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1、Unit 4 Life on Mars课时 2 Reading目标导航重点 词汇1. n.行星2. *adj.拥挤的3. adj.被污染的4. adj.快的，迅速的5. n.增力口6. 再，重新7. n.乘客8. .的速度9. adj.使人不舒服的10. *n.氧气11. 以的形式12. adj.味道好的13. adv.专门地，特地14. vi.漂浮15. vi&vi.比较与相比16. *adj.行星间的17. *n.网络18产adj.挑战性的19.adv.快地，迅速地重点 词组1 .在另一个星球的生活2.变得越来越拥挤和污染2 .由于人口的快速增长4.重新开始4.在火星上建设更好的世界6.目
2、前7 .承载大量乘客去火星8.在科技的发展下8 .以光速行驶10.去火星的行程将会非常不舒服11 .感到恶心12.没有水，氧气和食物就不能生存12 .迄今为止14.特殊设计来防止他们漂浮起来飞进太空15 .某种程度上16.带舒适的大房间的房子16 .有更多的时间休闲18.有趣也很有挑战性19 .从开始第二次20.味道不错20 .一小会儿22.人民的总数23.对人民是大的帮助24.一列不同点重点 句型1.目前我们的太空飞船速度太慢，以至于不能承载大量乘客去火星。2.食物很有可能是以药丸的形式而且将不会很美味。3.在火星上不会有学校。知识点睛一.is becoming more and more
3、crowded and .【精讲】more and more crowded越来越拥挤在英语中，常用（单音节）形容词或副词的比较级+ and +（单音节）形容词或副词的比较级”或“more and more +（多音节）形容词或副词的原级”表示“越来越Because of the Internet, the world is becoming smaller and smaller.less and lcss+不可数名词”和“fewer and fewer+复数可数名词”意为“越来越少的”；“more and more +复数可数名词或不可数名词”意为“越来越多的“the+形容词或副词的比较级
4、+陈述句，the+形容词或副词的比较级+陈述句”，意为“越,越”Generally speaking, the more you pay, the more you get. 一般来说，花钱多，买的东西就多。【随学随练】Lit is very popular and tourists visit it year by year.A. more and more B. fewer and fewerC. less and lessC. less and lessD. more or less2.There are sharing bikes in many cities. So there wi
5、ll be pollution.A. less and less; more and moreB. less and less; fewer and fewerC. more and more; less and lessD. fewer and fewer; less and less二.It is hoped that people could start all over again.【精讲】(all) over again再；重新 all over意为“到处,遍及；浑身”。例：Every year I have to make the decision (all) over again
6、.After drinking some wine, I feel warm all over.喝酒以后，我感到浑身发热。三.too slow to carry large numbers of passengers to Mars.【精讲】large numbers of意为“许多的，大量的”，修饰复数可数名词。a number of意为“一些；许多的；若干的”，相当于many,后接可数名词复数。做主语时，谓语动词用 复数形式，number前面可以用large或small等词修饰，表示程度。Ihe number of意为“的数量”，后面接可数名词复数。作主语时，谓语动词用第三人称单数。例：
7、A number of parents have voiced concern about their childrens safety.The number of companies offering them work increased.【随学随练】.What the number of the students in your school?About two thousand. A number of them from Europe.A. is： arc B. is： is C. arc； is D. arc： arc.lucky number you ve got in the
8、competition!1 . HowB. What C. What anD. What a四. with the development of technology.【精讲】with短语常在句中作状语，表示一种伴随情况或条件。例： With the rapid increase of population, the Earth is becoming more and more crowded.with日其他用法：表示“和一起I will go to the cinema with my friends tonight.表示“用(某种工具)He opened the door with hi
9、s key.他用钥匙开了门。表示“有I sal down on one of (hose modern chairs with holes in it and waited.复含结构“with+宾语+宾语补足语”在句中用作状语，表示伴随，其中的宾语补足语可以是名词、形容 词、副词或介词短语等。He often sleeps with the windows open.【随学随练】He was lying on the bed.他穿着衣服躺在床上。五.that travels at the speed of light!【精讲】speed意为“速度” at a/the speed of以的速度a
10、t a high/full speed以高速/全速at a low speed 以低速.【随学随练】.Light travels faster than sound 300,000 kilometres per second.A. at the speed ofB. with the speedC. in the speed ofD. at the speeds of2 .One day, space shuttles will travel to Mars the speed of light.A. in B. at C. with D. tot takes us less (ime to
11、go co Beijing because the of trains has increased a lot.A. priceB. speedC. spaceD. service六.the journey to Mars might be quite uncomfortable.【精讲】mightmodal v.可能，或许表示可能性较小的推测。must, may, mighi与 can 表示推测的用法：must可能性最大的推测，“一定”肯定句She didnt come to school. She must be ill.may可能性较小的推测，意为“可能”， 肯定句或否定句It may
12、rain tomorrow.He may not come tonight.might可能性最小的推测，意为“可能”， 肯定句或否定句He might arrive on time.I know Kate doesnt like the job, but I might not find it too bad.can否定句或疑问句“不可能，一定不”Can the news be true?七.Food would most probably be in the form of pills.【精讲】in the form of以的形式含有in的常用短语：in all directions四面八方
13、；各个方向in danger处于危险中in fact实际上，事实上in front of在前面in general总的来说；大体上in hospital住院in place在适当位置；准备妥当in public公开地；在别人面前in the lead处于领先地位in the end最后，终于in fear恐惧地in surprise惊讶地in need在困难时，在危难之中in trouble处于困境in prison在监狱（服刑）in order有序，整齐in a hurry匆忙地in all总计；一共in this way以这种方式in order to do sth为了做某事in ones
14、 twenties在某人二十多岁时in ones life在某人的一生中in spring/summer/autumn/winter 在春天/夏天/秋天/冬天 in the 20th century 在 20 世纪A. The gravity on Mars is only about three-eighths of that on the Earth.【精讲】three-eighths num.八分之三英语中分数的表达法：分子用基数词，分母用序数词；分子大于1时，分母变为当数形式；分子与分母之 间可加连字符，也可不加。分数后面常跟of短语，作主语时，谓语动词的单复数和。f后面名词的单复数保
15、持一致。例：Three-fourths of the land is covered by forests in that country.【随学随练】1.of the land in that district covered with trees and grass.A. Two-fifths； is B. Two-fifth； are C. Two-fifth； is D. Two-fifths； are2.Dear, how is your homework going? Oh, mom. Ive just finished of it.A. second three B. two t
16、hird C. second （hrees D. two thirds【基础练习】一.根据句意及汉语提示、首字母提示或上下文语境写出单词1.1 couldnt fall sleep because the bed was so(不舒服的).2. More and more(乘客)would like to take the subway instead of driving cars.3. Some measures must be taken to control the(增长)of the population in the world.4. How many(行星)are there i
17、n the solar system? There are eight.5. (被污染的)air does harm to our health. Its necessary fbr us to keep the air fresh and clean.6. Today is Helens birthday. Her mother bought the cake(专门地)for her.7. The bus is so c that you cant find any more room.8. Do scientists agree that theres a possibility that
18、 h in the fiiture would live on Mars?9. Don,t your children with others. Just let them be themselves.10. Mr Smith often drives his car at the 100 km per hour on the highway.二.用括号中所给单词的正确形式填空Food will be much(tasty) when people feel hungry.1. The world is changing(rapid), and we should keep up with t
19、he pace of change.2. The government is taking action to prevent the forest fire from(spread).3. One Bell, One Road is helpful for the(develop) of the international trade.4. So far, not only the highways but also the railway(connect) the two cities.5. How arc you feeling now? Anything(comfort), dear?
20、 I feci sick, Mum.6. No other organization was able or willing to take on the(challenge) job.7. At the(begin) of the concert, Tan Dun played a piece of music with water.三.单项选择The summer holiday is coming, so the twins as well as Jack to Hong Kong for vacation.A. is going B. arc going C. goes D. goTh
21、e basketball match was really fantastic,when Jeremy Lin scored at the last second.A. probably B. especially C. exactly D. mostlyMum,of the oranges gone bad. Wed better eat up the rest quickly.A. one-third; have B. one-thirds; have C. one-third; has D. one-thirds; has一How are you feeling today? V ni
22、feeling even. I didnt go to school today.A. bad B. worseC. well D. belterDont push past people if they arc. You can wait until they move away.A. in your way B. in some ways C. on your way D. by the wayLook! What a heavy snow! -Oops! Its bad weather we all have to stay at home at theweekend.A. such a
23、; that B. /; so that C. such; that D. so; that7.Which i8 film would you recommend. The Avengers 4 or Capernaum? -Capernaum. This film shows poor kids life is like.A. how B. what C. where D. which一Already five people in the taxi, but the driver managed to lake me as well. Terrible, and it be anuncomf
24、ortable journey.A. can B. should C. must D. need5G technology will change our life greatly. Sure. You know, 5G network will be 100 times faster with 4G network.A. consideredB. compared C. connected D. communicatedCould you tell me? You will stay with an English family and take part in （heir daily li
25、fe.A. when 1 should pay for the course B. what the best part of the course isC. how long the shortest course lasts D. where I can go sightseeing after class【能力拓展了四.根据汉语意思完成句子.随着现代医学的发展，越来越多的疾病能被治愈。modern medicine, more and more diseases can be cured.1 .与三十年前的生活相比，中国现在的生活已经改变了很多。the life thirty years
26、 ago, life now has changed a lot in China.2 .为了防止风筝飘走，你可以把绳子拴在胳膊上。, you can tie the line around your arm.3 .我希望将来火车也能以飞机的速度运行。I hope trains can run planes in （he future.4 .当天气变冷的时候，水以冰的形式呈现。When it gets cold, water is ice.五.任务型阅读Eco-friendly （环保）rain gardens have beautiful flowers, trees and other p
27、lants that beautify the community. They are also healthy for the environment and the people living and working nearby. A rain garden is not very different from a traditional garden. It is just far more cco-fricndly. Usually it is built lower than the ground.Why Eco-friendly Rain Gardens Are Recommen
28、dedRain gardens smartly used rain and storm water by temporarily （暂时）holding water from rain and storms and letting it soak （渗透）slowly into the ground before it runs into streams or enters the public drinking water supply. In this way, a rain garden keeps the water, allowing it to be used as needed
29、by plants in the rain garden, rather than flowing （流）directly into nearby streams and going unused. The water will soak, slowly into the ground within a day or two. This creates an advantage that the rain garden docs not allow mosquitoes （蚊子）to breed （繁殖）.This is a simple, attractive, and eco-friend
30、ly “green“ way to treat storm water.Whats more, planting a rain garden helps cut down on pollution and make the environment better. The gardens dont use expensive machinery and chemicals. They remove harmfi.il chemicals in the rainwater and reduce the amount of pollution reaching streams and rivers
31、by up to 30 %.How to Build Your Own Rain GardensNative （本地的）plants are recommended for rain gardens because they are more used to the local climate （气候），soil, and water conditions. They may attract local wildlife such as native birds. Water your rain garden right after planting and once a week. Dont
32、 water it if you have had at least an inch of rain during the week. You neednt take much care of it once the plants have a necessary root system （根系统）.Often, local governments and private businesses develop large rain gardens in their yards and in public parks, Ilowever, you can do your own part. Yo
33、u dont need to be an environmental engineer to create a rain garden, Just starl by building smaller rain gardens in your yards.Eco-friendly Rain GardensDefinition （定义）Eco-friendly rain gardens are 1 far more eco-friendly gardens under the ground.2 of rain gardensRain gardens use rain in 3 wavs. Rain
34、 water is held and soaks into the ground before running into streams or _ 4 the drinking water supply.They _ 5 _ mosquitoes from breeding.They help to cut down on pollution and 6 the environment. 30% of the pollution is reduced _ 7 using machinery and chemicals.How to build the gardenUse native plants because they are more used and may attract 8.Water the garden _ 9 you have had at least an inch of rain during the week.ConclusionTo create such a garden, you neednt be an environmental 10. Just start bybuilding small ones in your yards.1.2.3.4.5.6.7.8.9.10.