精英家教网 > 高中英语 > 题目详情

 How ______ universe came into being is a puzzle to ______ scientists of all generations.

   A. the; 不填    B. an; the    C. a; 不填    C. 不填;the

 

练习册系列答案
相关习题

科目:高中英语 来源:河北省邢台一中2011-2012学年高二下学期第四次月考英语试题 题型:001

听力(共两节,满分30分)

第一节 听下面5段对话。每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项。听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一题。每段对话仅读一遍。

1.What i s Jack' s occupation now?

A.A secretary.

B.A noveli st.

C.A new spaperman.

2.Where doe s thi s conver sation mo st likely take place?

A.In a lab.

B.In a clinic.

C.In a dining hall.

3.How old i s Jane?

A.19.

B.27.

C.35.

4.How often doe s the man go to vi sit hi s teacher?

A.At lea st once a year.

B.Once every two year s.

C.Twice a month.

5.How did the woman feel about the Engli sh program?

A.It' s intere sting.

B.It' s difficult.

C.It' s important.

第二节(共15小题:每小题15分,满分22.5分)

请听下面5段对话。每段对话后有几个小题,从题中所给出的A、B、C三个选项种选出最佳选项。听每段对话前,你将有时间阅读各个小题,每小题5秒钟;听完后,各小题给出5秒钟的作答时间。每段对话读两遍。

听第6段材料,回答第6、7题.

6.How doe s the man seem to feel after thi s job interview?

A.Anxiou s.

B.Hopeful.

C.De sperate.

7.How many interviewee s were able to go to the second interview?

A.4.

B.12.

C.16.

听第7段材料,回答第8、9题。

8.How much will the man pay?

A.15 yuan.

B.55 yuan.

C.50 yuan.

9.How long doe s the Cheaper way take?

A.At lea st two week s.

B.At lea st ten day s.

C.It' s lea st ten week s.

听第8段材料,回答第10至12题。

10.Why doe s the man refu se the fir st flat?

A.It' s too smal1.

B.It' s too expen sive.

C.It' s not on the top floor.

11.Why doe s the woman let the man look at the second flat fir st?

A.He i s clean and quiet.

B.He i s kind and polite.

C.He i s poor and hone st.

12.How much will the man pay before moving in?

A.$100.

B.$50.

C.$30.

听第9段材料,回答第13至16题。

13.What i s Tom doing?

A.Li stening to Engli sh song s.

B.Surfing the Internet.

C.Preparing for a te st.

14.How doe s the woman find studying Engli sh?

A.Intere sting.

B.Boring.

C.Difficult.

15.What doe s the woman sugge st the man do?

A.Play more game s online.

B.Talk with friend s online more often.

C.Learn We stern culture online.

16.What will the woman do next?

A.Go to school.

B.Take an exam.

C.Review le s son s.

听第10段材料,回答第17至20题。

17.Who i s the speaker talking to?

A.People showing intere st in the theater.

B.People working in the building.

C.People vi siting the univer sity.

18.What i s the video showing today?

A.The teacher s of the univer sity.

B.The hi story of the theater.

C.The building s in the city.

19.How soon will people meet again?

A.In an hour and a half.

B.In half an hour.

C.In an hour.

20.What i s the purpo se of the speaker' s talk?

A.To tell people the rule s they should follow.

B.To give people a brief introduction.

C.To show people the direction.

查看答案和解析>>

科目:高中英语 来源:2013届安徽省师大附中高三第七次模拟考试英语试卷(带解析) 题型:阅读理解

SEE a cell phone cover that you like on Taobao? Forget about placing an order, paying the bill online and waiting for days for it to be delivered to you. In the near future, you'll be able to get it in minutes just by hit­ting "print" on your computer.
You might find it hard to believe that you could actually "print" an object like you would a picture. But it is not that hard to under­stand how it would work. Just as a traditional printer sprays (喷) ink onto paper line by line, modern 3-D printers spread material onto a surface layer by layer, from the bottom to the top, gradually building up a shape.
Instead of ink, the materials the 3-D printer uses are mainly plastic, resin (树脂)and certain metals. The thinner each layer is --- from a millimeter to less than the width of a hair ---  the smoother and finer the object will be.
This may sound like a completely new technology, but the truth is that 3-D printing has been around since the late 1980s. Back then, it was barely affordable for most people, so few knew about it.
Last year, though, saw a big change in the 3-D printing industry--- printers became much cheaper. For example, 10 years ago a desktop 3-D printer might have cost £20,000 (200,000 yuan), while now they cost only about £ 1,000, according to the BBC.
Taken out of the factory and in­troduced to more diverse and com­mon uses, 3-D printing can create just about anything you can think of ---flutes (笛子), bikinis, jewelry, aircraft parts and even human organs. In fact, scientists from Cornell Univer­sity in New York have just made an artificial ear using a 3-D printer, accord­ing to Science Daily. The fake ear looks and acts exactly like a natural one.
However, as 3-D printing becomes more commonplace, it may bring about certain problems --- such as piracy. "Once you can download a coffee maker, or print out a new set of kitchen utensils (餐具) on your personal 3-D printer, who will visit a retail (零售的) store again?" an expert in 3-D printing told Forbes News. Even more frightening, what if anyone in the world could use a 3-D printer to print out a fully functioning gun?
【小题1】According to the article, in the future, the 3-D printing technology will ___.

A.enable people to make better purchases online
B.be applied as widely in our daily lives as computers
C.change the way we make many products
D.shorten the time it takes for people to get what they buy online
【小题2】What was the big event happening in the 3-D printing industry last year?
A.The 3-D printing technology was taken out ofthe factory.
B.The 3-D printer became more affordable forconsumers.
C.The 3-D printer was used for medical treatmentfor the first time.
D.3-D printing technology began to be used invarious fields.
【小题3】How is the last paragraph developed?
A.By analyzing a cause and an effect.B.By making comparisons.
C.By giving examples.D.By presenting research findings.
【小题4】What is the best title of the passage?
A.Printing out everythingB.Technology in the future
C.Online shopping disappearingD.Great demand for 3-D printers

查看答案和解析>>

科目:高中英语 来源:2012-2013学年安徽省高三第七次模拟考试英语试卷(解析版) 题型:阅读理解

SEE a cell phone cover that you like on Taobao? Forget about placing an order, paying the bill online and waiting for days for it to be delivered to you. In the near future, you'll be able to get it in minutes just by hit­ting "print" on your computer.

You might find it hard to believe that you could actually "print" an object like you would a picture. But it is not that hard to under­stand how it would work. Just as a traditional printer sprays (喷) ink onto paper line by line, modern 3-D printers spread material onto a surface layer by layer, from the bottom to the top, gradually building up a shape.

Instead of ink, the materials the 3-D printer uses are mainly plastic, resin (树脂)and certain metals. The thinner each layer is --- from a millimeter to less than the width of a hair ---  the smoother and finer the object will be.

This may sound like a completely new technology, but the truth is that 3-D printing has been around since the late 1980s. Back then, it was barely affordable for most people, so few knew about it.

Last year, though, saw a big change in the 3-D printing industry--- printers became much cheaper. For example, 10 years ago a desktop 3-D printer might have cost £20,000 (200,000 yuan), while now they cost only about £ 1,000, according to the BBC.

Taken out of the factory and in­troduced to more diverse and com­mon uses, 3-D printing can create just about anything you can think of ---flutes (笛子), bikinis, jewelry, aircraft parts and even human organs. In fact, scientists from Cornell Univer­sity in New York have just made an artificial ear using a 3-D printer, accord­ing to Science Daily. The fake ear looks and acts exactly like a natural one.

However, as 3-D printing becomes more commonplace, it may bring about certain problems --- such as piracy. "Once you can download a coffee maker, or print out a new set of kitchen utensils (餐具) on your personal 3-D printer, who will visit a retail (零售的) store again?" an expert in 3-D printing told Forbes News. Even more frightening, what if anyone in the world could use a 3-D printer to print out a fully functioning gun?

1.According to the article, in the future, the 3-D printing technology will ___.

A.enable people to make better purchases online

B.be applied as widely in our daily lives as computers

C.change the way we make many products

D.shorten the time it takes for people to get what they buy online

2.What was the big event happening in the 3-D printing industry last year?

A.The 3-D printing technology was taken out ofthe factory.

B.The 3-D printer became more affordable forconsumers.

C.The 3-D printer was used for medical treatmentfor the first time.

D.3-D printing technology began to be used invarious fields.

3.How is the last paragraph developed?

A.By analyzing a cause and an effect.          B.By making comparisons.

C.By giving examples.                      D.By presenting research findings.

4.What is the best title of the passage?

A.Printing out everything                   B.Technology in the future

C.Online shopping disappearing              D.Great demand for 3-D printers

 

查看答案和解析>>

同步练习册答案