课件39张PPT。Unit 4Grammar Words andExpressionsaware
circle
agreement
distance
possibilityadj. 知道，意识到
vt. 围绕；将……圈起来
n. 一致，同意
n. 距离；远处
n. 可能性1. To learn to use adverbial clauses or simple sentences
2. To learn to use object clauses or simple sentences
3. To learn to use defining relative clauses or simple sentences语法讲解建议采用归纳法，如尽可能多的呈现一些相关例句，或可让学生从已学课文中找相应例句，引导学生试着从所观察到的语言现象中总结出语言规则和语法规律。Using adverbial clauses or simple sentencesLook at the following sentences.Neil Armstrong received his student pilot’s licence when he was 16.
Neil Armstrong received his student pilot’s licence at the age of 16.Have a look2. People might float in space because the gravity is low.
People might float in space because of the low gravity.
3. Humans cannot survive if there is no food, water or oxygen.
Humans cannot survive without food, water or oxygen.Neil Armstrong received his student pilot’s licence when he was 16.
Neil Armstrong received his student pilot’s licence _______________.2. People might float in space because the gravity is low.
People might float in space __________ the low gravity.
3. Humans cannot survive if there is no food, water or oxygen.
Humans cannot survive ________ food, water or oxygen.at the age of 16because ofwithoutgo
Ready?Rewrite the sentences using the words in brackets.2. Yuri Gagarin became the first man to go into outer space at the age of 27. (when)Nei Armstrong took his first flight at the age of six.P56 1. Neil Armstrong took his first flight when he was only six.(at the age of)Yuri Gagarin became the first man to go into outer space when he was 27.4. If there is no fresh food, meals will not be as tasty as they are today. (without)3. People might move to another planet in the future because the population on the Earth is increasing rapidly. (because of)People might move to another planet in the future because of the rapidly increasing population on the Earth. Without fresh food, meals will not be as tasty as they are today.5. It would be funny to play football on Mars because of the low gravity. (because)It would be funny to play football on Mars because the gravity is low.6. Without special boots, you cannot walk on Mars. (if…not)If there is no special boots, you cannot walk on Mars. 以上我们已经通过归纳总结和练习对本课的语法内容有了一定的了解，下面就让我们根据之前练习的考察情况进一步选择讲解该语法项的重难点。状语从句和简单句之间的转换1. because 引导的原因状语从句用短语because of可转换成简单句。 He was late for school because it rained heavily.He was late for school because of the heavy rain.我们可以用介词短语把状语从句转换为简单句。2. if not/no引导的条件状语从句可借助without短语转化为简单句。Humans cannot survive if there is no food, water or oxygen.
Humans cannot survive without food, water or oxygen.3. 时间状语从句可借助介词短语转化为简单句。I could swim when I was eight years old.
I could swim at the age of eight.He went home after he finished his work.
He went home after finishing his work.4. so that引导的目的状语从句可用“in order to”或“so as to”转换为简单句。 He decided to buy a camera online so that she could receive it soon.She decided to buy a camera online in order to/ so as to receive it soon.5. so…that…引导的结果状语从句的可用“…enough to do” 结构变成简单句。This hall is so large that it can hold 2000 people.This hall is large enough to hold 2000 people.Using object clauses or simple sentencesLook at the following sentences.The smell of the pills reminds them that food on the Earth is tasty.
the smell of the pills reminds them of the tasty food on the Earth.Have a look2. Are they sure that space travel will be very fast?
Are they sure about the fast speed of space travel?The smell of the pills reminds them that food on the Earth is tasty.
the smell of the pills reminds them _________________________.2. Are they sure that space travel will be very fast?
Are they sure ___________________
______________?of the tasty food on the Earthabout the fast speedof space travelgo
Ready?Rewrite the sentences into simple sentences.1. Are you certain that Tom is satisfied with the plan?2. I don’t know which one I can buy.I don’t know which one to buy.Are you certain about Tom’s satisfaction with the plan?3. I heard she was singing in English.I heard her singing in English.Rewrite the sentences into simple sentences.4. The photos remind me that I travelled to the UK five years ago.5. Do you understand what I said?Do you understand my words?The photos remind me of my trip to the UK five years ago.以上我们已经通过归纳总结和练习对本课的语法内容有了一定的了解，下面就让我们根据之前练习的考察情况进一步选择讲解该语法项的重难点。宾语从句和简单句之间的转换我们可以用介词把状语从句转换为简单句。1. The photos remind me that I travelled to the UK five years ago.The photos remind me of my trip to the UK five years ago.2. Are you certain that Tom is satisfied with the plan?Are you certain about Tom’s satisfaction with the plan?常用的一些动词和介词的搭配有：
Remind somebody of…. 使某人想起…….
Be sure/certain about … 对……确信P57 1. Are you aware ________________________ _____________ (distance)?
2. Do scientists agree _____________________ _____________________________(possibility)?
3. Have they thought ______________________ ___________________(problem)?
4. Are you aware __________________(transport)?
5. I wonder ______________________________ _______________(number)?
6. I think people should know _______________ ___________________________________________(differences).of the distance between Marsand the sunon the possibility of humansliving on Mars in the futureabout the problem of lowgravity on Marsthe number of people liking to of Martian transportmove to Marsthe differencesbetween living on Mars and living on the earthUsing defining relative clauses or simple sentencesLook at the following sentences.People might live in houses which have huge comfortable rooms.
People might live in houses with huge comfortable rooms.Have a look2. On Mars you might see people who wear special boots.
On Mars you might see people in special boots.Look at the following sentences.People might live in houses which have huge comfortable rooms.
People might live in houses __________________________.Have a look2. On Mars you might see people who wear special boots.
On Mars you might see people ______________.with huge comfortable roomsin special bootsgo
Ready?Rewrite the sentences into simple sentences.1. Do you know the girl who is holding two books in her hand?2. The man who wears a blue shirt is our English teacher.The man in a blue shirt is our English teacher.Do you know the girl with two books in her hand?3. We saw the glasses that were on the table fall off onto the floor.We saw the glasses on the table fall off onto the floor.以上我们已经通过归纳总结和练习对本课的语法内容有了一定的了解，下面就让我们根据之前练习的考察情况进一步选择讲解该语法项的重难点。定语从句和简单句之间的转换我们可以用介词把定语从句转换为简单句。1. The girl who is in a hat is Lucy King.The girl in a hat is Lucy King.2. I prefer to stay in a hotel room which has a sea view.I prefer to stay in a hotel room with a sea view.P58 C1 Possible answer:1. Mars is a planet with an environment similar to that of the Earth.2. Astronauts in space suits and helmets might stay on Mars for hours.3. It is difficult to breathe on a planet with much thinner air than that on the Earth.4. On Mars there might be people with air tanks on their backs.P58 C2Possible answer:1. because of the serious pollution on the Earth.2. of the interesting life on Mars. 3. because the gravity is low.4. without football.5. with the same football fields as those on the Earth.Rewrite the sentences into simple sentences.1.She started to learn drawing when she was seven.She started to learn drawing at the age of seven.2. I am sure that the concert tickets will be expensive.I am sure about the high price for the concert tickets.3. I prefer to stay in a hotel room which has a sea view.I prefer to stay in a hotel room with a sea view.1. Review the grammar we’ve learned today.
2. Preview Integrated skills on page 59-60.Homework 课件11张PPT。Unit 4Main taskWords andExpressionsgoods
electronic
entertainment
n. [复] 商品，货品
adj. 电子的
n. 娱乐1. To finish a guide to living on Mars on Page 19
2. To finish the the guide to living on Mars in the future
3. To write your own guide to living on MarsMars火星是太阳系九大行星之一，火星是距太阳的第四个行星，它的体积在太阳系中居第七位，是类地行星中距离太阳最远的一颗，位于地球和小行星带之间，它外观呈现出火红色，因而非常引人注目。火星有两颗小型天然卫星：火卫一和火卫二。
火星的表面沙砾遍地，十分荒凉沉寂，遍布遭陨星袭击后因撞击形成的坑坑洼洼。Mars火星平均气温为零下五十五摄氏度,温差较大：在夏季的昼间，气温最高为二十摄氏度，而在冬季，气温则可低达零下一百多摄氏度。
火星上经常有强风，因而常导致大范围的尘暴。它大气非常稀薄，它的主要成份是二氧化碳，其他成份还有氮、氩、氧等。水在火星大气中的比重只有百分之零点零三。因而火星表面异常干燥。 Now use your imagination:
What will life be like on Mars in the future?Help Daniel complete the spidergram below to organize his ideas.FBEHDGACHelp Daniel complete draft. Use the information on page 62 to help you.onlinePlanet Mars Banktwo moonsbasketball gamesshops mallsspace clotheshard to findno air pollutioncomfortablefloats in the airYou also want to write a guide to living on Mars. First, make a spidergram like Daniel’s on page 62. Then write the guide and include some drawings.Sample writing:What will our life be like on Mars in the future? With the rapid development of hi-tech, the Mars will change a lot in many ways in the future. We'll completely live in the cyberspace. First, we find the Mars haven't been polluted. Air and water becomes more tidy and fresh than our earth. Second, if we want, we can study in the spaceship. And people don't need to go to the factory to work, instead of working by computer at home. On the other hand, it is very easy for us to visit the Earth and other stars by riding spaceship. I hope all this can come true. But first, we must treasure and protect Mars and avoid it becoming another polluted earth. If all of us try our best to do it, we will enjoy our life.1. Revise?your composition.
2. Review the words and expressions we have learnt in this unit.Homework 课件25张PPT。Unit 4Words andExpressionsMars
helmet
air tank
dried food
power pack
sleeping bag
gravity
n. 火星
n. 头盔
n. 氧气罐
n. 干粮
n. 电源包
n. 睡袋
n. 重力Let’s enjoy some videos.Mars 火星移民1. To know some basic information about Mars
2. To imagine what life would be like on Mars
3. To learn the new words and useful expressionsListen and answer the questions.2. How does Eddie like life on Mars? 1. Where are they?They are on Mars.Why?Eddie hates Mars. Because of the helmet, he can't get to his food.Act it out1. Use different tones (语气).
2. Add your own actions to make the dialogue more interesting.1111Solar SystemWhere is Mars?MarsDo you know anything about Mars? What does it look like?It looks red. So it is also called the Red Planet.火星：太阳系八大行星之一，按离太阳由近而远的次序计为第四颗，比地球小，公转周期约687天，自转周期约24小时37分。公转周期：约687天 自转周期：24小时37分22秒 行星直径：6794 千米 质量：6.4191e20吨 What’s the life like on Mars?pillson Marson Earthfoodpollutionno pollutionon Marson EarthWhat’s the life like on Mars?breathing oxygen We must wear space helmets to go outside.on Marson EarthWhat’s the life like on Mars?Do you know what the following things are? They are necessary when we live on Mars.air tankdried foodpower packspace helmetspecial bootscomputersleeping bagtentRead the conversation and answer the questions.1. Why do we need to wear special boots on Mars?2. What else do we need to live on Mars?3. Why do we have to eat dried food on Mars?4. Is there any pollution on Mars?Because there’s less gravity on Mars.
2. We might need sleeping bag too.
3. Because there is no fruit or vegetables.
4. We don’t know. Amy hopes that there is no pollution on Mars.
gravity?[U]?(force): the?force?that?attracts?objects?towards one another, especially?the?force?that makes things?fall?to the ground
Read and try to recite the conversations in 5-10 minutes.Role-play1. Role play in groups;
2. Role play in front of the classWe’ll see which group does the best.For example:What would it be like to live on Mars?Well, there’s less oxygen on Mars. We would need space helmet and air tank. Right, and we would need special boots, too.I agree with you. And we would have to eat dried food. I think dried food is not quite delicious.Yes, but there would be no pollution on Mars.Well, that’s quite nice.What would it be like to live on Mars. Work in pairs and discuss with your partner. Use the conversation on page 51 as a model.Discussion Do you like to live on Mars? Why or why not?1. I can’t get to my food.
我吃不到我的食物了。Language pointsget to 到达；开始；接触到What time does this train get to New York? 这列火车什么时候到达纽约? How?can?I?get?to?Hilton?Hotel? 我要如何才能到达希尔顿饭店? 1. We’d probably need to wear special boots.
我们可能需要穿特殊的靴子。wear
穿着，戴着；面露；留着（胡须等）When we drove through the gates, she wore a look of amazement.我们驶过大门时，她流露出惊讶的神情。 She wears very little makeup. 她基本上不化妆。 When she's?working?she wears her hair in a?ponytail. 翻译下列句子。 -- 我从未想过到太空旅行。
-- 我也是。
2. 生活在火星会是什么样子的？-- I’ve never thought about travelling into space.
-- Me neither.What would it be like to live on Mars?Homework 1. Learn the new words and expressions by heart.
2. Preview the article:Moving to Mars课件37张PPT。Unit 4Reading Moving to MarsWords andExpressionsplanet
crowded
polluted
rapid
increase
(all) over again
passenger
all a/the speed ofn. 行星
adj. 拥挤的
adj. 被污染的
adj. 快的，迅速的
n. 增加
再；重新
n. 乘客
以……的速度Words andExpressionsuncomfortable
oxygen
in the form of
tasty
specially
float
compare
compare to/withadj. 使人不舒服的；不适的
n. 氧气
以……的形式
adj. 味道好的
adv. 专门地，特地
vi. 飘浮；漂浮
vt. & vi. 比较
与……相比Words andExpressionsinterplanetary
network
challenging
rapidly
adj. 行星间的
n. 网络
adj. 挑战性的
adv. 快地，快速地Let’s enjoy some videos.Moving to Mars1. To learn something about life on Mars
2. To learn the words and phrases in this passageWords:
planet polluted rapid increase
passenger rapidly tasty comparePhrases:
all over again at a/the speed of
in the form of compare to/withPatterns:
It is hoped that…
Here is what life there could be like.
Our spacecraft are too slow to carry…
Robots would do most of their work so that…Focus onDo you think it is possible for human beings to live on Mars?DiscussionLet’s enjoy a video.Read the passage, match the words on the left with the meanings on the right.1.crowded2.rapid3.population4.all over again5.passenger6.tasty7.specially8.comparea.for one purposeb.a second time from the beginc.decide in what way things are similar or differentd.having a nice tastee.full of peoplef.happening in a short period of timeg.a person who rides in a car, bus, train, etc. but does not drive ith.the total number of people in an area, a country, etc.Task oneMatch the keywords with the links. Write the correct letters in the blanks.cdbeaRead the passage and chose the best answer.√√√√Task twoRead the passage and chose the best answer.√√√√Read the passage and answer:
What will life be like? Transport at present 2100How do we get there?How long does it take?How will we get there?How long will it take?Task threeFood What will we eat on Mars?Gravity Will it be a big problem?Why is it a big problem?Why is it very dangerous?To prevent this, what should people do?education What kind of school will students study in?What do they call their teachers?Complete this list. Use the information from the article on pages 52 and 53.Task fourRead the passage carefully and complete the list.Spacecraft would travel at the speed of light.There might not be enough water and oxygen.Food would most probably be in the form of pills and would not be so tasty.People would have to wear special boots.People might live in houses with huge comfortable rooms.People could have more time to relax.Students would study at online schools.Fill in the blanks.The Earth is becoming more and more crowded and polluted _________ the _____________ in population. It is hoped that people could start ____________ on Mars. Here is what life there could be. __________ 2100, the journey to Mars might only take about 20 minutes in spacecraft that travel _____________ light! And food would most probably be ____________ pills and would not be so ______. rapid increasebecause ofall over againBy the yearat the speed ofin the form ofTask fivetastyPeople would have to _______ boots that are specially designed to prevent themselves ________________ (float off )into space. At the same time, people on Mars would have more space. They might live in houses with huge comfortable rooms. Also, robots would do most of their work _______ they could have more time to relax. Life on Mars would be interesting __________ challenging.from floating offso thatas well aswear1. At present, our spacecraft are too slow to carry large numbers of passengers to Mars.
目前，我们的宇宙飞船太慢了，无法运送大批的乘客去火星。Language pointsLarge numbers of 表示“大量的”
= a large number of Large numbers of people go travelling during the National Day holiday. 2. 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!
随着技术的发展，到2100年，乘坐以光速飞行的宇宙飞船，行程或许只要大约20分钟！I was second in the?race?with a?time?of 14.2?seconds. 介词with短语，在句中常用作状语，表示原因、条件、时间、伴随、方式等。我以14.2秒的成绩在比赛中位列第二。By the?time?I got to the station the train had already gone. by 表示“到...为止，截止... ”等我到达火车站时，火车已经开走了。 at a/the speed of 表示“以……的速度”The car is moving at a speed of 100 kilometres per hour.小汽车正以每小时100公里的速度行驶。3. The gravity on Mars is only about three-eighths of that on the Earth.
火星上的重力大约只有地球上的八分之三。The air on Mars is much thinner than that on the Earth.在做比较时，我们常用that/those指代句中类似或相同的那一部分。此句中that指代前面的gravity.火星上的空气要比地球上的稀薄的多。Three-eighths 八分之三
分数在英语中通常是借助于基数词和序数词来共同表达的。其中基数词表示分子，序数词表示分母。如：
one-tenth 十分之一
a third 三分之一
注意：分子除用one外，也可用a；two thirds 三分之二
four fifths 五分之四
但是，1/2不能说a (one) second, 而要说 a (one) half。1/4和3/4可以说 a (one) fourth 和 three fourths, 但常用a quarter 和 three quarters表示。如果分子大于1， 分母要用复数形式。如： 选择题。
About ______ of the students are from foreign countries. (2011山东东营)
A. three four B. three fourth
C. third fourth D. three fourths
翻译句子。
我们班五分之三是女生。
_____________ the students in my class
________ girls.practice Three-fifths ofare4. Compared with life on the Earth, life on Mars would be better in some ways.
与地球上的生活相比，火星上的生活在有些方面要好些。Children?seem?to?learn?more?interesting? things compared?to/with when we were at?school. compared with… 表示“与……相比”
此句中的 “compared with the life on the Earth” 为 v-ed短语作状语。与我们上学时相比，孩子现在学到的有趣东西似乎更多一些。 拓展：
compare ... to 意为“把……比作……”。
Shakespeare compared the world to a stage.
莎士比亚把人世比作舞台。 用compare with 和 compare to
的正确形式填空。
He cannot _____________ Shakespeare
as a writer of tragedies.
2. You cannot _________ this war _____ the
Vietnam war (越南战争).practice compare withcompare to4. Life on Mars would be interesting as well as challenging.
火星上的生活，不仅有挑战性，还很有趣。I?want?to?visit?Andrew as well?as?Martin. as well as 意思为“不但……而且……”我想去拜访安德鲁，还有马丁。 She?shares?(in)?my?troubles?as?well?as?my?joys.她与我同甘共苦。 I. 用括号内所给词的适当形式填空。
There is less air ________ (pollute) in
town that in the city.
2. Look at the newest T-shirt. It’s made
of cotton. I think it will become
__________ (fashion) this summer.
3. It’s ______(high) possible that people
can live on Mars in the future.
4. Grandma is too old _______ (settle)
on another planet.pollution fashionablehighly to settle5. The helmet is made of metal. It’s too
heavy. When I wear it, I feel
_____________ (comfort).
6. My father cooks very well. The food
he cooks is as ______ (taste) as that
in the restaurant.
7. Here are many kinds of moon cakes
for you_________ (choose) from.uncomfortable tastyto choose 8. __________ (compare) with what he
had already, the new stamps were not
very interesting.
9. _________ (hope), doctors have
found a new way to operate on the
patients --- flying hospital.
10. We should keep water from
______ (be) polluted.Compared Hopefully beingII. 翻译下列句子。1. 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.2. 火星上的生活，不仅有挑战性，还很有趣。Life on Mars would be interesting as well as challenging.III. 阅读小短文，回答下列问题。True or false.
1. There was liquid water on Mars long ago.
2. The writer is sure that there is life on Mars.
3. Mars has everything needed for life.
4. It is easy for men to stay on Mars.TFFFHomework 1.To make a list of the things that an astronaut uses
2. Learn all the words in this class by heart.
课件16张PPT。Unit 4Integrated skillsWords andExpressionscarry out
percentage
disadvantage
risk
after all
开展；执行
n. 百分率；百分数
n. 劣势，缺点，不利条件
n. 风险，危险
毕竟1. Would you want to live on Mars?
2. What are the advantages and disadvantages of living on Mars?Living on Mars1. To find the important information from listening material
2. To learn to talk about the advantages and disadvantages of living on MarsLiving on MarsAA1 Listen to the preview and
help Sandy make notes. School in Sunshine Town
Friday
Sunshine TV
Moving to Mars
7:30 to 9 p.m.
50AnswersA2 Listen to the discussion and
help Sandy complete the lists.Advantages of living on Mars
It would be very interesting
we could study at _______________.
it is not so crowded, with much more _______.
Travelling in space would be _____.online schoolsspacefunDisadvantages of living on Mars
We do not know if it is really safe.
We might _______ from living there.
It is ____________ from the Earth.
There is not enough food, _______ or oxygen.
There might be __________ aliens.get illso far awaydangerouswaterA3 Complete the conversation.S: Did you watch the programme called
(1) ______________ on (2) _________
TV last (3) ______ evening?
D: Yes, I did, but I missed the first part
of it. When did the programme begin?
S: It began at (4) __________.
it started with a discussion about a
(5) ________. Moving to MarsSunshineFriday7:30 p.m.survey It showed that (6) ____ of the students
would like to (7) _______________
the Earth and live on (8) _____.
D: Oh, yes. Some students said living
on another planet such as Mars was
would be very (9) ____________.
They could study at (10) ____________,
and travelling in (11) __________
would be fun.
S: There might also be much more 50%move away fromMarsinterestingonline schoolsspace (12) _____ for everyone on Mars.
it’s too crowded here.
D: However, some other students were
worried about living there. They said
they didn’t know if it would be
(13) __________. They thought they
might (14) ______ because there is not
enough food, (15) _____ or oxygen on
Mars.spacereally safeget illwaterS: They were even afraid of
aliens there. They thought
aliens were ___________ and
would harm people.dangerousRead and try to recite the conversations in 5-10 minutes.Role-play1. Role play in groups;
2. Role play in front of the classWe’ll see which group does the best.Earth or Mars?BSpeak upListen to Daniel and Sandy’s conversation. Then, make your own conversation with your classmate. For example:Would you like to live on Mars?Well, I want to. I think living on Mars would be fun. It’s totally a different kind of life.I’m not sure. I don’t know if it would be really safe. There is not enough food, water or oxygen on Mars.Maybe, but I think the scientists will solve that problem.I hope so.Don’t worry, I will stay with you. Homework 1. Preview Study skills on page 61.
2. Preview Task on page 62-63.
