1、第七课时 Self Check【精析】四者都有“花费”的意思，但用法不同。cost主语通常是物，常用于sth.cost(s)sb.some money句型中，意为“某物花费某人多少钱”；spend主语通常是人，常用于spend some money/time(in)doing sth.结构中，意为“花费金钱/时间做某事”，也用于spend money/time on sth.结构中，意为“在某方面花费金钱/时间”；take常用it作形式主语，常用于It takes/took sb.some time to do sth.句型中，意为“做某事花费某人多长时间”；pay主语是人，常用于sb.pay
2、(s)/paid some money for sth.句型中，意为“某人为某物花费多少钱”。【精练】()1.Do you often get online?Yes.I _ lots of time on it.Acost Bspend Ctake Dpay()2.Your new skirt looks very nice.How much is it?It _ me￥200.Acost BpaidCspent Dafforded3She spends an hour reading English every day.(改为同义句)It _ her an hour to _ English
3、 every day.4The new TV cost me 6，000 yuan.(改为同义句)I _ 6，000 yuan _ the new TV.BAtakesreadpaid/spentfor/on【精析】the number of意为“的数量”，后面接名词复数，谓语动词用单数形式；a number of意为“大量；许多”，相当于a lot of，后面接名词复数，谓语动词用复数形式。【精练】()5.There _ a number of members in the Green Life Club.The number of them _ 30 now.Aare；are Bare；i
4、s Cis；is Dis；are()6.A number of tourists _ Dali because its such a beautiful city.Ahave gone to Bhas been toChave been to Dhas gone toBC【精析】take part in意为“参加”，常指参加某项群体活动并在活动中发挥作用；join表示“参加；加入”，通常指参加或加入某个组织或社团，并成为其中一员；join in表示“参加”，后可接比赛、活动等名词。join sb.in(doing)sth.意为“和某人一起做某事”，其中“in(doing)sth.”可省略。【精
5、练】()7.If John _ the talent show，he would win it for sure.Ajoined Bjoins inCtakes part in Dtook part in()8.My brother Jack _ the army for 5 years.Ahas joined Bhas joined inChas been in Dhas taken part inDC一、完形填空。The Development of Electric CarsElectric cars may seem like a recent invention，but they h
6、ave been around for years.In the early 1900s，there were 1 electric cars on the road than gasoline(汽油)cars.Because at that time，gasoline was expensive compared with other fuels(燃料)，and electric cars were more popular.When gasoline 2 dropped and new technologies on gasoline cars were developed，electri
7、c cars were out of date.Gasoline cars became more popular 3 ，because they could go farther without stopping.During the 20th century，gasoline cars got bigger，heavier and faster.They needed more fuel，and it 4 more air pollution.For years，the car makers didnt worry about pollution.They didnt worry abou
8、t how much gasoline cars used，either.But when people began to 5 that there was not enough oil on the earth，they asked car makers to produce more efficient(高效能的)and less polluting cars.One 6 of solving the problem was a“hybrid”car，one that ran partly on gasoline and partly on electricity.Hybrid cars
9、became popular in the 2000s because gasoline prices went up while prices of hybrid cars 7 .An allelectric car uses no gasoline.The problem，however，is that car batteries(电池)need to be recharged(再充电).That makes electric cars not so 8 for long journeys.Many people are not pleased with it.The government
10、 and car makers are working together to 9 safe，cheap and useful electric cars.When more and more people have these electric cars in the future，gasoline stations may 10 .()1.A.fewer Bmore Cfaster Dbigger()2.A.prices Bplaces Cstations Dkeepers()3.A.instead Bstill Cyet Dforever()4.A.pushed Bcontrolled
11、Ccaused Dwasted()5.A.imagine Bstart Ckeep Drealize()6.A.way Bperson Carticle Dstyle()7.A.went out Bwent up Cwent away Dwent down()8.A.different Bsuitable Cdelicious Ddangerous()9.A.describe Bdevelop Cforget Dprotect()10.A.discover BdesignCbuild DdisappearBAACDADBBD二、阅读理解。Wind power is a very clean s
12、ource(资源)of energy.This is how wind power works.Wind makes windmills(风车)spin(旋转).When the windmills spin,they make electricity.Then we can use the electricity.A lot of people think that wind power is new,but thats not true.For thousands of years,people have used wind to sail boats and move water.We
13、still do those things today,but these days we mostly use wind power to make electricity.Wind power is a very popular source of energy.Most people think that we should use it more and more.First of all,its clean.Windmills dont pollute the environment at all.Second,we can use wind power forever.After
14、all,we will always have wind.Also,wind power is cheap,and its getting even cheaper.A lot of people dont understand wind power very well.They believe that there are problems with wind power,but many of those problems are not real.For example，some people say that windmills are dangerous for birds.The
15、idea used to be true,but it isnt true anymore.Old windmills killed birds because they spun very fast.New windmills spin slowly,and they arent dangerous for birds.However,there are real problems with windmills.One problem is that many people think windmills are very ugly.This is a problem for people,
16、because windmills are often in very pretty areas.Also,wind doesnt blow all the time,so we cant use wind power all the time.Finally,windmills are noisy.Wind power is becoming more and more common.Right now,more than 80 countries use wind power.About 25 percent of the worlds power comes from the wind.
17、For some countries,that number is a lot higher.Wind power gives Denmark more than 25 percent of its electricity.()11.When did people start using wind power?AAbout 25 years ago.BAbout 80 years ago.CAbout 500 years ago.DOver 1，000 years ago.D()12.Why is wind power a popular source of energy?aBecause i
18、ts clean.bBecause it sounds believable.cBecause it becomes more convenient.dBecause we can use it for a long time.e.Because its getting cheaper and cheaper.Aa，d，e Bb，c，d Ca，c，d Dc，d，eA()13.Why DONT new windmills kill birds?ABecause they spin slowly.BBecause birds dont fly near them.CBecause new wind
19、mills dont spin.D.Because they are shorter than old windmills.()14.How many problems with windmills are mentioned in Paragraph 5?AFive.BFour.CThree.DTwo.AC()15.What is the best title for the passage?AExpensive WindmillsBDangerous BirdsCPopular and Clean Wind PowerDCommon and Ugly ElectricityC三、综合填空。
20、根据短文内容，用方框中所给词的正确形式填空，使短文完整、正确。(每个词只能用一次，有两个多余词)cost still recycle harmful with affordcause throw includes their bottle butWhen your pen is broken，or you have some food that you havent eaten up，what do you do with these things？You will probably 16._ them into a bin.But actually，all of these pieces o
21、f rubbish need to be sorted(分类)clearly so that some of them can be 17._.As we all know，metal and 18._ are reusable things.We can separate(分离)them from useless litter and reuse them.throwrecycledbottlesIn recent years，some Chinese cities have been working hard on it.Shanghai has worked 19._ Alipay to
22、 create a“green account”service for its users.Users get points by correctly sorting their garbage and can exchange the points for milk，phones and other products through Alipay.The city is asking all of its people to sort garbage into four groups：wet，recyclable，20._ and dry.Wet waste includes things
23、that you dont want 21._ can be used to feed pigs or other animals.Paper，metal and other things can be reused，which are recyclable waste.Harmful waste 22._ things like medicine and batteries.Finally，other waste will go into the“dry waste”bin.withharmfulbutincludesMany other Chinese cities are also us
24、ing this method(方法)to sort 23._ garbage.For example，Shenzhen has been sorting its garbage into the same four groups since 2012.China is improving wastesorting work though it 24._ a lot.There is 25._ a long way to go.But its never too late to learn how to sort your trash properly and protect the envi
25、ronment.theircostsstill四、任务型阅读。阅读下面短文，简略回答所提出的问题。A company in San Francisco，California，has found a way to turn used plastic bottles into womens shoes.Every day，millions of Americans drink water and other liquids from plastic bottles.More than 60 million of them are thrown away each day.Many of the p
26、lastic bottles are thrown in landfills or are burned with other waste products.A San Francisco startup company called Rothys，however，turns this plastic waste into womens shoes.Rothys shoes are sold online.They are flat shoes，with either a rounded or pointed toe.They come in different colors and desi
27、gns.They cost either$125 or$145 per pair，depending on the design.After an American actress discovered them last year，the demand(需求)for the shoes grew.Roth Martin，one of the bosses of the company，says that when the shoes wear out，customers can return them to a company that uses them as materials to m
28、ake other products.For now，the shoes are only available to be shipped(上市)in a few countries.However，the company says it will add international shipping in the near future.Would you like to buy a pair of the environmentally friendly shoes?26How many plastic bottles are thrown away each day in America
29、?More than 60 million.27Are Rothys shoes sold online or at malls?Online.28Why are the shoes sold at different prices?Because of their different designs./Because their designs are different./Because they come in different designs.29Who made the shoes more popular?An American actress.30What will the company do in the near future?It will add international shipping in the near future.