同步讲义 Unit 4 第3课时(学生版)

同步讲义 Unit 4 第3课时【答案】重点词汇1.aware2.circle3.agreement4.distance5.possibility6.alien7.stranger重点词组1. work hard to learn more about Mars2.have an environment similar to that of the earth 2. carry air tanks on their backs 4.be solved by building indoor playgrounds5.by the way.重点句型1. It is difficult to breathe on a planet that has much thinner air than that on the earth.2.Humans are thinking about to moving to another planet because the pollution on the Earth is very serious.重点 词汇1. * adj.知道,意识到2. vt&vi.围绕,将...圈起来3. n.一致同意4.* n.距离,远处5. n.可能性6.* n.外星人7. n.外来者，陌生人重点 词组 1.努力了解更多关于火星 2.拥有与地球上一样的环境 3.在背上背氧气罐 4.通过建造室内操场来解决 5.顺便说一下 重点 句型1. 在一个拥有比地球更轻薄的空气的星球上很难呼吸。

2.人们正在考虑搬到另一个星球，因为地球上的污染很严重。

知识点睛jing目标导航jing简单句与从句的转化1. 简单句与状语从句的转化。

【精讲】用介词短语把状语从句转换为简单句①由when,before,after等引导的时间状语从句,可以用相应的介词短语来代替。

例:Neil Armstrong received his student pilot's licence when he was 16.→Neil Armstrong received his student pilot's licence at the age of 16.①由if,unless引导的条件状语从句,可以用由without构成的介词短语来代替。

例:Humans cannot survive if there is no food, water or oxygen.→Humans cannot survive without food, water or oxygen.①由because引导的原因状语从句,可以用由because of构成的介词短语来代替。

例:People might float in space because the gravity is low. →People might float in space because of the low gravity.①由(as...) as引导的比较状语从句,有时可以用“be of the same+名词”结构来代替。

例:Lily is as old as Lucy.→Lily and Lucy are of the same age.莉莉和露西年龄一样大。

【随学随练】将下列句子改为简单句。

1.We’ll play football when school is over.2.You must wash your hands before you have meals.3.People can’t live if there is no air or water.4.We didn’t go there because it rained heavily.【答案】We’ll play football after school.You must wash your hands before meals.People can’t live without air or water.We didn’t go there because of the heavy rain.2.简单句与宾语从句的转化。

【精讲】某些动词后的宾语从句,可以转换为“介词+动名词(短语)”的形式。

例:The smell of the pills reminds them that food on the Earth is tasty.→The smell of the pills reminds them of the e tasty food on the Earth.Are they sure that space travel will be very fast?→Are they sure about the fast speed of space travel?【随学随练】将下列句子改为简单句。

1.He insisted that he should go with us.2.The poor boy doesn’t know when and where he was born.【答案】1.He insisted on going with us.2.The poor boy doesn’t know the time and the place of his birth.3.简单句与定语从句的转化。

【精讲】如果定语从句中的谓语动词have表示“有”的含义,从句可转换成由with构成的介词短语作后置定语。

例:People might live in houses s which have huge comfortable rooms.→People might live in houses s with huge comfortable rooms.On Mars you might see people who wear special boots.→On Mars you might see people in special boots.【随学随练】将下列句子改为简单句。

He is a man who has a lot of money.【答案】He is a man with a lot of money.分层练习【基础练习】一. 根据句意及汉语提示或首字母提示写出单词1. Have you thought about the ________ (可能性) for her to enter the film industry?2. Mr Hart has trained his, daughter for years. Tomorrow he will be watching her anxiously as she swims the long ________ (距离) to England.3. —Are you ________ (知道) how far your home is from your school? —Yes, it’s about 500 metres away.4. —Have you heard of any tales about ________ (外星人) ?—Of course. You can read lots of them from magazines.5. It takes the Earth about 365 days to c________ around the Sun once.6. Many countries in the world have reached an a________ to reduce air pollution.【答案】1. possibility2. distance3. aware4. aliens5. circle6. agreement二. 用括号中所给单词的正确形式填空1. Diana was a little fat in the past. But now she is much ________ (thin) than before.2. We believe we can come up with a way ________ (solve) the problem of pollution in the future.3. The wealthy businesswoman told her own life story without ________ (mention) her poor childhood.4. —I wasn’t willing to accept that her leaving was a ________ (possible) . —Cheer up! She will come back soon.5. —What do you think of the weather in, Nanjing recently?—It’s like magic. Every time the temperature rises above 30 degrees, it drops ________ (rapid) soon after that.【答案】1. thinner2. to solve3. mentioning4. possibility5. rapidly三. 单项选择1. Mr White tells us the calls meeting will be cancelled if no agreement ______ tomorrow.A. is reachedB. will be reachedC. is going to be reachedD. has been reached2. —Look at these beautiful flowers. Do you know what kind of flowers they are?—I’m not sure, They look much the same in shape and size as ______ of roses.A. thisB. thatC. theseD. those3. —Jack, remember ______ off the lights when ______ the home.—OK, I won’t forget, Mum.A. turning; leavingB. to turn; leaveC. turning; leftD. to turn; leaving4. —Do you doubt ______ she has passed the exams?—I’m not doubtful at all ______ she has passed all the exams.A. that; whetherB. whether; thatC. that; thatD. whether; whether5. —Where did you go last week?—I went to Mo Yan’s hometown and visited the house ______ he was born in.A. thatB. thereC. whoD. where【答案】1~5 ADDCA四. 句型转换1. Are you sure about their interest in the magazine? (改为复合句)Are you sure ________ ________ ________ ________ ________ the magazine?2. Mike went to study in Beijing when he was ten. (改为简单句)Mike went to study in Beijing ________ ________ ________ ________ ten.3. Do you know the boy in a black coat over there? (改为复合句)Do you know the boy ________ ________ a black coat over there?4. The teacher told the children. The sun goes up in the east every day. (合并成—句)The teacher told the children ________ the sun ________ up in the east every day.5. If you don’t work hard, you will fall behind and fail to pass the exam. (改为简单句)________ hard work, you will fall behind and fail to pass the exam.【答案】1. that they are interested in 2. at the age of 3. who wears 4. that; goes5. Without五. 根据汉语意思完成句子1. We can’t breathe fresh air __________________ (由于被污染的环境) .2. Please remember __________________ (提醒他们) the time of the meeting.3. I feel Australians __________________ (与我们是相似的) in many ways.4. I study English __________________ (通过听录音带) for two hours every day.5. His shoes __________________ (和我的—样), but they __________________ (与汤姆的不—样).【答案】1. because of the polluted environment2. to remind them of3. are similar to us4. by listening to tapes5. are the same as mine; are different from Tom’s【能力拓展】六. 信息还原A: ___1___B: What? Flying cars? That’s impossible.A: ___2___ Many companies have been trying to make safe ones.B: Really? I know nothing about it.A: ___3___B: Sounds great! What’s it like?A: It is nearly 6 metres long and seats two people. It has wings that can fold. ___4___ And it can turn into an airplane in just 1 second.B: It is very expensive, isn’t it?A: Yes, around one million yuan.B: Wow! ___5___A. It’s reported that one of them plans to sell the flying car.B. So the driver can park it like a car.C. How fast it is!D. Have you heard of flying cars?E. But anyway, it’s worth the price.F. Can they fly high?G. Actually, they are not exactly a new idea.【答案】DGABE七. 完形填空There is no doubt that my grandfather is the most important person in my life. He was more than just my grandfather: he was my teacher, and, I’m ___1___ to say, my friend.There was no safer place than his ___2___ when I was a child. I could watch scary movies sitting there, and he would ___3___ my eyes when there was something really frightening. He taught me how to ___4___ , such as noodles and pizza. I remember, at age five, ___5___ on a chair by the stove as he taught me how to make fried eggs. He would often talk about his mother, whom he loved, having him stand on a chair stirring butter when he was no more than, three years old.He was warm, loving, and firm. No matter what came his way, he always ___6___ it with no more than a shrug. His deep faith carried him through what life had to offer and pulled him out of poverty.My grandfather loved baseball. He always watched games on television and ___7___ explained to us what was going on in the game. When he turned 90, my cousin Bill gave him an autographed (签名的) photo of his favorite player. He was very ___8___ with the present and he almost couldn’t control his ___9___ .He just wouldn’t slow down. Some people have a small garden in their backyard. ___10___ my grandfather had a small backyard surrounding his huge garden! There he would ___11___ many tomatoes that were delicious and very ___12___ with us. He always had something to do and it was always done, well. Whenever anything was ___13___ , it was taken to my grandfather. And he would fix it.It’s as if he just woke up one morning and decided it was “time”. At the age of 92, he became seriously ___14___ and within a few weeks this amazing man passed away. Father of three, grandfather of three, friend of countless people, this man touched and ___15___ all of us and we are better because of him.1. A. proud B. active C. Independent D. worried2. A. hand B. shoulder C. knee D. arm3. A. cover B. hold C. stare D. check4. A. work B. cook C. play D. purchase5. A. sitting B. lying C. standing D. sleeping6. A. created B. caught C. collected D. accepted7. A. smoothly B. angrily C. patiently D. hopefully8. A. confused B. satisfied C. shocked D. tired9. A. agreement B. movement C. disappointment D. excitement10. A. So B. Though C. But D. Because11. A. grow B. sell C. deliver D. share12. A. interesting B. popular C. lucky D. serious13. A. stolen B. robbed C. broken D. thrown14. A. dangerous B. sleepy C. damaged D. ill15. A. caused B. influenced C. expected D. followed【答案】1~5 ACABC 6~10 DCBDC 11~15 ABCDB。