Take a piece of hair from your head.Ouch!It may be long, (1)CC it's not very wide.Three scientists spent over 30 years (2)DD machines that are about a thousand times (3)BB than the width of one piece of your hair.They are (4)CC small that they can only be seen under a microscope(顯微鏡)!The scientists named the machines nanomachines (納米機器).Because of their hard work,the three scientists won the 2016 Nobel Prize in Chemistry.They are all European.
Sir J.Fraser Stoddart,one of the scientists,told reporters that he thanked (5)DD other scientists from 24 different countries for helping make this prize possible.He said he once bought home a chocolate Nobel Prize (6)BB his daughter from a trip to Stockholm.He was very excited (7)CC a real one.
What are nanomachines good for?Scientists believe that in the future,nanomachines could (8)AA deliver medicine inside a person's body,or take away things that are making us sick.
Mr.Feringa compared their work to that of the Wright Brothers.When the Wright Brothers flew their airplane at the beginning,some people questioned what airplanes (9)DD good for.Now we use (10)BB all the time.
(1) | A.a(chǎn)nd | B.or | C.but | D.so |
(2) | A.invented | B.invent | C.to invent | D.inventing |
(3) | A.small | B.smaller | C.smallest | D.the smallest |
(4) | A.such | B.too | C.so | D.very |
(5) | A.hundred | B.hundred of | C.hundreds | D.hundreds of |
(6) | A.by | B.for | C.in | D.a(chǎn)t |
(7) | A.have | B.having | C.to have | D.to having |
(8) | A.help | B.to help | C.helping | D.helped |
(9) | A.is | B.a(chǎn)re | C.did | D.were |
(10) | A.they | B.them | C.their | D.themselves |
【答案】C;D;B;C;D;B;C;A;D;B
【解答】
【點評】
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發(fā)布:2024/4/20 14:35:0組卷:6引用:1難度:0.5
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