Unit 4 Life on Mars 单元练习课件(共96张PPT)

(共96张PPT)
九年级 下册
Unit 4 Life on Mars
知识概要
课时讲练
1.—Wow, I’ve never thought about travelling into space. 哇，我从未想过到太空旅行。
—Me neither. 我也没有。
（1）think about意为“考虑”，about是介词，后可接名词、代词或动名词作宾语，也可跟“疑问词+动词不定式”结构或宾语从句。例如：
He is thinking about working there. 他正考虑在那里工作。
My sister is thinking about what to wear. 我妹妹正在考虑穿什么。
Comic strip & Welcome to the unit（第一课时）
【拓展】
① think of意为“想到；想起”，of为介词，后可接名词、代词或动名词作宾语。例如：
She thought of a good idea. 她想到了一个好主意。
② think over意为“思考，考虑”, over是副词，如果代词作其宾语，则要将代词放在think和over中间。例如：
Think it over, and you’ll find a way. 考虑一下，你就能找到办法。
（2）“Me neither.”意为“我也没有；我也不”，此处相当于“Neither have I.”。“Me neither”与“Me too（我也是）”意义相反。neither在此处用作副词，意为“也不，也不是”，常用于“neither+助动词/情态动词/连系动词be+主语”结构（此结构中的neither可换为nor），表示前面所说的否定情况也同样适用于后面的人或物，意为“某人（物）也不”。在此结构中若主语为I，该结构可改为“Me neither”。例如：
—Lucy can’t play tennis. 露西不会打网球。
—Neither can I/Me neither. 我也不会。
2.How do you like life on Mars 你认为火星上的生活怎么样
“How do you like... ”意为“你认为……怎么样 ”，相当于“What do you think of/about... ”。例如：
—How do you like your school life = What do you think of/about your school life 你觉得你的学校生活怎么样？
—It’s wonderful. 很精彩。
基础达标
一、根据句意和中文提示写出单词。
1.Do you think it important to wear a space_______（头盔） all the
time in space
helmet
2.We would need to wear _______（特别的） boots on Mars.
special
3.It’s necessary to take an air _____（罐） when you dive in the sea.
tank
4.There is less _______（重力） on Mars, so we can jump high very
easily.
gravity
5.The ______（干的） food doesn’t taste good, but it’s easy to take.
dried
6.We each need to bring a _____（帐篷） if we go camping this
weekend.
tent
二、用括号内所给词的正确形式填空。
1.Have you ever thought about _________ （travel） into space
travelling
2.There would be no _________（pollute） on Mars.
pollution
3.We want some ________（sleep） bags for the coming trip.
sleeping
4.It’s _______（bore） to play the same game all the time.
boring
5.I don’t think we should drive to Chaoyang Square. It’ll _________
（probable） take ages to find a parking place.
probably
三、单项选择。
1.—________ do you like the food in that Chinese restaurant
—It’s really delicious.( )
B
A.What B.How C.Why
2.A power ________ can provide the space suits with electricity to
keep the spacemen safe.( )
B
A.pile B.pack C.crowd
3.—Why do you collect so many old bikes
—I’ll have them ________ and give away to the children who don’t
have bikes.( )
C
A.used up B.given up C.fixed up
4.One of the best ways for people to keep healthy is to ________
good eating habits.( )
B
A.grow B.develop C.increase
5.—Maybe you can catch the last bus.
—________. If not, I’ll have to walk home.( )
C
A.Just so-so B.Not at all C.I hope so
6.—I don’t think we can find a better planet than the Earth.
—________ And that’s why we should protect it carefully.( )
A
A.Me neither. B.I disagree. C.Why do you think so
Reading（第二、三课时）
1.Our own planet, the Earth, is becoming more and more crowded and polluted because of the rapid increase in population. 因为迅速增长的人口，我们自己的行星——地球正变得越来越拥挤，污染越来越严重。
（1）crowded在此处用作形容词，意为“拥挤的”，可在句中作定语或表语。be crowded with意为“挤满了……”。例如：
It’s a crowded street. 那是一条拥挤的街道。
The narrow roads were crowded with holiday traffic. 狭窄的道路上挤满了度假的车流。
（2）【辨析】rapid、fast与quick
rapid 表示人的动作 迅速时，三者 可换用。例 如：a rapid/fast/quick worker手脚麻 利的工人 用作形容词。比fast和quick正式些，通常指突
然或急速（且连续不断）的动作。其副词形式
为rapidly
fast fast可用作形容词或副词，侧重指速度快。表示
钟表走得快时也用fast
quick quick用作形容词，通常表示某一动作来得突然
或持续时间很短，有时还含有匆忙之意。催人
快做某事常用quick。其副词为quickly
例如：
Simon has made rapid progress in English. 西蒙在英语方面取得了快速的进步。
Jim ran as fast as he could. 吉姆尽量快跑。
My watch is 2 minutes fast. 我的表快2分钟。
He ate a quick breakfast and rushed off to work. 他匆匆吃了早餐就赶去上班。
Be quick! The bus is coming. 快点儿!公共汽车来了。
2.At present, our spacecraft are too slow to carry large numbers of passengers to Mars—it would take months.目前，我们的宇宙飞船太慢了，无法运送大批的乘客去火星——因为要花几个月的时间。
large numbers of表示“许多；大量的”，相当于a large number of，修饰可数名词复数，作主语时，谓语动词用复数。number前可用large、small等修饰，以表示程度。例如：
Large numbers of students are playing games together. 许多学生正在一起玩游戏。
3.With the development of technology, by the year 2100，the journey might only take about 20 minutes in spacecraft that travel at the speed of light! 随着科技的发展，到2100年，乘坐以光速飞行的宇宙飞船，行程或许只花费大约20分钟!
“at the/a speed of...”意为“以……的速度”。例如：
My father is driving the car at the speed of 120 km per hour. 我父亲正以每小时120千米的速度驾驶汽车。
4.Food would most probably be in the form of pills and would not be so tasty. 食物很可能会以药片的形式存在，而且味道没那么可口。
（1）“in the form of...”意为“以……的形式”。例如：
Mr. Green told his past to us in the form of a story. 格林先生以故事的形式把他的过去讲给我们听。
（2）tasty是taste的形容词形式，意为“美味的；可口的”，相当于delicious。例如：
The chicken soup is very tasty. 这鸡汤很美味。
5.Compared with life on the Earth, life on Mars would be better in some ways. 与地球上的生活相比，火星上的生活在一些方面要好些。
（1）“compare...with...”意为“把……与……比较”。例如：
If you compare your work with hers, you’ll find hers is much better. 如果你把你的工作和她的比较一下，你就会发现她的好得多。
【拓展】“compare...to...”意为“把……比作……”，也可意为“把……与……比较”，此时与“compare...with...”用法相同。例如：
Shakespeare compared the world to a stage. 莎士比亚把世界比作舞台。
If you always compare yourself with others, you may have tons of pressure. 如果你总是拿自己与别人进行比较，你可能会有很大的压力。
（2）compared with life on the Earth是一个过去分词结构，在句中作状语，表示主语与该动作存在被动关系。例如：
The teacher left the classroom, followed by a lot of students. 老师离开了教室，后面跟着许多学生。
【拓展】现在分词短语在句子中也可作状语，表示主语发出的动作，主语与该动作是主动关系。例如：
The girls walked home with their classmates, singing happily all the way. 女孩们和同学一起步行回家，一路上开心地唱着歌。
基础达标
一、根据句意和中文提示写出单词。
1.Humans cannot survive without water, ________（氧气） or food.
oxygen
2.Professor Clark found a link between the rise of online
communication and an ________（增加） in the writing mistakes.
increase
3.__________（比较） with traditional cars, electric cars are more
environmentally friendly.
Compared
4.The gravity on Earth can prevent people from ________（漂浮）
away into the sky.
floating
5.According to the report, China is working on the new train with the
highest ______（速度） of about 500km/h.
speed
6.__________（乘客） in the subway are not allowed to eat or drink
as the smell can make others unhappy.
Passengers
7.71% of our _______（行星） is covered with water, but only about
2% is fresh water.
planet
8.Andy made such ______（迅速的） progress that Mrs. Li praised
him in front of the whole class.
rapid
二、用括号内所给词的正确形式填空。
1.________（pollute） air does harm to our health. It’s necessary to
keep air fresh and clean.
Polluted
2.China has developed _______（rapid） since the 1980s.
rapidly
3.Paris is known for its fine art, _____（taste） food and romantic
scenery.
tasty
4.—What’s that, Mum
—Oh, it’s a _________（special） designed diet plan for your dad.
specially
5.The bus is so _________（crowd） that you can’t find any more
room.
crowded
6.“Breaking the ice” means doing something to stop feeling shy or
_____________（comfortable）.
uncomfortable
7.I think life on Mars would be interesting as well as ___________
（challenge）.
challenging
三、单项选择。
1.________ the development of technology, many things that appeared
in science fictions are brought into our daily life.( )
C
A.By B.As C.With
2.On the way home, Amy noticed that there was a man following her.
________, he was looking at her strangely.( )
B
A.Therefore B.Moreover C.However
3.—A number of students ________ in the dining hall.
—Let me count. The number of the students ________ about
600.( )
A
A.are; is B.is; are C.are; are
4.Travelling to outer space now costs ________ much ________
common people hardly have a chance to experience it.( )
C
A.too; to B.too; for C.so; that
5.—________ does it take to fly from the Earth to Mars at present
—About seven months.( )
A
A.How long B.How soon C.How far
6.In Sunshine Middle School, every student’s iPad ________ a system
so that students can receive the exercises from their teachers.( )
B
A.connects to B.is connected to C.has connected to
四、根据汉语意思完成句子，每空一词。
1.地震之后，救援以食物和药品的形式出现。
After the earthquake, help comes in the ______ ___ food and medicine.
forms
of
2.这个故事太精彩了，埃米要妈妈再给她读一遍。
The story is so excellent that Amy asked her mum to read it ____
_____ ______.
all
over
again
3.如今许多人因为吃得营养过剩而生病。
Many people nowadays get ill ________ ___ too much nutritious food.
because
of
4.该流星群正以每秒66千米的速度坠落。
The shooting stars are falling at a ______ ___ 66 km per second.
speed
of
5.“双减”政策后，学生的生活质量在某种程度上提高了。
Students’ life quality has been improved ___ ______ ______ after the
“Double Reduction” Policy.
in
some
ways
能力训练
五、根据语篇内容，从方框中选择恰当的单词，并用其正确形式填空。每个单词只能用一次。
know life different back and
interesting sign real find they
The planet Mars is the closest and most similar planet to the
Earth. It is very 1. . to scientists. For example, Mars has
seasons with 2. . weather, but other planets have the same
temperatures all year round. Was there 3. . on Mars
interesting
different
life
To find out, scientists need 4. . if Mars ever had water.
In 2004, two robot explores （探测器）, or “rovers”, called Spirit and
Opportunity were sent to look for 5. . of water. These rovers can
drive over rocks 6. . all kind of rough ground. They can also use
cameras and send photos 7. . to the Earth. First, the two rovers
found chemicals and patterns （图文） in the rocks that were probably
made by water. Then, they moved to another area and 8. . other
rocks which may have been created by water. Now scientists think
there was probably water on the planet long ago. Today 9. . are
to know
signs
and
back
found
they
know life different back and
interesting sign real find they
still not sure if there was life on Mars. They 10. . need more
information to decide. The discoveries of the two rovers answered
some old questions, but they also brought up many new ones.
really
know life different back and
interesting sign real find they
素养提升
六、完形填空。
Men have always wanted to fly like birds. Birds can fly . .1. . because they are light, but men’s bodies are heavier.
Men first went up into the air in balloons. There were big balloons, and they were . .2. . with gas. Hydrogen（氢气） is a useful gas for balloons. It is . .3. . than air. Helium（氦气） is also lighter than air, but it . .4. . a lot of money. So balloons are usually filled with hydrogen.
Balloons have to fly with the wind as they have no engines（发动机） to drive them. Later men made airships. They are balloons . .5. . engines. They are also filled with hydrogen.
Aircraft with wings now . .6. . people across the world. Powerful engines drive these machines across the sky. Some of the engines are like the engines of cars, . .7. . they are more powerful.
There is another kind of engine which we call the jet（喷射） engine. An English engineer . .8. .the first jet engine. At the same time, Germans were also building a jet engine. In May 1941, the English
engineer’s new engine was . .9. . in an aircraft, and the aircraft flew quite well.
Jet engines are very powerful. Usually two, three or four are enough for an airplane, but some big aircraft need six. Anyone in a moving jet plane can feel the power of the engines. Jet planes can travel faster than . .10. .. As a flying jet plane leaves its noise behind it, we do not hear it until it has gone.
1.( ) A.excitedly B.differently C.easily
C
2.( ) A.full B.filled C.covered
B
3.( ) A.heavier B.less C.lighter
C
4.( ) A.costs B.takes C.pays
A
5.( ) A.from B.with C.under
B
6.( ) A.take B.fly C.teach
A
7.( ) A.or B.so C.but
C
8.( ) A.imagined B.supposed C.invented
C
9.( ) A.repaired B.fixed C.compared
B
10.( ) A.virus B.gas C.sound
C
Grammar（第四课时）
简单句和复合句之间的转换（二）
1.含有状语从句的复合句与简单句之间的转换
在英语中，我们可以用at the age of、because of、“without/with...”等介词短语，将含有状语从句的复合句改为简单句。例如：
She learnt to swim when she was eight years old.
→She learnt to swim at the age of eight. 她八岁时学会了游泳。
You will get fat if you don’t take enough exercise.
→You will get fat without enough exercise. 没有足够的锻炼，你会变胖的。
Jim couldn’t go to the party because he had too much homework.
→Jim couldn’t go to the party because of too much homework. 吉姆因为有太多家庭作业而无法去参加聚会。
2.含有宾语从句的复合句与简单句之间的转换
在英语中，我们可以用含有介词的动词短语把含有定语从句的复合句改为简单句，常用的“动词+介词”结构的短语有: remind sb. of sth.（使某人想起某物）； be sure/certain about（对……确信）。例如：
The photos remind me that I travelled to London five years ago. → The photos remind me of the trip to London five years ago. 这些照片让我想起我五年前去过英国旅行。
I’m sure that Kate will come to my birthday party. → I’m sure about Kate’s coming to my birthday party. 我确定凯特会来参加我的生日派对。
3.含有定语从句的复合句与简单句之间的转换
在英语中，我们可以用“with...”“in...”等介词短语，把含有定语从句的复合句改为简单句。例如：
Do you know the girl who is holding a book in her hand → Do you know the girl with a book in her hand 你认识手里拿着一本书的女孩吗？
The man who wears a blue shirt is our English teacher. → The man in a blue shirt is our English teacher. 那位穿着蓝色衬衫的男士是我们的英语老师。
注意：进行简单句和复合句转换时要注意时态和意思的一致性和准确性。
基础达标
一、根据句意和中文提示写出单词。
1.There is no ______（怀疑） that Nanning will develop into a
modern city in the near future.
doubt
2.Please ______（将……圈起来） the new words and look them up in
the dictionary.
circle
3.Some parents warn their kids not to speak to _________（陌生人）.
strangers
4.After discussing the project several times, they reach an __________
（协议） finally.
agreement
5.—Are you ______（知道的） what transport could be like on Mars
—It could be better than that on the Earth.
aware
二、用括号内所给词的正确形式填空。
1.Miss Green left the office without _______（say） a word.
saying
2.With a large score difference and little time left, there is a strong
__________（possible） that we will lose the football game.
possibility
3.Humans are thinking about ________（move） to another planet.
moving
4.You’d better not put your ________（person） information on the
website.
personal
5.Now a large number of children are becoming fatter and fatter
because of _______（take） in too much junk food.
taking
三、单项选择。
1.The police would have had a hard time solving this murder case
________ the help of the Internet.( )
C
A.with B.for C.without
2.Everyone should be ________ of the importance of environmental
protection. ( )
C
A.afraid B.proud C.aware
3.—What are you doing, Jane
—I’m looking for the dictionary ________ my classmate lent me last
week.( )
A
A.that B.what C.who
4.Since there is no fresh food in the desert, meals won’t be half
________ tasty ________ they are at home.( )
B
A.so; that B.as; as C.so; as to
5.—It rained heavily today. Did you have today’s PE lesson in the
classroom, John
—No. Did you forget that we have a（n） ________ playground in
our school ( )
B
A.large B.indoor C.outdoor
四、将下列复合句转换成简单句。
1.Wang Dazhong went to study in Germany when he was 47.
Wang Dazhong went to study in Germany ___ ____ ____ ___ 47.
at
the
age
of
2.If you don’t work hard, you will fall behind and fail to pass the
exam.
________ hard work, you will fall behind and fail to pass the exam.
Without
3.The woman who is wearing black trousers is my aunt.
The woman ___ black trousers is my aunt.
in
4.Are you sure that your kids are interested in the magazine Muse
（改为简单句）
Are you sure ______ your kid’s ________ in the magazine Muse
about
interest
5.The local guide reminded the children that there were some snakes in
the forest. （改为简单句）
The local guide reminded the children ___ ______ snakes in the forest.
of
some
Integrated skills & Study skills（第五课时）
1.It started with a discussion about a survey. 它以一个关于一项调查的讨论开始。
start with意为“以……开始”，相当于begin with。例如：
Our English lesson often starts with an English song. 我们的英语课经常以一首英文歌曲开始。
【拓展】（1）“start...with...”意为“以……开始……”。例如：
The teacher started his lesson with an experiment. 老师以一个实验开始他的课。
（2）to start with意为“首先，作为开始”。例如：
To start with, when and where did it happen 首先，这件事情在何时何地发生？
2.I’m not sure if it’s worth the risk. 我不确定是否值得冒这个风险。
risk在此处用作名词，意为“危险；风险”。“the risk of...”意为“……的风险”，take a risk意为“冒险”。例如：
They are at the risk of being hurt by the cars when playing in the street. 他们在街上玩的时候有被汽车撞伤的危险。
You are taking a big risk driving so fast. 你开车如此快是在冒很大的风险。
3.Grammar rules are difficult, so I will keep an English diary and try to use the new grammar rules I have learnt. 语法规则很难，所以我要记英语日记，并尽力使用我已学过的这些新语法规则。
keep an English diary意为“记英语日记”。keep a diary则意为“记日记”。例如：
I used to keep a diary. 我过去常写日记。
4.自我评价
自我评价是指你测评一下自己的学习情况，这样才能找出你的优势和不足之处。自我评价能帮助你制订有效的计划，提高你的英语学习。英语的自我评价主要从这几方面入手：（1）你在课堂上说英语吗 （2）你能容易地记住新单词吗 （3）单词拼写你会有错吗 （4）你能很好地学习新的语法规则吗 （5） 你能正确地回答听力问题吗 （6） 你的考试成绩优秀吗
基础达标
一、根据句意和中文提示写出单词。
1.That supermarket is very _________（拥挤的） at weekends.
crowded
2.Don’t drive after drinking. It’s not worth the _____（风险）.
risk
3.—Grandma, why don’t you like the idea of moving to other planet
—Because I am afraid of meeting ______（外星人）, let alone living
with them.
aliens
4.I believe that one of the major _____________（劣势） of living on
Mars is the lack of air and water.
disadvantages
5.Thanks to universal education（普及教育）, the __________（百分率）
of females in engineering has increased greatly.
percentage
二、用方框中所给词的正确形式填空。
carry discuss live read spacecraft
1.Mrs. Green is worried about ______ in such a noisy and polluted
place.
living
2.All we need is enough money to ______ on with our work.
carry
3.Our __________ are so small that they can’t carry lots of people to
Mars.
spacecraft
4.The plans have been under __________ for a year. I hope they will
be carried out soon.
discussion
5.I’m not sure if these novels are worth ________.
reading
三、单项选择。
1.The plan should be ________ right now. After all, it’s related to
traffic safety.( )
B
A.given out B.carried out C.found out
2.—I’m sorry, Sir. I’ve made a lot of mistakes in the exam.
—Never mind. ________, the exam is a little difficult.( )
A
A.After all B.First of all C.Above all
3.Sixty percent of the students in our school ________ from the
villages nearby.( )
B
A.is B.are C.comes
4.Some people think that living on ________ planet could be very
pleasant.( )
C
A.other B.others C.another
5.The birthday party ________ the song Happy Birthday to You.( )
C
A.started in B.started to C.started with
能力训练
四、从方框中选择适当的句子补全对话，其中有一项是多余的。
A: Hey, Tony! Did you do anything special during the winter vacation
B: Yes. I visited the Hawaii Space Exploration Analog and Simulation
habitat（太空探索模拟栖息地）. 1. . And Many astronauts usually
get trained and carry out some special tasks there.
E
A. So what do you think of life on Mars
B. Can you tell me more about it
C. Were you floating all day long
D. How did you get to the habitat
E. People can experience a similar life on Mars there.
F. The food there was in the form of pills and it was not delicious at all.
A: Sounds a cool place! 2. .
B: Compared with life on the Earth, I think life on Mars is much
more challenging.
A
A. So what do you think of life on Mars
B. Can you tell me more about it
C. Were you floating all day long
D. How did you get to the habitat
E. People can experience a similar life on Mars there.
F. The food there was in the form of pills and it was not delicious at all.
A: 3. .
B: Of course. There was low gravity in this place and it made me
feel uncomfortable. I felt my body was out of control.
B
A: 4. .
B: Yes. It was quite terrible.
A: What did you eat Were there any fruit and vegetables
B: No. 5. . In general, I prefer life on the Earth.
C
F
A. So what do you think of life on Mars
B. Can you tell me more about it
C. Were you floating all day long
D. How did you get to the habitat
E. People can experience a similar life on Mars there.
F. The food there was in the form of pills and it was not delicious at all.
Task & Self-assessment（第六课时）
1.Goods from the Earth are hard to find 来自地球的商品很难找到
goods 是名词（复数），意为“商品；货物”，用作主语时，谓语动词一般用复数形式。例如：
Plenty of goods will be sent to the poor families in Africa. 大量的货物将被送往非洲的贫困家庭。
2.They make us feel like we are rally inside the games! 它们让我们感觉像是真的在游戏中!
feel like 意为“感觉像……，摸起来像……”，后可接句子或名词作宾语。例如：
What he said made me feel like he was a professor. 他说的话让我感觉他像是一个教授。
This handbag feels like leather. 这个手提包摸上去像是皮的。
【拓展】feel like还可意为“想要”，其中的 like 是介词，后可跟动名词。例如：
I don’t feel like eating anything. 我什么也不想吃。
基础达标
一、根据句意和中文提示写出单词。
1.The ________（距离） between my home and the train station is
about two kilometres.
distance
2.We have reached a（n） __________（一致） on walking to school
every day.
agreement
3.These _______（商品，货物） are designed for children.
goods
4.The company sells __________（电子的） products such as mobile
phones and computers.
electronic
5.After a whole day’s busy work, we should find some _____________
（娱乐） to relax ourselves.
entertainment
6.It’s hard for us to ________（想象） living in a place where there
is no air.
imagine
7.The ship was found ________（漂浮） in the middle of the Strait of
Gibraltar.
floating
二、用括号内所给单词的适当形式填空。
1.Mars dollars are _______（store） in the Planet Mars Bank.
stored
2._______（live） on Mars would be like living on a very high
mountain.
Living
3.I need a guide to ______（use） this phone.
using
4.The weather is so great that I feel like _______（have） a picnic
outside.
having
5.He preferred ________（shut） himself in the room and listening to
music when he was sad.
shutting
三、单项选择。
1.—What’s the most popular form of ________ in your city ( )
—It’s hard to say. Maybe going to the movies is.
A
A.entertainment B.experiment C.experience
2.Although travelling by air is fast, John prefers ________ a car,
which gives him a sense of freedom.( )
B
A.drive B.to drive C.to driving
3.The whole family were ________ agreement about what they should
do next.( )
B
A.about B.in C.of
4.The game Honor of Kings is interesting, ________ ( )
C
A.is it B.are they C.isn’t it
5.—What do you think of working in that famous hospital
—________. I have to face so much competition.( )
C
A.Relaxing B.Interesting C.Challenging
6.—I have never been to the Summer Palace.
—________. But I plan to visit it next summer.( )
B
A.Me too B.Me neither C.So have I
7.—Have you made a plan to raise money
—Yes. Now we are thinking about how to ________.( )
C
A.pick it out B.put it out C.carry it out
能力训练
四、根据语篇内容，从方框中选择恰当的单词，并用其正确形式填空。每个单词只能用一次。
fact means back influence long
about careful they because danger
Have you ever eaten vegetables from space Do you want to have a try
Space vegetables are grown from the seeds that have been taken
to space and brought 1. . to the Earth. The seeds are
2. . by the radiation（辐射） and low gravity in space. They
produce vegetables that are bigger and healthier than common
vegetables. But some people worry 3. . eating space vegetables.
They think that these vegetables may be bad for 4. . health
because of the radiation. However, people should not be afraid
5. . space vegetables are very healthy. Here are the 6. .:
back
influenced
about
their
because
facts
fact means back influence long
about careful they because danger
The seeds for space vegetables are 7. . chosen. When the
seeds are brought back from space, they are tested to make sure that
the vegetables grown from them will be safe to eat.
Space vegetables are better than common vegetables. For example,
space tomatoes stay fresh for twenty days. It’s one week 8. .
than common tomatoes.
carefully
longer
fact means back influence long
about careful they because danger
Unlike genetically modified（转基因的） food, space vegetables
have not been genetically changed. This 9. . that no new genes
are put into the vegetables. Now you see, there is no 10. . in
eating space vegetables.
means
danger
fact means back influence long
about careful they because danger
素养提升
五、阅读理解。
Mars is the fourth planet from the Sun and the second smallest planet of the Solar System. It is around two times smaller than the Earth with a diameter（直径） of 6,779 km. Mars is widely known as the red planet. Its red appearance is caused by the rusty iron（氧化铁） in the ground.
In many ways, Mars can be considered Earth’s brother. On Mars’s surface, we have discovered the biggest mountain in the Solar System. It is named Olympus Mons, and it is three times bigger than the largest mountain on the Earth. A day on Mars is also a little longer than a day on the Earth. It lasts about 24.6 hours. However, a year on Mars lasts about 687 Earth days. That’s almost twice as long as a year on the Earth!
In the 19th century, it was believed that life on Mars existed. An astronomer said that he “found” straight lines on Mars’s surface. Many
people believed that those were the work of clever life as the straight lines were most likely to be canals for irrigation（灌溉渠）. However, as more advanced telescopes were built, it was found that the straight lines were an optical illusion （视觉假象）.
To this day, humans are still trying to find out whether life existed on Mars.
根据语篇内容，判断下列句子正（T）误（F）。
1.Mars is the second planet from the Sun in the Solar System.( )
F
2.The diameter of Mars is around half of that of the Earth.( )
T
3.Olympus Mons is bigger than any other mountain in the Solar
System.( )
T
4.A day on the Earth is 0.6 hour longer than a day on Mars.( )
F
5.Whether there was life on Mars is still a mystery to this day.( )
T
六、书面表达。
你更喜欢居住在地球上还是火星上呢？假设你校英语角下周将开展一次主题为“The Earth or Mars ”的讨论会，请结合以下提纲内容，发挥想象，用英语写一篇80词左右的发言稿，作出选择并简要说明理由。
Life on the Earth Life on Mars
There is much pollution. Mars would be a clean place
without pollution.
People travel to many places of interest. People would travel to its moons
（卫星） by spacecraft.
Students go to school and have classes. Students could study at online
school.
People drive cars on the roads. Cars could float.
... ...
要求：
1.文章必须包含所提供的主要信息，并作适当发挥；
2.文中不能出现真实姓名、校名等信息；
3.词数80左右（开头已给出，不计入总词数）。
Dear everyone,
#b#
______________________________________________________________
______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
If I could have a chance to choose, I would prefer to live on Mars.
First of all, I think Mars would be a clean place without pollution. And secondly, living on Mars would be more fun. We wouldn’t need to go to school and have classes. We could study at online schools. And we could play lots of exciting games like low-gravity ball games. When we were free, we could take a spacecraft to its two moons and have a good time travelling there. Isn’t it wonderful And we could even drive cars like driving planes because cars could float on Mars. It sounds amazing.
知识清单
重点短语
1._____________在火星上
on Mars
2.___________________到太空旅行
travel into space
3._______________干粮
dried food
4._____________氧气罐
air tank
5.________________睡袋
sleeping bag
6.___________________到2100年为止
by the year 2100
7.______________________________人口的快速增长
the rapid increase in population
8._________________重新
all over again
9.__________________以……的速度
at the speed of
10._______________目前，现在
at present
11.____________________大量
large numbers of
12.____________感到不舒服
feel ill
13.__________________以……的形式
in the form of
14.____________________与……相比
compare to/with
15.___________________与……连接
connect to/with
16._______________________对……有很大帮助
be of great help to...
17._______________开展，执行
carry out
18.______________毕竟
after all
19._______________________记英语日记
keep an English diary
20.__________________________关于……的指南
a guide to （doing） sth.
21.________________毫无疑问
in no doubt
22.__________________在一些方面
in some ways
23.___________________绕……运转
circle around...
24.____________________意见一致
be in agreement
25.__________________与……相似
be similar to...
26._________________知道
be aware of
27.___________________________随着……的发展
with the development of...
重点句型
1.__________________________________________________________________________________________________因为迅速增长的人口，我们自己的行星——地球正变得越来越拥挤，污染越来越严重。
Our own planet, the Earth, is becoming more and more crowded and polluted because of the rapid increase in population.
2.___________________________________________________________________人们有望能够在火星上重新开始，建设一个更美好的世界。
It is hoped that people could start all over again and build a better world on Mars.
3.__________________________________________________________________________________________________________________随着技术的发展，到2100年，乘坐以光速飞行的宇宙飞船（到火星）只要花20分钟左右!
With the development of technology, by the year 2100, the journey might only take about 20 minutes in spacecraft that travel at the speed of light.
4._____________________________________________________________食物很可能会以药片的形式存在，而且味道没那么可口。
Food would most probably be in the form of pills and would not be so tasty.
5.______________________________________________________________与地球上的生活相比，火星上的生活在一些方面要好些。
Compared with life on the Earth, life on Mars would be better in some ways.
6._______________________________________________________________________________到目前为止，没人知道火星上是否有足够的水或氧气供人们（生存下来）。
So far, nobody knows whether there would be enough water or oxygen on Mars for people there.
7._________________________________________________________火星上的重力大约只有地球上的八分之三。
The gravity on Mars is only about three-eighths of that on the Earth.
8.________________________________________________火星生活不仅有挑战性，还会很有趣。
Life on Mars would be interesting as well as challenging.
9._______________________________________________________火星围绕太阳转一圈大约需要两个地球年。
It takes Mars about two Earth years to circle around the Sun once.
10.________________________________我不确定是否值得冒这个险。
I’m not sure if it’s worth the risk.
11._________________________________________这里是未来在火星居住的一份指南。
Here is a guide to living on Mars in the future.
12._______________________________________________它们让我们感觉真的置身于游戏中!
They make us feel like we are really inside the games!
重点语法
简单句和复合句之间的转换（二）
1. 含有状语从句的复合句与简单句之间的转换
可以用at the age of、because of、“without/with...”等介词短语，将含有状语从句的复合句改为简单句。
2. 含有宾语从句的复合句与简单句之间的转换
可以用含有介词的动词短语把含有定语从句的复合句改为简单句，常用的“动词+介词”结构的短语有：remind sb. of sth.（使某人想起某物）； be sure/certain about（对……确信）。
3. 含有定语从句的复合句与简单句之间的转换
在英语中，我们可以用“with...”“in...”等介词短语，把含有定语从句的复合句改为简单句。
注意：转换时要注意时态和意思的一致性和准确性。