(浙江选考)2019版高考英语大二轮复习 专题一 阅读理解提升练5.pdf
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1、阅读理解提升练阅读理解提升练( (五五) )A A(2018浙江余姚中学高三押题卷一)Suppose that you,a college student of somewhat limited means,are in themarket for a used pickup truck.The following ad in a local used car publicationcatches your eyes.2013 Ford Ranger,bilk,4WD,a/c,AM/FM/cass。,showroom condition.Call 2051234 after 5 p。m。Thi
2、s is exactly the kind of vehicle you want,so you call to inquire about theprice。The price you are quoted over the phone is $2,000 lower than the pricefor this model with this equipment listed in a used car guidebook。Instead ofbeing overjoyed,however,you are suspicious。For many products,when you must
3、 pay less than the going rate,you believeyou are getting a great deal.This is not necessarily the case for used cars orother durable goods (washing machines and television sets,for example) becausewith expensive productsor,what is essentially the same thing,products withhigh replacement costsyou mus
4、t be particularly careful about getting a“lemon ”,or a product of substandard quality.In addition to asking the price,the age of a caror any other consumerdurableis a factor when you are trying to determine whether a seller isattempting to unload a lemon.While people have all sorts of reasons for wa
5、ntingto sell their cars-even relatively new carsmost people hold off until they haveput many thousands of miles on a car or until the used car is several yearsold.You would probably be as suspicious of a car that is “too new” as you woulda car that is “too good” a deal。In fact,you are probably willi
6、ng to pay ahigh price for a high-quality used car。While this price would certainly beacceptable to the seller,the competitive market might not facilitate suchtrades。1 1。According to the passage,why will you feel suspicious rather than overjoyedwhen you find a product of an unexpectedly low price?A。B
7、ecause the product is probably not the exact kind you want.B.Because you dont believe you can really get a good deal in the second-handmarket.C。Because you are afraid that you might get a lemon unloaded by the seller.D。Because you are actually willing to pay a higher price for the product.2 2.Which
8、of the following items might be a “lemon” referred to in the passage?A。Some rotting fruit。B。A brand new washing machine.C。A secondhand TV set of high quality.D.A lightvan of low quality。3 3。When you are looking for a proper used car in the market,you should.A。take the age of the car into considerati
9、onB.always put the quality of the car at priorityC。consider the age as well as the price of the carD.consider how many miles the car has runB B(2018浙江学军中学高考冲刺)Lack of electricity and resources in disadvantaged regions around the worldmeans no centrifuge (离心机) in medical labs。Now,a simple new 20-cent
10、invention could change all that。Its based on an unusual source of inspiration:the whirligig(陀螺).Manu Prakash is a physical biologist at Stanford and the inventor of the newproduct。When he visited Uganda in 2013 he found that the clinics had neithercentrifuges nor the electricity to power them.He rea
11、lized that he needed todesign a human-powered centrifuge that costs less than a cup of coffee。When hereturned to Stanford,Prakash began brainstorming ideas with his assistant,SaadBhamla.They quickly concentrated on toys like yoyos and whirligigs。“One night I was playing with a button and string。And
12、out of curiosity,Iset up a high-speed camera to see how fast a button whirligig would spin.Icouldnt believe my eyes,” Bhamla recalled.The button was spinning at 10,000to 15,000 revolutions per minute (rpm).The pair began designing small handpowered centrifuges based on thewhirligig principle。Their f
13、inal model was the Paperfuge。It spins at 125,000rpm,the same as a centrifuge costing $1,000 to $5,000.The Paperfuge is made of a disk of paper coated in a polymer(聚合物).The diskis attached to two pieces of wood or PVG pipe via strings。When the strings arepulled,the disk in the middle spins。This acts
14、as a centrifuge for a bloodsample attached to the center of the disk。The team describes their work in thejournalNature Biomedical Engineering.Once the blood is separated,it needs to be examined by amicroscope.Luckily,several years ago Prakash also created the Foldscope.It is a$1 paper microscope wit
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