Unit7.The unknown world（1）
vocabularies:
phrases:
keep quiet保持安静 learn about 了解
because of 因为 believe in 相信，信任
in fear 害怕 such as 例如
run away 逃跑 as soon as possible 尽快
agree with 同意 disagree with 不同意
thousands of 成千上万的
★Listen to a spacesh ( http: / / www.21cnjy.com )ip captain giving instructions to two lost astronauts.
astronaut 可数名词 ，意为“宇航员” 以元音音素开头，
故表示“一名宇航员”用：________ astronaut.
长大后，我想成为一名宇航员.
译为：____________________________________________
拓展：
space suit 航天服 man-made satellite 人造卫星
launch pad 发射台 spacecraft 航天器
spaceship 宇宙飞船
那名宇航员正穿着航天服. 译为：____________________________________________
Are you sure this planet is safe ,Hi
be sure 意为“确定，确信”
be sure of /about …其后常跟名词，代词或动名词等。
be sure to do sth.意为“确定去做某事”
be sure that…后常跟句子。
即学即用：
⑴ _______ ________ ________finish your homework before supper.
⑵We’re ________ ________ he is right.
⑶He ________ ________ ________ his success.
外星人来了！！
Tina woke up at midni ( http: / / www.21cnjy.com )ght. She looked out of her window and saw a yellow light in the sky. Itsuddenly dived towards the ground. She heard a noise and saw a red light.
The next morning, Tin ( http: / / www.21cnjy.com )a mentioned it to her brother Tom. “I’m sure something landed in the forest nearthe hills as I heard a loud noise last night,” she said.“Let’s explore after school.”
At 6 p.m., Ti ( http: / / www.21cnjy.com )na and Tom reached the forest. They heard some voices speaking 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 was standing next to a long spaceship. The spaceship was damaged because of a crash.
The children were f ( http: / / www.21cnjy.com )rightened. Suddenly, another alien appeared from the bushes in front of them. It discovered them and made a terrible noise! The children ran away in fear.
The next morning, ( http: / / www.21cnjy.com ) Tina and Tom told their parents about the strange creatures. “They were very ugly. They had some hair, but they didn’t have any feathers,” said Tina.
“There was someth ( http: / / www.21cnjy.com )ing 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, “Since n ( http: / / www.21cnjy.com )o 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 ( http: / / www.21cnjy.com ) the piece of paper with the strange marks on it. “It looks strange,” he said, as he looked at the word “EARTH”.
Do you believe in aliens 你相信外星人吗？
believe in 意为“信任，相信”
这位女孩信任她的好朋友。
The girl_______ _______her good friend.
辨析：believe in sb.与believe sb.
Believe in sb. 信任某人 I believe in him very much.我非常信任他
Believe sb. 相信某人（所说的话是真的） I believe him.我相信他说的话
一言辨异：She believes him,but she can’t believe in him.
她相信他说的话，但是她不能信任他.
We received some messages from aliens about ten years ago.
大约十年前，我们收到了一些来自外星人的信息.
receive v. 意为“收到”
Did you ______ my presents on your birthday
你生日那天收到我的礼物了吗？
拓展：
receive 的同义词为accept，反义词为 give，send.
receive 强调客观上“收到”；而accept强调主观上“接受”
He received a gift,but he didn't accept it.
译为：____________________________________________
She looked out of her window and saw a yellow light in the sky.
她向窗外看了看，看见天空中有一道黄光.
look out of 意为“向…外看”
向你们教室的窗外看。
译为：________________________________________
①out of 意为“从…出来”
②关于look的短语：
look at(看…),look for(寻找) ,look up（抬头，查阅）,look down（俯视）,
look over（检查）,look after（照顾）， look through（浏览，温习）
look out （当心）
They heard s ( http: / / www.21cnjy.com )ome voices speaking a strange language, so they hid behind some bushes and kept quiet.
他们听见用一种奇怪的语言说话的声音，所以他们藏在一些灌木丛后保持安静.
hear…doing sth. 意为“听见…正在做某事”
Do you hear someone ______(knock)at the door 你听见有人正在敲门吗？
辨析：hear sb. doing sth.与 hear sb. do sth.
hear sb. doing sth. “听见某人正在做某事”强调听到的动作正在进行. I hear them singing in the next room.我听到他们正在隔壁房间唱歌.
hear sb. do sth. 听见某人做某事，强调听到的是动作发生的整个过程 We often hear him sing this song.我们经常听到他唱这首歌。
②keep quiet 意为“保持安静”
Keep quiet！Class begins!保持安静！上课了！
keep + adj.意为“保持！继续（处于某种状态）”
keep silent ____________ keep warm _______________
你必须照顾好自己，保持身体健康.
译为：______________________________________________
It discovered them and made a terrible noise!
它发现了他们并发出了可怕的噪音。
dicover 及物动词 意为“发现，找到，发觉”
辨析：discover，find与invent
discover 发现，发觉 表示发现已存在的东西，新的科学真理，新区域等
find 发现，找到 指对某种事物的寻求，也指找到丢失的事物
invent 发明 指经过认识和实践创造出前所未有的事物
即学即用：
⑴Columbus ________America.哥伦布发现了美洲.
⑵He _______his pen at last.最后，他找到了他的钢笔.
⑶Who _______the telephone.谁发明了电话？
more practice：
一：选择题：
1.The girl _______some flowers from her boyfriend yesterday.
A.receives B.accept C.received D.accepted
2.We planted________trees last year.
A.two thousand B.two thousands C.two thousands of D.thousand of
3.The man refused _____my question.
A.answer B.anwered C.answering D.to answer
4.I think we should protect the animals.Do you agree ______me
A.on B.to C.with D.for
5.---What do you think of the film
---__________.We all like it.
A.Enjoy yourself ( http: / / www.21cnjy.com ) B.Many thanks C.Pretty good D.It’s hard to say
6.Please be ______.There’s an important meeting in the next room.
A.quickly B.quick C.quiet D.quietly
7.---Is Kate serious？
---I________.She never means it.
A.suppose Bagree C.believe D.wonder
8.Mo Yan’s books ( http: / / www.21cnjy.com )have been sold in many bookstores ______his winning of the Nobel Literature Prize.
A.because B.since C.as D.because of
9.Stop making so much_____.The chidren are sleeping.
A.voice B.noise C.sound D.mark
10.I hear him ______at the back door.
A.shout B.shouting C.shouted D.shouts
二：根据句意及首字母提示完成单词或短语。
11.I w________what you are.Can you tell me
12.I’m p______ to see my best friend.
13.There are two_______ (刀)and three forks on the desk.
14.I can’t believe the story is________(真实的).
15.Could you ______ (解释)why you are often late for class.
16.Liu Yang is the first Chinese woman a________.
17.The girl used to be q________,but now she is outgoing.
18.Jack invited me t ( http: / / www.21cnjy.com )o his party yesterday ,but I r _______his invitation.
19.I r______a letter form my friend.Mary.
20.There are lots of trees on the h_______.
三．根据所给的内容，用英语完成下列句子。
21.运动会因为糟糕的天气被推迟了。
The sports meeting was put off_______ ______the bad weather.
22.我和你在许多事情上意见不一致。
I don’t _______ _______you on many things.
23.我们应该尽快完成这项任务。
We should finish this task as ________as ________.
24.他们恐惧地跑开了。
They ran away ________ ________.
25.她半夜醒来看见一道红光。
She ______ ______ at midnight and saw a red light.
四．选词填空
n.
fear 害怕 hill小山 knife 小刀
alien 外星人（adj.不相容的） astronaut宇航员
creature 生物 feather 羽毛 line 路线（v.排队）
bush（灌木丛） mark记号（v.作记号）crash 坠毁（v.坠落）
v.
receive收到 explore探索 discover发现
damage 损坏（n./v.） explain 解释，说明
spread 张开 refuse 拒绝 wonder 想知道
adj.
unknown 未知的 loud 响亮的 quiet安静的
round 圆，圆的(adj./n.) frightened 惊吓的，害怕的
terrible可怕的 pleased 高兴的Unit7.The unknown world（2）
Review:
中英互译：
单词：
fear _________ 小刀 __________ 外星人（adj.不相容的）_________
astronaut_________ 生物_________ feather _________ 高兴的_________
记号（v.作记号）_________ crash _________ receive_________
探索_________ discover_________ 损坏（n./v.）_________
explain _________ 张开_________ 拒绝_________
想知道_________ unknown_________ loud _________
安静的_________ frightened _________terrible_________
短语:
保持安静___________________ 了解___________________
因为___________________ 相信，信任___________________
害怕___________________ 例如___________________
逃跑___________________ 尽快___________________
同意___________________ 不同意___________________
成千上万的___________________
用所给单词的正确形式填空
Keep____________(quiet)！Class begins!
It ____________(discover) them and made a terrible noise
Do you hear someone ______(knock)at the door
He ____________(recei ( http: / / www.21cnjy.com )ve) a gift yesterday,but he didn't ____________( accept) it.
I hear him ____________ (knock)at the back door
Since no one else saw ( http: / / www.21cnjy.com )these aliens, I refuse____________ (believe) you.
Let’s ____________ (explore) after school.
The children were frightened.
frightened 形容词，意为 “惊吓的，害怕的”
Don’t be frightened .不要害怕
拓展：
frightened 用来修饰人；frightening 意为“令人害怕的，吓人的”用来修饰物.
二者都意为“害怕的”，且都是形容词frightened 可以作表语或定语，是“惊恐的，受惊的，害怕的”之意afraid只能做表语,多用于习惯经常地“惧 ( http: / / www.21cnjy.com )怕”某事物, 泛指一种“恐惧心理”;后接名词、代词、动名词等时,用介词of;接动词时,用带to的不定式;接从句用连词that (可省略)。也就是：be afraid to ( http: / / www.21cnjy.com )do sth./be afraid of sth./be afraid of doing sth. / be afraid +that从句用frightened或者afraid 填空The _________child is still crying .I’m ______to go out at night
Since no one else saw these aliens, I refuse to believe you.
refuse 动词，意为“拒绝”
refuse to do sth. 拒绝做某事.
我拒绝帮助懒人。
译为：___________________________________
He ______ _______ _______this question.
他拒绝回答这个问题.
I wonder what it means.
wonder 及物动词，意为“想知道，想弄明白”
She ________where you come from.
她想知道你来自哪里.
拓展：
wonder 名词，意为“奇观，奇异，奇事”
The Great Wall w ( http: / / www.21cnjy.com )as _____ _____the Seven ______ of the world.长城是世界七大奇迹之一.
wonderful 形容词，意为“精彩的，极好的”
The food is ________.
这种食物好极了.
这是一个精彩的故事
译为：__________________________________
You musn’t hurt anyone on this planet.
mustn’t 意为“禁止，不准”
You _____ _______ _______in the museum.(你不准在博物馆里拍照)
拓展：
must 作为情态动词，意为“必须”，其否定形式为mustn’t ,语气较为强烈，意为“禁止”
当must 用于一般疑问句中，其否定回答用“needn’t”或者“don’t have to”
--Must she hand in her homework now
--No, she needn’t /she don’t have to.
must 表示推测时，表示“一定”，否定推测多用can’t.
He must be in the classrom.他一定在教室
He can’t be in the classroom.他一定不在教室.
练一练：
Excuse me,sir.You _____open the door before the train stops.
A.mustn’t B.needn’t C.may not D.don’t have to
So do I.我也这样认为.
“So +助动词/情态动词/连系动词be + 主语”表示前一句中主语的情况也适合后者。意为“…确实如此”。
如：
--Tom enjoys listening to music .汤姆喜欢听音乐.
--So do I.我也是
拓展：
如果前面是否定句，要用“neither/ nor +助动词/情态动词/连系动词be+主语”
---He isn’t wrong .他没错
---_________ ________ _______.你也没错.
“so +主语+助动词/情态动词/连系动词be”意为“的确如此”
--It is a bad day.天气太糟糕了。
--_________ _______ _______.是的，的确如此.
So what is the truth
那么真相是什么？
①tell the truth 说出真相
②truth 名词，意为“真相”，其形容词true，意为“真的”
练一练：
⑴你能告诉我真相吗？
译为：__________________________________
⑵To tell the_________(true),I don’t like the drinks in that cafe.
Look and review ：
单项选择
My brother read a book____The Lion King.
A.call B.name C.called D.is named
I have ______to tell you.
A.anything important B.important anything
C.something important D.important something
--Must I start now
--No,you______.
A.musn’t B.can’t C.needn’t D.shouldn’t
4._______do you want to say？
A.Else what B.What else C.Other what D.What other
5.I think we should protect the animals.Do you agree_____me
A.on B.to C.with D.for
6.His father likes keeping dogs and____.
A.so is his father B.so his mother does
C.so does his mother D.so his mother is
7.His family are worr ( http: / / www.21cnjy.com )ied about him because they haven't ______letters from him
for a long time.
A.accepted B.received C.writen D.collected
8.There is a smile ( http: / / www.21cnjy.com )on Miss Gao’s face .She must be ______with Sam’s work.
--I think so .No one did as well as him in our class.
A.angry B.pleasing C.please D.pleased
9.It’s snowing so heavily! I prefer to stay at home and read a novel.
---_______.I hate going out on such a cold day.
A.So do I B.So I do C.Neither do I D. Neither I do
10.She _______ help me with my Maths.
A.refuse to B.to refuse C.refuses to D.refuses
完型填空
Many people today ( http: / / www.21cnjy.com ) like reading stories about UFOs. Many people in different countries are 11 UFOs. But what are UFOs There are some different ideas about UFOs. 12 popular one is that UFOs carried visitors coming from other stars.They 13 to fly much faster than planes on the earth.UFO scientists and many other people believed it.Some people said that they saw a few UFOs 14 on the earth;some people said they saw some strange visitors 15 the UFOs; others even said they were taken 16 in the UFOs,and then were sent back. Some people made mistakes (犯错误) when they said they ever saw UFOs. They 17 saw a weather balloon(气球) or a plane,or the light in the sky(天空) 18 the ground. Sometimes it is the light from the moon.But there are a lot of other things we can't understand. Now people cannot see UFOs clearly 19 .It may 20 many years to find a clear answer. Then people will give the UFO another name.
( )11. A. se ( http: / / www.21cnjy.com )eing B. hearing C. studying D. following
( )12. A. The m ( http: / / www.21cnjy.com )ore B. Most C. More D. The most
( )13. A.look ( http: / / www.21cnjy.com )ed B. seemed C. happened D. failed
( )14. A .fall ( http: / / www.21cnjy.com ) B. fly C. take off D. land
( )15. A. comin ( http: / / www.21cnjy.com )g into B. coming out C. coming out of D. getting out
( )16. A ( http: / / www.21cnjy.com ). off B. down C. away D. up
( )17. A.must ( http: / / www.21cnjy.com ) B. could C. probably D. may
( )18. A ( http: / / www.21cnjy.com ).of B. around C. from D. on
( )19. A.yet ( http: / / www.21cnjy.com ) B. already C. even D. also
( )20.A.spen ( http: / / www.21cnjy.com )d B.take C.pay D.pay for
阅读理解
This story ha ( http: / / www.21cnjy.com )ppened four years ago. Tom was seven years old then. He was a good boy. He was one of the best pupils in his class. But he could not get up early. He often slept until eight or nine o'clock in the morning. So he was often late for school. Tom's mother didn't want him to be late for school. So she bought him a clock. She said to Tom, You must get up when you hear the clock ring. " " Yes, Mum," said Tom. After that Tom got up at six thirty when he heard the clock ring. One day his mother forgot. to make the clock ring at the usual time. And the next morning Tom didn't get up at six thirty. It was time for breakfast. Mother went to see him. Tom was still in bed and his eyes were open. " Why didn't you get up " Mother was angry." You told me to get up when I heard the clock ring. So I am waiting for the bell. Mum, is the clock still sleeping " Tom asked.
1. How old was Tom when the story happened
A. Ten. B. Nine. C. Seven. D. Six.
2. Tom's mother bought him a clock, because__________.
A. she liked it B. Tom liked it
C. she didn't want Tom to be late tor school
D. both she and Tom liked it
3. What time did Tom usually get up after he had the clock
A. 7:00. B. 6:30. C. 6:00. D. 7:30.
4. What happened to Tom one day when the clock didn't ring
A. He got up late. B. He got up early.
C. He didn't get up all the morning. D. He didn't get up late.
5. Tom still stayed in bed to wait for___________ .
A. the bell ( http: / / www.21cnjy.com ) B. the breakfast C. his mother D. his fatherUnit7.The unknown world（3）
Grammar
Ⅰ.单元大归纳：
be sure to do sth. 确信做某事 Let’s do sth. 咱们做某事吧
refuse to do sth. 拒绝做某事 hear …doing sth听见某人正在做某事
tell sb. about srh. 告诉某人某事 what to do (疑问词+不定式)要做什么
keep+形容词 保持… become（系动词）+形容词 …
try todo sth. 尽力做某事 as…as possible 尽可能
sth. happens to sb. 某人发生了某事
so+助动词/情态动词/be+主语 …也是如此
tell sb. (not) to do sth. 告诉某人（不要）做某事
There’s…doing sth. 有…正在做某事
Ⅱ.原因状语从句和because of 的 用法：
① Since no one else saw these aliens, I refuse to believe you.
由于没有其他的人看见这些外星人，所以我拒绝相信你们。
②We went there because I heard a loud noise last night.
我们去那儿是因为我昨天晚上听见饿一声巨响。
③I’m unhappy because of your marks in the exam.
我不开心是因为你的测试分数。
分析：句①是__________引导的原因状语从句；句②是__________引导的原因状语从句;
句③中含有__________短语。
原因状语从句
(1)原因状语从句通常由because, since, as引导。例如：
He didn’t come to school because he was ill.
As it is raining, we shall not go the zoo.
Since you can’t answer the question, I’ll ask someone else.
(2)because表示直接原 ( http: / / www.21cnjy.com )因，语气最强。Because引导的原因状语从句多放在主句之后。回答由why提出的问题，只能用because。As和since语气较弱，一般用来表示明显的原因。由as和since引导的原因状语从居多放在句首。例如：
---Why aren’t going there
---Because I don’t want to.
As he has no car, he can’t get there easily.
Since we have no money, we can’t buy it.
(3)because和so不能同用在一个句子里。
我们可以把原因状语从句放在主句之后.
我们可以把原因状语从句放在主句之前，但必须用“，”隔开.
practice:
用because，since或as 把下列两个句子合成一句.
Read the following sentences and find the difference
Tim didn’t go to school yesterday because he was ill.
②Tim didn’t go to school yesterday because of his illness.
总结：because of 后面接名词，名词短语，人称代词的宾格;because 后接句子.
用 because或because of 填空
They went to the forest ______________ their curiosity.
Tina woke up at midnight __________ a loud noise.
She decided to explore the forest __________fit.
用because of 把下列两个句子合成一句.
语法专练：
1.—Why do you like English
--_______ it is very interesting.
A.Though B.Because C.Because of D.But
2.We can’t go camping ______the bad weather.
A.so B.because C.because of D.although
3._____She/she didn't ( http: / / www.21cnjy.com )go to see her father_______she was very busy yesterday.
A.So;because B.Because;so C./,so D./,because
4.______everyone is here,let’s start to have a meeting.
A.Since B.Or C.Because of D.But
5.He couldn’t catch the early bus_____he got up late.
A.so B.because C.but D. because of
单项选择
1. _______ he’s old, he can still carry this heavy bag.
A. Though B. Since C. For D. So
2.He took off his coat _______ he felt hot.
A. because B. as C. if D. since
3.______ the day went on, the weather got worse.
A. With B. Since C. While D. As
4.Tony never ( http: / / www.21cnjy.com )spends money on buying books_______he doesn’t like reading.
A. but B. because C.though D. until
根据所给中文补全句子
5.Li Ming did ( http: / / www.21cnjy.com )n’t go out for a walk because of ___________________________. (天下大雨)
6.Li Ming didn’t g ( http: / / www.21cnjy.com )o out for a walk because_____________________________. (天下大雨)
7.Li Ming won’t go t ( http: / / www.21cnjy.com )o the meeting because_____________________________. (他生病了)
8.Li Ming won’t g ( http: / / www.21cnjy.com )o to the meeting because of ___________________________. (他生病了)
完型填空：
I had a very unus ( http: / / www.21cnjy.com )ual experience（经历）on Sunday. At ten in the morning, I was 1 down the street when a UFO landed right 2 of me. You can imagine（想象） 3 strange it was! An alien 4 and walked down Center Street. I followed it to see 5 it was going, and I was very surprised when it went 6 a souvenir shop. While it was 7 at the souvenirs（纪念品）, the shop assistant called the 8 . Before the police arrived, the alien left the 9 and then visited the Museum of Flight. 10 the alien was in the museum, I called the TV station. Isn’t that amazing!
1. A. arriving ( http: / / www.21cnjy.com ) B. walking C. looking D.playing
2. A. in front ( http: / / www.21cnjy.com ) B. before C. at D.back
3. A. what B. when C. how D.whose
4. A. got in B. got on C. got out D.got off
5. A. where B. when C. which D.why
6. A. onto B. on C. into D.with
7. A. walking B. looking C. giving D.asking
8. A. police ( http: / / www.21cnjy.com ) B. teacher C. driver D.doctor
9. A. school ( http: / / www.21cnjy.com ) B. shop C. street D. hospital
10. A. While B. What C. Which D.Though
阅读理解：
The rockets take ( http: / / www.21cnjy.com )astronauts and man-made satellites into space. The satellites are used for communication, weather monitoring and research. But how do satellites stay up without falling down There are two opposite forces (力量) acting on the satellite. One of them is the force of gravitation (地心引力), which tries to pull the satellite towards the earth. The other force is created by the rotation (旋转) of the satellite around the earth. This force tries to take the satellite away from the earth. With these two forces, the satellite goes round and round. The gravitational pull of the earth (the force which pulls everything towards the ground) is like a rope which keeps the satellite from flying away. Everything that goes up has to come down. It is only a matter of time before a satellite comes back to the earth. As time goes by, the satellite loses its speed, which makes the gravitational pull stronger than the force pulling it away. This makes the satellite crash (坠落) down to the earth.
1. Which of the following uses of satellites is NOT mentioned
A. communication B. monitoring the weather condition
C. doing some research D. taking pictures
2. The force that ( http: / / www.21cnjy.com ) pulls the satellite towards the earth is created by ________.
A. the earth B. the satellite itself
C. the rotation of the satellite D. the rope
3. Why can't the satellites fly away
A. Because of the force from the earth.
B. Because the satellite is too big.
C. Because of the ( http: / / www.21cnjy.com ) force created by the rotation of the satellite around the earth.
D. Because people o ( http: / / www.21cnjy.com )n earth have made ropes to tie the satellites tightly.
4. The satellite will finally crashes down to the earth ________.
A. when it flies faster B. when its speed slows down
C. when people cut the rope D. when there is no electricity in it
5. Which of the following is TRUE according to the passage
A. There are four forces acting on the satellite.
B. The force of gravitation makes the satellite go round and round.
C. As time goes by, the satellite will finally fall down.
D. The satellite will stay in space forever.
( http: / / www.21cnjy.com )
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