3.If your pen broke at school today,what would you do?You would go to a shop and buy a new one.What if you could simply print out a real,working pen with your 3-D printer without leaving your room?
Ten years ago people could only see 3-D printing in science fiction movies.But now 3-D printing is here and it's bringing big changes.
Unlike normal printing that can only copy a 2-D picture with ink.3-D printing can build almost anything made from material.The printer layers(分層) the material in different shapes to create the object you want to be copied.
The 3-D printer has been used to make many different things.People have made cups cars and even an airplane with it.
Doctors have been using 3-D printers for several years.People's nervous systems have been printed out in 3-D form medical research.Some body parts have been printed and used in hospital.Several months ago,doctors used a 3-D printer to rebuild the face of a person who had a bad accident.In the future,it is expected that the printer will make human organs to save more lives.
However there are drawbacks to the printer.At the moment,printing can be quite slow and it's still rather expensive.The average(平均的) price of a household printer is around $1,700,not including the cost of the materials.
But as the technology develops,it shouldn't be long before disadvantages are improved.Only time will tell where this new technology will take us.
根據(jù)短文內(nèi)容,從題中所給的A、B、C、D四個選項中,選擇最佳答案.
63.People could see 3-D printing inBten years ago.
A.large high school
B.science fiction movies
C.digital camera shop
D.hospital
64.People still can't make a(n)Cwith a 3-D printer so far.
A.a(chǎn)irplane
B.face
C.organ
D.cars
65.What does the underlined word"drawbacks"mean?A
A.不足
B.趨勢
C.優(yōu)點
D.影響
66.Which of the following is TRUE?C
A.The normal printer can build 3-D objects you want.
B.No nervous systems are printed out in 3-D form.
C.The 3-D printing can be cheaper and faster in the future.
D.There will be no drawbacks to the 3-D printing in the future.
67.What's the best title of the passage?C
A.The advantages of 3-D printing
B.The disadvantages of 3-D printing
C.The changes brought by 3-D printing
D.The rapid development of science.
分析 這篇短文主要介紹3D打印技術(shù)的發(fā)展及帶給人們生活的變化,當(dāng)然3D打印技術(shù)現(xiàn)在還存在著許多的不足,但是作者相信這些不足會在不久的將來得到改善.
解答 63.B.細(xì)節(jié)理解題.根據(jù)Ten years ago people could only see 3-D printing in science fiction(虛構(gòu)的) movies.可知十年前人們只有在科幻電影中看到3D打印,故選B.
64.C.推理判斷題.根據(jù)In the future,it is expected(期待) that the printer will make human organs(器官) to save more lives.可知現(xiàn)在人們還不能制作人體器官,故選C.
65.A.推理判斷題.上文描述的都是3D打印的優(yōu)點,后面however(然而,但是)發(fā)生轉(zhuǎn)折可知是指其不足,故選A.
66.C.推理判斷題.根據(jù)上文提到不足中有一點是太貴及后文But as the technology develops,disadvantages will be improved可知這一缺點會得到改善,故選C.
67.C.主旨大意題.根據(jù)Only time will tell where this new technology will take us只有時間才能告訴我們這項新技術(shù)將帶我們走到哪里,可知本文重點講述了3D打印給人們帶來的變化.故選C.
點評 本篇是一篇科普知識類閱讀短文.這篇短文主要介紹3D打印技術(shù)的發(fā)展及帶給人們生活的變化.解答時,首先要認(rèn)真閱讀短文,注意前后聯(lián)系,掌握短文大意,然后帶著問題再讀短文,找出相關(guān)段落,分析總結(jié),判斷出正確選項.文章所設(shè)試題主要考察細(xì)節(jié)查找,做題關(guān)鍵是找出原文的根據(jù),認(rèn)真核查小題和原文的異同.