人教新课标高中英语必修三Unit4Astronomy_thescienceofthestarsUnit4Astronomy_thescienceoft(202005150031
人教新课标高中英语必修三Unit 4 Astronomy： the science of the s
UNIT 4 Astronomy: the science of the starsGrammar导学案2学习重点：正确选择关系词并运用主语从句。
学习难点：关系代词和关系副词的用法区别。
课前预习案Previewing Case使用说明及学法指导：1. 自我学习课本29页的内容,完成预习案进行自我检测。
2. 完成时间20分钟。
Task 1 Discussion: Everybody has an amazing mother who gives us life and the whole affection. We thank them very much.Q1：What do you think of your mother? Please share your feelings with us.*I think ____________________________*I wonder_________________________________*I feel _____________________________*I’m sure _________________________________Q2: Do you think you know your mother very well?*What my mother likes is_____________________________________________________*What my mother doesn't like is________________________________________________*What makes my mother happy is_______________________________________________*What my mother needs is_____________________________________________________ Task 2 Listen to a song and fill in the blanks. Here I have given you the lyrics of the song. Although loneliness has always been a friend of mine I'm leaving my life in your hands People say①______I'm crazy and that I am blind Risking it all in a glance②_____ you got me blind is still a mystery I can't get you out of my headDon't care ③____ is written in you history As long as you're here with meI don't care ④____ you are,_____ you're from,____ you didAs long as you love me Who you are Where you're from Don't care ⑤____ you did As long as you love me Every little thing that you have said and doneFeels like it's deep within me Doesn't really matter if you’re on the runIt seems like(as if)⑥_______ we're meant to beTask 3 Revision: Find the subjects in the following sentences.1. A tree has fallen across the road.2. You are a student.3. To find your way can be a problem.4. Smoking is harmful to you.5. What she said is not yet known.6. That we shall be late is certain.7. It’s certain that we shall be late.Conclusion(from 5&6 ): 主语从句：一个句子在________引导下,在另一个句子中充当______(相当于一个___词)的从句。
人教新课标高中英语必修三Unit 4 Astronomy_ the science of the starsUnit 4 Astronomy_ the science of t
Unit 4 Astronomy the science of the starsＩ．单元教学目标技能目标Skill GoalsTalk about the science of the stars, the development of life and space travel and gravity.Practise giving instructions.Practise talking abut problems in study or life.Learn to use Noun Clause s as the subject.Learn to write an essay to show your problems and the way to overe them.II．目标语言功能句式Talk about the science of the stars, the development of life and space travel and gravityWhere do we e from?How did the universe begin?Why is the universe the way it was?How will it end?How much do you know about universe?Do you want to have a space travel?Do you know something about gravity?Do you know something about black holes?Practise giving instructions[]Please look at/ listen to...Please check that...You need...Please pay attention to...Don’t forget to...You’d better...Make sure you...Watch out for...You mustn’t...Practice talking about problems in study or life My problem is...The difficulty is...My trouble is...The question is...My advice is...What I think about it is...The fact is...My suggestion is...词汇1 四会词汇astronomy, system, religion theory atom billion globe violent carbon atmosphere unlike fundamental harmful acid chain multiply oxygen exist thus dioxide puzzle biology biologist gravity satellite gentle physicist climate crash spaceship pull float mass 2认读词汇astronomer, biochemistry, geophysics, solar, Big Bang, vapour, nitrogen, dissolve, am phibian, reptile, generally, mammal, global, et, Issac Newton, Albert Einstein, Stephen Hawking, lessen, weightlessly, cabin, exhaust, exclaim3 词组solar system, in time, lay eggs, give birth to, in one’s turn, carbon dioxide, prevent…from, block out, cheer up, now that,III．教材分析与教材重组1. 教材分析本单元以astronomy the science of the stars, the development of life, space travel and gravity为话题，通过本单元的几篇阅读材料使学生对以上问题有所了解，并通过文章中的一些探讨性的问题，比如，The earth may bee too hot for the lives on it. Then what will our future be? 使学生更好地了解我们的地球和我们的生活环境，并引发对“地球的将来如何”的热烈讨论，通过这些讨论激发学生对天文学了解和探究的强烈兴趣。
人教版新课标高中英语必修三Unit 4《Astronomy the science of the stars》(Reading comprehension)ppt
Green plants grew into forests Later
(1) What life developed after forests appeared?
reptiles on land dinosaurs on land
After that
(2) What life developed after dinosaurs? mammals on land
First
extremely small plants early shellfish
all sorts of fish
Stage 2: The development of life on land
Next
green plants on land insects on land
amphibians on land and in the water
Unit 4
Astronomy: the science of the stars
Hangzhou High School Observatory
1111
In our solar system eight planets circle around the sun.
How to remember the order of the eight planets around the sun? My Very Excellent Mother Just Sent Us Nine Pizzas
Day 4:God created tow great lights(the sun, the moon) and stars.
Day 5: God created living things in the air and sea.
人教新课标高一英语必修三 Unit 4 Astronomy： the science of the
Unit 4 Astronomy: the science of the stars一、短语翻译1. 及时; 终于_________________2. 下蛋_________________3. 产生; 分娩_________________4. 轮到某人; 接着________________5. 阻止; 制止_________________6. 感到高兴; 感到振奋________________7. 既然________________8. 突发; 爆发________________9. 密切注视; 当心; 提防________________10. 挡住(光线) ________________二、用括号里所给词汇的正确形式填空1. As we all know, a bad eating habit is ___________ (harm) to one’s health.2. There ______ (exist) a good way to solve the problem at present.3. This new country came into _____________ (exist) in 1951.4. The ________ (puzzle) look on her face suggested she was ________(puzzle) over the ____________ maths problem. (puzzle)5. I think it’s my turn _____________ (drive) the kids to school this week.6. I was still living in London when the war ________________(break) out.7. They ______________(make) it clear to the public that they did an important and necessary job.三、用适当的介词或副词填空1. As far I’m concerned, there is no harm ________ making an apology to him first.2. Light pollution does harm __________ the eyesight of animals.3. Even though she is a little girl, strange ideas always exist ______ her mind.4. The old man became seriously ill, he has only existed ______ milk ever since.5. He was trying to puzzle __________ why he had been brought to the house.6. If you keep on trying, you will succeed ________ time.7. Where the missing plane has gone still remains a puzzle _______ us.8. When I’m feeling sad, my mother tells me funny stories to cheer me ______.9. Cathy didn’t expect any award but was still there to cheer_________ her friends and praise their accomplishments.四、选用方框里所给词汇的正确形式填空________ to their health2. I’m in a __________ as to what to do next.3. If the train is ________, it should arrive at three o’clock exactly.4. We got to the hospital just ________ to see the newborn baby.5. With five hungry children seated round the table, the food disappeared _________.6. _____________dinner is ready, wash your hands.7. The new stadium built for the 2022 Beijing & Zhangjiakou Winter Olympics will be three times_________ the present one.8. It’s well _________ that Thomas Edison invented the electric lamp.9. Your support is important to our work. ________ you can do helps.10. It is often the case _________ anything is possible for those who hang on to hope.五、选用方框里所给短语的正确形式填空2. I now regularly __________ my phone to check a fact, watch a video, read weibo.3. The police car signaled to us to __________.4. They are _______________ those houses to make room for a new hotel.5. Everyone was very concerned whether he would _______________ or not.7. We had to ________________ the house as we had lost the key.8. He ________________ the chocolate and gave each child a small piece.9. They were arguing but ________________ when someone came into the room.10. Does everyone know what to do if a fire ________________?12. When it’s _________________, I am too excited to speak.13. The young parents had to _____________ to look after their sick baby.14. It’s _____________that this young man was none other than the old man’s son.六、完成句子1. Some boys are too crazy about playing games on the computer, and ___________ (这对他们的健康非常有害).2. ___________________________(使医生最困惑的) was that they could not find the cause of the disease.3. ___________________________(我们发现是不可能的) to climb to the top of the hill in such bad weather.4. ___________________________(他认为对他来说是重要的)to learn spoken English well.5. ___________________________________(既然你的工作已经做完了), you’d better have a rest.6. Paper produced every year is _________________________(重量的三倍) the world’s production of vehicles.七、翻译句子1. 他们的未来取决于他们在这些考试中的表现。
人教新课标高中英语必修三Unit 4 Astronomy_ the science of 课件
Read the passage again and underline all the discourse markers and sentence connectors.
Plants began to grow on dry land. Insects and amphibians appeared. Reptiles appeared. Dinosaurs appeared. Mammals appeared. Clever animals with hands and feet appeared.
the rise of _m__a_m__m_a_l_s_
Comprehending
Read the passage carefully and analyse its structure. Write the main idea for each paragraph.
Para. 1 Para. 2 Para. 3
early _s_h_e_l_lf_i_sh__ and all sorts of fish
green plants on land
amphibians
land animals
insects
__r_e_p_t_il_e_s ___
huge animals (dinosaurs)
human beings
carbon nitrogen water vapour _g_a_se_s_
the earth’s _a_t_m__o_sp_h__er_e___
人教新课标高中英语必修三Unit 4 Astronomy_ the science of the starsUnit 4 Astronomy_ the science of t
Unit 4 Astronomy: the science of the starsTeaching goals 教学目标1 Target language目标语言a重点词汇和短语preparation, instruction, unexpected, a set of, pay attention to, as well asb交际用语Practice giving instructionsPlease look at/ listen to…Please check that…You need…Please pay attention to…Don’t forget to…You’d better…Make sure you…Watch out for…You mustn’t…2 Ability goals 能力目标a. Enable the Ss to make a list of things that they need.b. Enable the Ss to talk about giving instructions.c.. Enable the Ss to play different roles in a conversation.3Learning ability goals 学能目标a. Learn how to make a list of things that they needb Help the Ss learn how to talk about giving instructionsc. Enable the Ss learn how to play different roles in a conversation. Teaching important and difficult points教学重点难点a. Teach the Ss how to how to talk about giving instructionsb. Help the Ss to learn how to play different roles in a conversation. Teaching methods教学方法a. Pairs work and group workb. Discussion and cooperative learningTeaching aids教具准备1 A computer2 A projectorTeaching procedures & ways教学过程与方式Step I RevisionAsk some of the Ss to read his / her passage about gravity.One possible passage:Sir Isaac Newton: The Universal Law of GravitationThere is a popular story that Newton was sitting under an appletree, an apple fell on his head, and he suddenly thought of theUniversal Law of Gravitation. As in all such legends, this isalmost certainly not true in its details, but the story containselements of what actually happened.What Really Happened with theApple?Probably the more correct version of the story is that Newton,upon observing an apple fall from a tree, began to think alongthe following lines: The apple is accelerated, since its velocity changes from zero as it is hanging on the tree and moves toward the ground. Thus, by Newton's 2nd Law there must be a force that acts on the apple to cause this acceleration. Let's call this force "gravity", and the associated acceleration the "accleration due to gravity". Then imagine the apple tree is twice as high. Again, we expect the apple to be accelerated toward the ground, so this suggests that this force that we call gravity reaches to the top of the tallest apple tree.Sir Isaac's Most Excellent IdeaNow came Newton's truly brilliant insight: if the force of gravity reaches to the top of the highest tree, might it not reach even further; in particular, might it not reach all the way to the orbit of the Moon! Then, the orbit of the Moon about the Earth could be a consequence of the gravitational force, because the acceleration due to gravity could change the velocity of the Moon in just such a way that it followed an orbit around the earth.This can be illustrated with the thought experiment shown in the following figure. Suppose we fire a cannon horizontally from a high mountain; the projectile will eventually fall to earth, as indicated by the shortest trajectory in the figure, because of the gravitational force directed toward the center of the Earth and the associated acceleration. (Remember that an acceleration is a change in velocity and that velocity is a vector, so it has both a magnitude and a direction. Thus, an acceleration occurs if either or both the magnitude and the direction of the velocity change.)But as we increase the muzzle velocity for our imaginary cannon, the projectile will travel further and further before returning to earth. Finally, Newton reasoned that if the cannon projected the cannon ball with exactly the right velocity, the projectile would travel completely around the Earth, always falling in the gravitational field but never reaching the Earth, which is curving away at the same rate that the projectile falls. That is, the cannon ball would have been put into orbit around the Earth. Newton concluded that the orbit of the Moon was of exactly the same nature: the Moon continuously "fell" in its path around the Earth because of the acceleration due to gravity, thus producing its orbit.By such reasoning, Newton came to the conclusion that any two objects in the Universe exert gravitational attraction on each other, with the force having a universal form:The constant of proportionality G is known as the universal gravitational constant. It is termed a "universal constant" because it is thought to be the same at all places and all times, and thus universally characterizes the intrinsic strength of the gravitational force.Step II PresentationT: Do you remember the conversation between Li Yanping and Professor Wallis?S1: Yes.T: We all know that space walk is difficult and dangerous. What should an astronaut take with him? S2: oxygen can.S3: spacesuit.S4: gravity boots.S5: water system.S6: special food.S7: special ropes.T: Great! Do you know the usage of them? Now discuss them with your partner according to the form on Page31. You can refer to our listening material on Page65.When Ss discuss. Teacher walk around the classroom to give them some help.Step III Speaking (Page31)(After a few minutes.)T: Have you finished? Now speak one or two sentences for each equipment you should take.Sa: I will take water with me in my spacesuit in order to warm or cool me if it’s too cold or too hot. Sb: I will take oxygen can on my back in order to help me breathe oxygen in space.Sc: I’ll wear spacesuit. t can protect me from many dangers. It can carry many necessary things in or on it.Sd: I’ll take space buggy in order to travel on the moon.Se: I’ll take a rope to tie me to the spaceship, or I’ll fly away.Sf: I’ll take special food so that I can eat easily, because the food will float in space.Sg: I’ll wear special sunglasses in order to protect my eyes.Sh:I’ll take space camera in order to take photos.T: Wonderful! Anything else?Si: I’ll wear space boots in order to walk there.T: Very good. You’ve done an excellent job! Do you know how to fill in the form now?Ss: Yes.T: Now look at the screen and check your answer.Sample answer:Step IV Talking (Page62)The task asks the students to work in pairs and give a friend a number of “does” and “don’ts” for going into space. They need to make suggestions using the phrases that they have been given to help them. When they have worked out the advice they can write the suggestions down and read them out to the class.Show the useful expressionsPlease look at/ listen to…Please check that…You need…Please pay attention to…Don’t forget to…You’d better…Make sure you…Watch out for…You mustn’t…T: Now discuss it in pairs. Then I will ask some pairs to read out their instructions.Sample dialogue:S1: I’m going to visit a comet. I’m leaving tomorrow.S2: How exciting! Please check that you have got the correct sort of spacesuit. You need the kind that will keep you warm if it’s too cold.S1: Of course!S2: Make sure you know all the safety rules. It’s not safe to stand on a comet or get too close.There is always a strong wind in space.S1: I won’t leave the spaceship except that I take photos.S2: Photos? Just think of the dust in the air. It will make taking photos very difficult.S1: Well, I’ll take some anyway.S2: Watch out for the space wind! It can be very dangerous.S1: Yes, I know that.S2: Don’t forget to watch the time as you leave the earth. Please pay attention to everything your space guide says. Don’t go off on your own. Look at your temperature on your spacesuit all the time. If it’s too low you need to warm it up and if it’s too high you need to cool it down. Anyway, have a good trip!S1: Thank you. I will.Step V Speaking Task (Page67)The purpose of this task is to use the information the students have gained from the listening text and reading passage in a new situation. They are going to interview the astronomer in our story, Li Yanping, for a newspaper. So in pairs the need to work out some questions to ask him. Each of the pairs needs to think of three different questions. And try to find the answers.Questions and answers:1.What was the most unexpected thing you found out about black holes?The black hole threw out material as well as ate objects.2.How did you know you had got close to a black hole?You can see things disappear into what appears to be an empty space. That’s a black hole.3.What was the most frightening thing that happened to you on this journey?When the gravity of the black hole was pulling us to it’s mouth, and then the spaceship moved round the hole and began to go faster and faster into it; I was terrified because I thought we would be eaten by the hole.4.Why did your watch move slower when your spaceship moved around the hole?I’m not clear yet.5.Have you found something new about black holes?Yes. I thought black holes only eat some objects, but in fact they also spit objects out.Step VI Homework:Prepare for writing a passage about your idea or hopes for traveling in space.。
人教新课标高中英语必修三Unit 4 Astronomy_ the science of the starsUnit 4 Astronomy_ the science of t
Day 2: God spoke and separated the water creating sky and ocean Day 3: God spoke and created dry land Day 4: God spoke and created the sun, moon and stars Day 5: God spoke and created living creatures in the air and sea Day 6: God spoke and created the land animals and man Day 7: God rested and blessed this day calling it Holy
金星 Venus
火星 Mars
水星 地球 Mercury Earth
木星 Jupiter
土星
天王星 Uranus
Saturn
海王星
精品PPT
Neptune
Pre-reading
2. Each religion and culture has its own ideas about how life began on earth. What do you know? In China, we all know that Pangu separates the sky from the earth.
astronomer
精品PPT
solar system
• eight planets • many comets • other objects
人教版(新课程标准)必修三：Unit4 Astronomy the science of the s
必修三：Unit4 Astronomy: the science of the starsSection Ⅰ：Warming up、Pre-reading and Reading【拓展训练】：A级测评：（认真填一填，打基础!）Ⅰ．用所给单词的适当形式填空。
1. There ______ a good way to solve the _____ problem.（exist）2. It’s said that Li Yang who had started ‘Crazy English’ used domestic____, which showed that he was a ___husband. (violent)3. Smoking is___________ to your health and it will do _______to your lung. (harm)4. The ________ expression on her face suggested she was ____________ by the _______ maths problem. (puzzle)5. Zhao Benshan held a birthday party in a five-star hotel. Everyone ________ at the party was ________ with a ________ for their _________. (present)II1. Drinking is good to our heart, but too much drinking ______________________ our health.2. He will be on duty _______ tomorrow.3. We can’t ______ people ____ saying what they think.4. We should thank our mother, for she ________________ us and gave us life.5. He studied so hard that he achieved his goal ________.B级测评：（努力做一做，重运用！）I.单项填空1. His plan is excellent in ______, but I don’t think it will work in practice.A. theoryB. exerciseC. themeD. paper2. The ______ cause which led to his business failure was that he relied too much on other people.A. totalB. specialC. naturalD. fundamental3. The shops and streets are very lively. They already have a New Year ______.A. situationB. stateC. atmosphereD. custom4. It is commonly believed that ___________ programmes and video games really cause people to become more aggressive.A. fierceB. violentC. cruelD. fearful5. The talks between the two delegations are expected to ________ economy, business trade and other topics too.A. sayB. coverC. talkD. negotiateII.阅读理解European astronomers have discovered 50 new planets beyond our solar system, including 16 which are a similar size to Earth. This is the largest number of such planets ever announced at one time.The biggest planet of the new batch（一批）is HD85512b, which is 3.6 times the areaof Earth and can be found 36 light-years away in the Vela constellation(船帆座).The findings suggest that more than half of the stars like our sun possess planets, and that many of those worlds are lighter than Saturn(土星).HD85512b is the only one of new planets, called 'super-Earths' that is located in its star system's habitable zone. That's the area where scientists believe water could exist, in liquid form, making a planet potentially habitable.Super-Earths are of particular interest to planet-hunters because it's thought that they could be even more helpful to the development of life than our own planet.This discovery was made by The High Accuracy Radial Velocity Planet Searcher (HARPS)，which is installed at the European Southern Observatory's La Silla Observatory in Chile.HARPS can sense the slight gravitational wobble(引力摇摆)caused by planets as small as Earth, if they have unbelievably close-in orbits（轨道）.HARPS' observations of 376 sunlike stars has led the team to conclude not only that more than half of such stars are surrounded by planets, but also that about 40 percent of them have at least one planet smaller than Saturn.One of the team members, Lisa Kaltenegger, of the Max Planck Institute for Astronomy and the Harvard Smithsonian Centre for Astrophysics, said the latest round of findings marked a new age in the search for habitable planets.1. What information can we get from the first paragraph?A. About 32 percent planets have a similar size to Earth in solar system.B. 50 new planets is the largest number of such planets ever announced.C.16 planets are the largest number of such planets ever announced at one time.D. 50 new planets beyond solar system have been discovered.2. Which of the following information about the HD85512b is false according to the passage?A. HD85512b is the biggest planet of the new batch—discovered 50 new planets.B. HD85512b is 3.6 times the mass of Earth.C. HD85512b is located in its star system's habitable zone, whose water exists in gas form.D. HD85512b can be found 36 light-years away in the Vela constellation.3. Why scientists believe that the HD85512b is a a potentially habitable planet?A. Because HD85512b is dubbed 'super-Earths'.B. Because HD85512b is located in its star system's habitable zone where scientists believe water could exist, in liquid form.C. Because HD85512b is the biggest planet of the new batch.D. Because HD85512b is 3.6 times the mass of Earth and can be found 36 light-years away.4. What is the conclusion based on HARPS’ observation?A. More than half of such stars are surrounded by planets.B. About 40 percent of them have over one planet less massive than Saturn.C. The latest round of findings marked a new age in the search for habitable planets.D. Both A and B.5. what does the underlined word in paragraph 4 mean?A. suitable for livingB. large enoughC. hot enoughD. cold enoughC级测评：(大胆试一试，测能力！)完成句子，根据汉语意思用上括号中所给的单词完成句子。
高中英语必修三：Unit4Astronomy_thescienceofthestars―人教标
JAPAN: Radiation level is still rising
One Earth, One Home Heal the world Make it a better place For you and for me and the
entire human race
Homework
arrival of small plants in water
plants
early shellfish animals
all sorts of fish many kinds
early shellfish A few kinds
Plants on land land
Plants in the water water
Para 4: Find out the following words.
1. small plants in water
2. shellfish and all sorts of fish
4. insects (on land) 5. amphibian (on
land and in water)
What problem are these clever animals causing?
What problem are these clever animals causing?
They are putting too much CO2 into the atmosphere
What will happen when we put too much CO2 into the atmosphere?
Cool down
Atmosphere
Water
dissolve harmful gases
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第三册第四单元第三课时词汇导学案B00K3 Unit 4 Astr onomy: the scie nee of the starsLan guage acqua intance (2)Lear ning Goals:1. Lear n some useful words and expressi ons2. Un dersta nd the text better3. Con solidati on of the Ian guage poin ts.Previewing(预习)Task1:补全下面的短语1. _______ time 及时；终于2. ______ eggs 下蛋3. give birth _____ 产生；分娩4. _______ one ' s turn 轮到某人；接着5. p revent ….from __________ 阻止；制止6. block ______ 挡住(光线)7. cheer ______ 感到高兴8. ______ that 既然9. break ________ 突发；爆发10. watch _____ 密切注视；当心11. cool ____ 冷却12. as ______ a s 也；还有…13. depe nd _____ 依靠；依赖14. get close ____ 靠近Task2:用括号中所给提示翻译下列句子。
(1) 移动电话使得我们不论在何处都能与他人交谈。
(make it possible for sb. to dosth.)译Step 1: Lead-i nPlay a game to check what we have lear nt yest erday.Research in class( 课堂探究)Step2:Thi nki ng1. They laid eggs too and existed on the earth for more than 140million years.exist vi. 存在生存existing adj. 现存的existe nee n. 存在生存exist in 存在…之中exist on 靠…为生exist by 靠…生存come into existe nee 开始存在，成立bring into existe nee 使发生，产生(1) It was impossible for them to such a small in come.(2) Some spelli ng mistakes your article _(3) The wild man hunting wild ani mal in the forest.There exists/existed …某地有...There exist two huge stone lions at our compa ny gate.翻译：______________________________ 。
2. because they gave birth to young baby animals and produced milk to feed them. give birth to 产生；分娩她生了一个健康漂亮的女孩.She gave birth to a fine healthy girl.有关birth 的短语：by birth He is French by birth.a sec ond birth= rebirth _______God gave him a sec ond birthat birth _______be of n oble/ good birth ____________介词填空It was reported that a woma n gave birth five babies at a time.She was French birth but lived most of her time in En gla nd.The baby was only 2,000 grams birth.即学即练：1. He gave ___ to a strange idea in his mind that he woul 「d give up schooling andwent in for bus in ess.A. handB. birthC. thoughtD. on birth2. She is good at singing and dancing , so she is a good actress _______ .A. at birthB. by birthC. to birthD. on birth3. Thus they have, in their turn, become the most importa nt ani mals on the pla net1) Thus adv. 因此；从而She studied hard, ___________________ .He forgot to turn on the radio and_____________________ .2) In o ne' s turn 轮到某人It will be ______________ to be on duty tomorrow.有关turn 的短语in tur n _______ by tur ns ________ take turns _________ in return _________ It ' s one ' s turn to do sth.轮到某人做某事。
The childre n called out their n ames in turn.译:We take turns to sweep our classroom = We sweep our classroom 即学即练：(1) People attempt to avoid public transportation delay by using their own cars, creates further problems.A. in shortB. in caseC. in doubtD. in turnall the way, you wouldn ' t have been so much tired.A. by turns C. i n return4. …which prevents heat from escaping frompreve nt sth./ sb. (from) sth./doi ng sth. 阻止某人/某物做某事同义词组：stop …(from)…keep …from •••(此处 from 不能省) Protect sb. from保护某人不受 ... 侵袭，挡住，防御我们被阻止在课室吃早餐. 译： 即学即用：The sno wstorm preve nt the work from ________ on time.A. finishingB. fini shedC. being fini shedD. to finish 5 ….milli ons of years to come will depe nd ondepend on sb. 依靠,相信某人 depe nd on sth. 取决与某物我们都靠你来做决定了. we ll all ________________ to make a decision. 明天是否能开校运会取决与天气.Whether to hold the sports meet ing or not will ______________________ Step2 : Discuss ing Step3 :Prese nting Step4 :Evaluating Step5:Test ing 单项选择1. — Could I have ano ther cup of coffee, Daddy?and this(2) If we had driven A. i n return B in turns C. by turns D. i n our turn.(3) If we smile at life, life will smile on us B. i n turn D. in our turn— ____ It will be hard for you to go to sleep toni ght if you do.A. Better not.B. Why not?C. What for?D. As you wish.2. Zhang Heng, one of ______ best-known Chinese astronomers, showed a strongin ____ astr onomy as a child.A. the; theB. the; 不填C.不填;theD. 不填；不填3. Without gravity, we ____ walk on the gro und as freely as we do now.A. couldn ' tB. mustn ' tC. shan ' tD.needn ' t4. Simon was ____ w hy many of h is friends didn ' t turn up at his birthday party.A. limitedB. crashedC. spottedD. puzzled5. Though I was tired out that evenin g, I ___ from falli ng asleep by the greatpain in my kn ee.A. was preve ntedB. had preve ntedC. has preve ntedD. am preve nted6. See the model ship ____ in the pool? That ' s what my father made for me la weeke nd.B. float ingD. to floatup.B. cheeri ngD. to cheer8. There is a peaceful and calm ____ i n the coun try, quite differe nt from that ofa big city.A. climateB. atmosphereC. systemD. situati on9. It was almost midni ght whe n a fire ___ i n the n eighborhood.A. blocked outB. turned outC. broke outD. died out10. ____ life exists on any other planet in the solar system still remains aquestio n.A. WhyB. WhetherC. HowD. Where11・. Most of the evidence was destroyed in the fire. __ , it would be almost impossible to prove Jim guilty.in tereststA. floatC. floated7. Jack was in low spi rits those days and his friends did all they could himA. chee rC. cheeredA. An yhowB. HoweverC. BesidesD. Thus12. ____ you have worked out the first problem, you may go on to work on the second.A. Even ifB. Un lessC. Now thatD. Though13. —May I have a look at your necklace?—Sure. But be _____ with it —it ' s made of glass and breaks easily.A. viole ntB. fun dame ntalC. gen tleD. genuine14. In my view, choos ing the right bike ___ what you want to use it for.A. d epends onB. does withC. bel ongs toD. acco unts for15. Water, ____ we cannot live, exists in the form of liquid, gas or solid.A. from whichB. on whichC. by whichD. without whichGramma: 主语从句考点一英语中的主语从句(the subject clause) 在句中作主语，有以下两种结构：1) 主语从句位于句首。