貴州廣播電視大學(xué)理工英語(yǔ)4unit4 形考成績(jī)-單元自測(cè)4（10分）答案

1、試卷總分:100 得分:100一、選擇填空：閱讀下面的對(duì)話或句子，從A、B、C三個(gè)選項(xiàng)中選出一個(gè)能填入空白處的最佳選項(xiàng)。?What do you want to be? ? .?I want to have a cup of coffee.?I want to be honest.?I?would study computer science?than dancer.答案:C2.They are testing the 3D printer. Dont you come and see it?What? ? ?Where is it displayed?It really matters.Th

2、ats fine.?答案:A3. Do you prefer a portable?or a clumsy?3D printer? ? .?No, a portable 3D printer is more useful.Yes, I?would not have a clumsy one.I prefer a portable?one to a clumsy one.答案:C4.Shes not very optimistic _ the development?of 3D printing. ?toaboutat答案:B5.3D printers have spread from labs

3、 to industrial?factories, _?they are being cheaper and cheaper. ?soandyet?答案:A6.二、閱讀理解：閱讀下面的短文，根據(jù)文章內(nèi)容從A、B、C三個(gè)選項(xiàng)中選出一個(gè)最佳選項(xiàng)。（課外資料）In the grass, a?baby?duck was hatched ( 孵化 ) out in a college?biology lab with a backward left foot. At the time, it?probably wouldnt have survived,?if?Mike Gary?didnt recom

4、mend a proper operation to cut off that bad foot.Months after the healing process, engineers at Novacopy Company produced a 3D printed?model?that would be used to create a prosthetic?( 修復(fù)的 ) ?foot for?the duck. Considering that ABS plastics were?not flexible enough for this type of exercise, the Nov

5、acopy company made a three-dimensionally modeled foot made of silicone,?with the hope to create a permanent?prosthesis( 假肢 ) ?for the duck.It took just 13 hours to produce. This 3D prosthesis demonstrated the 3D?technologies can?be used not only for human application, but also in foreign subjects su

6、ch as animals and other medical treatments.?Where was the baby duck hatched out?A. In a?college?biology lab.?B. In a back yard.?C. In Noacopy Company.What?was wrong with the baby?duck?A. It didnt survived.?B. It was born with a backward left foot.C. Mike Gary?cut off that bad foot.?Could ABS plastic

7、s be used to?produce a 3D printed?model?that would be used to create a prosthetic?foot for?the duck?A. No, because ABS plastics were?not flexible enough.?B. Yes, but it could only be produced by Novacopy Company.?C. Yes, because it was made of silicone.How long did it take to create a permanent?prosthesis for the duck?A. 10 hours.?B. 13 hours.?C. 30 hours.What did the last sentence of this passage indicate?A.?3D?technologies can?be used only for human application.?B. 3D?technologies can?be used only for?foreigners.?C. 3D techn