb/sth as +名词 选择某人/某物作为…
△ have no choice but to do sth 除了做某事别无选择
Exx：1）--Oh，my God！We have missed the last bus. What shall we do？
--I’m afraid we have no ___A____ but to take a taxi.
A. choice B. decision C. reason D. information
2）--I don’t think Kate saw me. She ____D___ a sweater for her sister.
A. has just chosen B. had just chosen
C. is choosing D. was just choosing
26. explain
→ explanation
explainable
△ explain oneself 解释；交代清楚
△ explain sth to sb 不能说 explain sb sth
e.g. 1）Can you explain to me how this machine works.
2）He gave an explanation of how sound travels in water.
Exx：Few students can understand the sentence until it ___B____ twice or three times.
A. explains B. is explained
C. will be explained D. has explained
27. curiosity
curious
curiously
△ arouse sb’s ~ about sth 引起某人对某物的好奇心
△ be curious about 对…好奇
to do 很想……
Exx.
(1) The child showed a healthy ___C____.
A. curious B. curiously C. curiosity D. curiously
(2) People have always been ___A____ about exactly how life on earth began.
A. curious B. curiously C. curiosity D. curiously
28. incident
accident
event
matter
affair
29. pleased
△ be pleased with oneself 得意，洋洋自得
△ be pleased to do 乐意做…
with/at/about/by 对……高兴/满意
△ pleasant voice
e.g. He will be pleased to help you.
※ pleased
pleasant
pleasing
pleasure
△ with pleasure 十分乐意
It’s a/my pleasure 别客气
Exx：1）The smile on her face shows that she is ___B____ her work.
A. worried about B. pleased with C. sorry for D. afraid of
2）--Would you do me a favor and pass on my thanks to Lily？
--____B____
A. Yes，that’s right B. With pleasure C. It doesn’t matter D. No trouble
30. because：因为（表直接原，通常是听话人所不知道的）
since：由于，既然（侧重主句，从句表示显然的或已为人知的理由）
as：由于；鉴于（表示双方已知的事实或显而易见的原因）
Exx：1）I stayed at home because it rained.
2）Since everyone is here，let’s start.
3）We all like her as she is kind.
8B Unit 7 The unknown world
必会短语
1 未知的世界 the unknown world
2 众所周知 as we know= it's kown to us all
3 太空船船长 a spaceship caption
4 给出指令 give instructions
5 当然 Sure=Certainly.= Of course
6 毫无疑问地 for sure
7 务必；确保 make sure
8 一定的；肯定的 be sure
9 同意做某事 agree to do sth
10 同意某人 agree with
11 同意某事 agree to
12 就……达成一致 agree on
13 达成协议 make/ reach/ come to/ arrive at an agreement
14 信任某人 believe in sb.
15 不同意 disagree with
16 叫醒；唤醒 wake up
17 乐于做某事 be pleased to do sth
18 在午夜 at midnight
19 向某人提起某物 mention sth to sb.
20 提起做某事 mention doing sth
21 不用谢 Don’t mention it.
22 对……造成损坏 do/ cause damage to
23 由于 because of
24 恐惧地；害怕地 in fear
25 想要知道 wonder= want to know
26 拒绝做某事 refuse to do sth
28 降落场 a landing site
29 ……的原因 the reason for
30 尽快 as soon as possible
课文再现
完形填空
(A)
Aliens arrive
Tina woke up1 __________ midnight. She looked out of her window and saw a yellow light in the sky. It suddenly 2__________ towards the ground. She heard a noise and saw a red light.
The next morning, Tina3 __________ it to her brother Tom. “I'm sure something 4__________ in the forest near the hills as I heard a loud noise last night,” she said.
“Let’s5 __________ after school.”
At 6 p.m., Tina and Tom reach the forest. They heard some voices6 __________ a strange language, so they hid behind some bushes and kept quiet. Then they saw an alien! It was tall, with a round head and a silver body. It 7__________ next to a long spaceship. The spaceship was damaged because of a crash.
The children were 8__________. Suddenly , another alien appeared from the bushes in front of them. It discovered them and made a terrible noise! The children ran away 9 fear.
The next morning, Tina and Tom told their parents told the strange creatures. “They were very ugly. They had some hair, but they didn’t have any feathers,” said Tina.
“There was something written on the spaceship,” said Tom. “It looked like this. I wonder what it means.” He drew some lines on a piece of paper.
But dad said, “10__________ no one else saw these aliens, I refuse to believe you. Now go to school!”
The children spread their wings and flew to school together.
Dad looked at the piece of paper with the strange marks on it. “It looks strange,” he said, as he looked at the word “EARTH”.
( B )1. A. in B. at C. on D. /
( A )2. A. dived B. climbed C.swam D. run
( C )3. A. told B.spoken C. mentioned D. read
( B )4. A. stayed B.landed C.sat D. lied
( B )5. A explored B. explore C. found D. exploration
( A )6. A. speaking B. speak C. spoken D. is speaking
( D )7. A.is standing B. stand C.stood D was standing
( C )8. A. happy B. frightening C. frightened D.frighten ( A )9. A. in B.for C. on D./
( D )10. A.and B. so C.for D.since
综合阅读
(B)
UFO
Many people say they have seen UFOs. Here is one famous story. It is called Roswell Incident and it happened in the US in 1947.
Person A (name not given): My wife and I were sitting outside (E) it was warm night.
(A)Suddenly we saw sometimes very bright flying through the sky.
Person B (William Braze,a farmer): I found some pieces of strange metal on my farm. I called the army . Major Marcel came and collected the pieces . He told me not to talk to anyone about this .
Person C (Major Marcel): I went and collected the pieces . I gave them to an army expert .He said the pieces came from a weather balloon. However, since I have not never seen this(B) kind of metal before , I think this was a lie.
Person D (name not given):My parents and I were in the(C) countryside .（D）突然我们看到山的一面有一一个银色的宇宙飞船. There were the bodies of three aliens on the grass .Then some soldiers came and told us to leave.
So what is the truth
Perhaps some or all of the people lied.
Perhaps a US rocket crashed and people through it had come from space.
Perhaps an alien spaceship really crashed in Roswell.
1.将A 处译成汉语 突然我们看到非常明亮的东西在天空中飞行
2.将D处译成英语 Suddenly we saw a silver spaceship on the other side of the hill.
3.写出B.C处同义词： type country
4.在E处填入适当的词because
5.what did the US army expert say about the pieces of metal .
He said the pieces came from a weather balloon.
单元测试 分数：____________
一．单项选择
（ B ）1.Her hope _________ a gold medal in the next Olympic games.
A.to win B.is to win C.winning D.will win
（ B ）2.--How long may I _____your book
--For a week. Bt you mustn’t_____________ it to others.
A. borrow , lend B. keep,lend C. lend, borrow D. keep ,borrow
（ B ）3.--It’s too hot .Would you mind ________ the door
--____________.Please do it now.
A.to open,OK B.my opening,Certainly not
C.opening,Of course D.to open,Good idea
（ C ）4.--We haven’t heard from Jane for a long time.
--What do you suppose _________ to her
A. was happening B. to happen
C. has happened D. having happened
（ A ）5.He took off his coat _____________ he felt hot.
because B .as C. if D. since
（ A ）6.__________ you’ve got a chance, you might as well make full use of it.
Since B. After C .Although D.As soon as
（ D ）7.A man cannot smile like a child,______ a child smiles with his eyes ,while a man smiles with his lips alone.
so B. but C. and D. for
（ C ）8.I didn’t go out at night _______ I was afraid.
A.Since B. For C. Because D. so
（ B ）9.___________ it was raining, _____ we stayed at home.
A.Because ,so B. Because,/ C. Because ,for D .If .so
（ C ）10.I said nothing about it ______ his wife was there.
A.since B.so that C.because D.unless
（ B ）11.______ the weather is so bad,we have to delay our journey.
A.Befor B.Since C.Till D.After
（ B ）12._______ it is raining,you’d better take a taxi.
A.Before B.AS C.Till D.After
（ C ）13.You shouldn’t get angry just ______ some people speak ill of you.
A.since B.so that C.because D.unless
（ B ）14.______ you are here,you’d better stay.
A.Before B.Since C.Till D.after
（ B ）15.I hurried ______ I wouldn’t be late for class.
A.since B.so that C.as if D.unless
（ B ）16.The police searched for the _____ boy all around the city,but they didn’t find him.
A.miss B.lost C.lose D.missing
（ C ）17.--Must I hand in the composition tomorrow morning
--No,you ____.
A.mustn’t B.may not C.needn’t D.can’t
（ D ）18.They ______ touch with each other because of the war.
A.missed B.failed C.lose D.lost
（ C ）19.Oh.I______ my keys at home.
A.forgot B.lost C.left D.missed
（ D ）20.We landed _____ the airport in Chicago.
A.on B.in C./ D.at
（ C ）21.--Why didmn’t Betty come to school yesterday
--_____she as ill.
A.As B.since C.Because D.Beause
（ B ）22.That film was so _____ that most of the audience kept screaming in fear while watching it last night.
A.exciting B.frightening C.boring D.amazing
（ A ）23--I wonder _____ without water.
--About a week.
A.how long man can B.how long can man live
C.when man can live D.when can man live
（ B ）24.She had a stomachache ______she ate something bad.
A.so B.because C.or D.although
（ D ）25.The man was not ______ when he heard the _____ words.
A.frightening,frightening B.frightened,frightened
C.frightening,frightened D.frightened,frightening
二．用括号里所给词的适当形式填空
1.I haven’t been to New York and neither has my sister.
2. I can’t swim and neither can Mary.
3.My sister often calls me and so does my brother.
4.If you do not go shopping, neither shall I .
5.Cancer kills thousands of (thousand )people every year.
6.You will receive ( receive )a reply within seven days.
7.This creature( create ) had the largest eyes in the whole animal kingdom .
8.It's frightening (frighten) to think it may happen again.
9.I hope you will agree with (agree)me.
10.Drinking and smoking can damage (damage) your health.
12You will find that I won’t be frightened (frighten)easily.
13.We hope college life will help him to spread (spread)his wings a bit.
14With a lot work to do (do) ,he was allowed to go out.
15.The explorer (explore) told the boys about his adventures in the Arctic.
16.You’ve already damaged (damage)my bicycles. You must buy me a new one .
17.The radio spread (spread) the news as soon as the accident happened.
18.New scientific discoveries (discover) are being made every day .
19. I am terribly (terrible) sorry for keeping you waiting for so long .
20.I can always lose myself (I) in a good book.
21.The police are trying their best to rescue rescue the boy.
22.Peter hurt ( hurt )himself while he was shaving his beared.
23.Our Chinese astronauts have succeed in landing (land )on the Moon.
24.They plan to get married (marry)in summer.
25.He dived from the bridge to rescue (rescue)the downing child .
三.句型转换
1.I wonder how I get to the TV factory. (同义句)
I wonder how to get to the TV factory.
2.There are no creatures on it . (同义句)
There are not any creatures on it.
3.They were frightened ,so they ran away. (同义句)
They ran away in fear.
4.The spaceship was damaged because of a crash .(就划线部分提问)
Why was the spaceship damaged
5.I believe they have finished their work, haven’t they (反义疑问句)
6.I don’t think he cares , does he (反义疑问句)
7.He thinks you two have met before ,doesn’t he
8.You think I am wrong, don’t you
9.I suppose he cares much about you .(变为否定句)
I don’t suppose he cares much about you .
10.He lay in bed because he had caught a bad cold. (同义句)
He lay in bed because of a bad cold
语法加油站
原因状语从句
定义 ：原因状语从句是用来表示动作或状态发生的原因或理由的分句结构，可位于主句之前、之后或插在主句之间。
常见的引导原因状语从句的连词：because\since\as\now(that)
（1）Because 引导的原因状语从句语气最强，通常表示说话人认为这种原因是听话人所不知道的，因此在回答why引出的问句时，只能用because。
（2）since语气稍弱，强调已知的事实。
（3）as语气最弱，表示不言而喻，显而易见的原因和理由。
例：—Why are you sleeping outside on the porch tonight
—Because our air conditioner isn’t working.
Since you insist,I will reconsider the matter.
As I haven’t seen the film,I can’t tell you what I think of it.
（拓展）（1）for 是并列连词，后也可跟原因，但引导的不是原因状语从句，而是并列句，引出的原因较间接，似乎是事后所想到的补充解释的理由。
例：It must have rained last night, for the ground is wet this morning.
昨晚一定下雨了，因为今天早上地都是湿的。（表示推断，不用because）
because of 与because的用法
because of 介词短语，意思是“因为；由于”，后接名词作介词宾语
because 是连词 意思是 因为;由于, 后接句子
一般情况下because 与 because of 是可以相互转换的
e.g.：All the flights to London have been delayed because of the thick fog.
= All the flights to London have been delayed because it is fog thickly .
e.g. They went to the forest because of their curiosity .
= They went to the forest because of they are curious.
1. I hate travelling by air ______ you usually have to wait for hours before the plane takes off.
A. because B. though C. until D. unless
2. I’ll go to visit my aunt in England ______ the summer holidays start..
A. while B. since. C. until D. as soon as
3. It will be hard for us to get up in the morning if we ______ to bed too late.
A. go B. went C. will go D. have gone
4. ______ I got back, I found my mother cooking for me.
A. When B. Before C. Since D. Although
5. One important aim of our school is to prepare us for the future___________ we can face all the challenges with confidence.
A. so far B. so that C. even if D. if only
6. -- Do you know if he to play football with us
-- I think he will come if he free tomorrow.
A. comes, is B. comes, will be
C. will come, is D. will come, will be
7. -- What are you doing this weekend
-- We are going hiking if it______ .
A. will rain B. doesn’t rain C. rains
8. If she _______ tomorrow, I’ll call you.
A. come B. comes C. will come D. came
9.–Come and join us, Ben!
--I’m afraid I can’t. I’m too busy now. If I ______ time, I would certainly go.
A. had B. will have C. have had D. have
10. You can use English or Chinese ______ you travel in Singapore.
A. whether B. whatever C. where D. if
11. ______ bad weather stops me, I can do outdoor sports every day.
A. When B. Because C. If D. Unless
12. Boys and girls, calm down and focus on the test paper ______ you begin to think about the answers. Be confident. You can do it.
A. as if B. as soon as C. although
13. Kate’s dad is getting old. She will go back home to see him ______ it is convenient.
A. because B. whenever C. although D. unless
14. If Nancy ______ the exam, she will go to Australia for English study.
A. pass B. passed C. passes D. will pass
15. Henry will give us a report as soon as he ______.
A. arrives B. arrived C. is arriving D. will arrive
16. Dad, please tell me when Mum ___. I miss her very much.
She will return when she ___ her task. And she will bring a nice present for you.
A. returns; finishes C. will return; finishes B. returns; will finish D. will return; will finish
状语从句答案：
1-5ADAAB 6-10CBBAD 11-16DBBCAC
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