See a cell phone cover that you like on Taoba...

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 hardly 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 common, it may bring about certain problems --- such as piracy(盗版). "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

高二英语阅读理解中等难度题查看答案及解析

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 as 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, modem 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, 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 common, 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. change the way we make many products i

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

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

2.What happened in the 3D printing industry last year?

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

B. The 3-D printer was used for medical treatment for the first time.

C. The 3-D printer became more affordable for consumers.

D. 3-D printing technology began to be used in various fields.

3.How is the last paragraph developed?

A. By giving examples.

B. By making comparisons.

C. By analyzing the cause and effect.

D. By using figures.

4.What is the best title of the passage?

A. Online Shopping Disappearing

B. Technology in the Future

C. Printing out Everything

D. Great Demand for 3-D Printers

高二英语阅读理解中等难度题查看答案及解析

Cell phones are so cheap that almost all people can afford it. _____ you go, you can see people holding cell phones doing different things. Our life style has changed greatly _____ of the widespread of mobile phones.

Mobile phones change _____ way we contact others. In the past, we contacted our families, relatives and friends by writing letters _____ just going to a certain area to make a phone call. Now, if we want to contact them, all we need to do is to take out our cell phone, dial the number and then we can reach _____ in a minute.

With a cell phone, we _____ take photos and locate ourselves easily. All cell phones have a camera function. We can take photos anywhere we want and do _____ need to take our camera. Besides, _____ we are lost, we can use a cell phone to locate ourselves and find the right direction.

高二英语其他题中等难度题查看答案及解析

Your cell phone holds secrets about you. Besides the names and numbers that you’ve programmed into it, traces of your DNA remain on it, according to a new study.

DNA is genetic material that appears in every cell. Like your fingerprint, your DNA is unique to you --- unless you have an identical twin. Scientists today usually analyze DNA in blood, saliva(唾液), or hair left behind at the scene of a crime. The results often help detectives identify criminals and their victims.

Meghan J. McFadden, a biologist at McMaster University in Hamilton, Ontario, heard about a crime in which the suspect bled onto a cell phone and later dropped the device. This made her wonder whether traces of DNA remained on cell phones --- even when no blood was involved. To find out, she and a colleague collected flip-style(翻盖式) phones from 10 volunteers. They collected invisible traces of the users from two parts of the phone: the outside, where the user holds it, and the speaker, which is placed at the user’s ear.

The scientists scrubbed(meaning “cleaned”) the phones using a liquid mixture made mostly of alcohol. The aim of washing was to remove all detectable traces of DNA. The owners got their phones back for another week. Then the researchers collected the phones and repeated collecting traces on each phone once more. They discovered DNA that belonged to the phone’s owner on each of the phones.

Surprisingly, DNA showed up even in swabs that were taken immediately after the phones were cleaned. That suggests that washing won’t remove all traces of evidence from a criminal’s cell phone. So cell phones can now be added to the list of clues that can help a crime-scene investigation.

1.McFadden decided to find out whether people leave their DNA on their cell phones when she ____ .

2.The scientists allowed the volunteers to keep their cell phones for a week in order to____.

3.The last paragraph mainly tells us that cell phones ____ .

4.Which of the following is NOT mentioned in the passage?

高二英语阅读理解简单题查看答案及解析

Have you determined ______ you should buy, an Apple or Nokia cell phone?

A. which　　　 B. what　　 C. that　　　 D. when

高二英语单项填空中等难度题查看答案及解析

Have you ever run into a careless cell phone user on the street? Perhaps they were busy talking, texting or checking updates on WeChat without looking at what was going on around them. As the number of this new “species” of human has kept rising, they have been given a new name — phubbers（低头族）.

Recently, a cartoon created by students from China Central Academy of Fine Arts put this group of people under the spotlight. In the short film, phubbers with various social identities bury themselves in their phones. A doctor plays with his cell phone while letting his patient die, a pretty woman takes selfie（自拍照）in front of a car accident site, and a father loses his child without knowing about it while using his mobile phone. A chain of similar events eventually leads to the destruction of the world.

Although the ending sounds overstated, the damage phubbing can bring is real. Your health is the first to bear the effect and result of it. “Constantly bending your head to check your cell phone could damage your neck,” Guangming Daily quoted doctors as saying. “the neck is like a rope that breaks after long-term stretching.” Also, staring at cell phones for long periods of time will damage your eyesight gradually, according to the report.

But that’s not all. Being a phubber could also damage your social skills and drive you away from your friends and family. At reunions with family or friends, many people tend to stick to their cell phones while others are chatting happily with each other and this creates a strange atmosphere, Qilu Evening News reported.

It can also cost you your life. There have been lots of reports on phubbers who fell to their death, suffered accidents, and were robbed of their cell phones in broad daylight.

1.For what purpose does the author give the example of a cartoon in Paragragh2?

A. To inform people of the bad effects of phubbing.

B. To advertise the cartoon made by students.

C. To indicate the world will finally be destroyed by phubbers.

D. To warn doctors against using cell phones while treating patients.

2.Which of the following is NOT a risk a phubber may have?

A. His social skills could be affected.

B. His neck and eyesight will be gradually harmed.

C. He will cause the destruction of the world.

D. He might get separated from his friends and family.

3.Which of the following may be the author’s attitude towards phubbing?

A. Supportive.　　 B. Opposed.

C. Optimistic.　　 D. Objective.

4.What may the passage talk about next?

A. Advice on how to use a cell phone.

B. People who are addicted to phubbing.

C. The possible consequences of phubbing.

D. Measures to reduce the risks of phubbing.

高二英语阅读理解中等难度题查看答案及解析

Have you ever run into a careless cell phone user on the street? Perhaps they were busy talking, texting or checking updates on WeChat without looking at what was going on around them. As the number of this new “species” of human has kept rising, they have been given a new name — phubbers（低头族）.

Recently, a cartoon created by students from China Central Academy of Fine Arts put this group of people under the spotlight. In the short film, phubbers with various social identities bury themselves in their phones. A doctor plays with his cell phone while letting his patient die, a pretty woman takes selfie（自拍照）in front of a car accident site, and a father loses his child without knowing about it while using his mobile phone. A chain of similar events eventually leads to the destruction of the world.

Although the ending sounds overstated, the damage phubbing can bring is real. Your health is the first to bear the effect and result of it. “Constantly bending your head to check your cell phone could damage your neck,” Guangming Daily quoted doctors as saying. “the neck is like a rope that breaks after long-term stretching.” Also, staring at cell phones for long periods of time will damage your eyesight gradually, according to the report.

But that’s not all. Being a phubber could also damage your social skills and drive you away from your friends and family. At reunions with family or friends, many people tend to stick to their cell phones while others are chatting happily with each other and this creates a strange atmosphere, Qilu Evening News reported.

It can also cost you your life. There have been lots of reports on phubbers who fell to their death, suffered accidents, and were robbed of their cell phones in broad daylight.

1.For what purpose does the author give the example of a cartoon in Paragragh2?

A. To inform people of the bad effects of phubbing.

B. To advertise the cartoon made by students.

C. To indicate the world will finally be destroyed by phubbers.

D. To warn doctors against using cell phones while treating patients.

2.Which of the following is NOT a risk a phubber may have?

A. His social skills could be affected.

B. His neck and eyesight will be gradually harmed.

C. He will cause the destruction of the world.

D. He might get separated from his friends and family.

3.What may the passage talk about next?

A. Advice on how to use a cell phone.

B. People who are addicted to phubbing.

C. The possible consequences of phubbing.

D. Measures to reduce the risks of phubbing.

高二英语阅读理解简单题查看答案及解析

Have you ever run into a careless cell phone user on the street? Perhaps they were busy talking, texting or checking updates on WeChat without looking at what was going on around them. As the number of this new “species” of human has kept rising, they have been given a new name — phubbers（低头族）.

Recently, a cartoon created by students from China Central Academy of Fine Arts put this group of people under the spotlight. In the short film, phubbers with various social identities bury themselves in their phones. A doctor plays with his cell phone while letting his patient die, a pretty woman takes selfie（自拍照）in front of a car accident site, and a father loses his child without knowing about it while using his mobile phone. A chain of similar events eventually leads to the destruction of the world.

Although the ending sounds overstated, the damage phubbing can bring is real. Your health is the first to bear the effect and result of it. “Constantly bending your head to check your cell phone could damage your neck,” Guangming Daily quoted doctors as saying. “the neck is like a rope that breaks after long-term stretching.” Also, staring at cell phones for long periods of time will damage your eyesight gradually, according to the report.

But that’s not all. Being a phubber could also damage your social skills and drive you away from your friends and family. At reunions with family or friends, many people tend to stick to their cell phones while others are chatting happily with each other and this creates a strange atmosphere, Qilu Evening News reported.

It can also cost you your life. There have been lots of reports on phubbers who fell to their death, suffered accidents, and were robbed of their cell phones in broad daylight.

1.For what purpose does the author give the example of a cartoon in Paragragh2?

A. To advertise the cartoon made by students.

B. To inform people of the bad effects of phubbing.

C. To indicate the world will finally be destroyed by phubbers.

D. To warn doctors against using cell phones while treating patients.

2.Which of the following is NOT a risk a phubber may have?

A. His social skills could be affected.

B. He will cause the destruction of the world.

C. His neck and eyesight will be gradually harmed.

D. He might get separated from his friends and family.

3.Which of the following may be the author’s attitude towards phubbing?

A. Objective.　　 B. Supportive.

C. Optimistic.　　 D. Opposed.

4.What may the passage talk about next?

A. Advice on how to use a cell phone.

B. People who are addicted to phubbing.

C. The possible consequences of phubbing.

D. Measures to reduce the risks of phubbing.

高二英语阅读理解困难题查看答案及解析

Have you ever run into a careless cell phone user on the street？Perhaps they were busy talking，texting or checking updates on WeChat without looking at what was going on around them．As the number of this new"species"of human has kept rising，they have been given a new name﹣phubbers（低头族）．

Recently，a cartoon created by students from China Central Academy of Fine Arts put this group of people under the spotlight．In the short film，phubbers with various social identities（身份） bury themselves in their phones．A doctor plays with his cell phone while letting his patient die，a pretty woman takes selfie （自拍）in front of a car accident site，and a father loses his child without knowing about it while using his mobile phone．A chain of similar events eventually leads to the destruction of the world．

Although the ending sounds overstated，the damage phubbing can bring is real．

Your health is the first to bear the effect and result of it．"Constantly bending your head to check your cell phone could damage your neck，"Guangming Daily quoted doctors as saying．"The neck is like a rope that breaks after long﹣term stretching．"Also，staring at cell phones for long periods of time will damage your eyesight gradually，according to the report．

But that's not all．Being a phubber could also damage your social skills and drive you away from your friends and family．At reunions with family or friends，many people tend to stick to their cell phones while others are chatting happily with each other and this creates a strange atmosphere，Qilu Evening News reported．

It can also cost you your life．There have been lots of reports on phubbers who fell to their death，suffered accidents，and were robbed of their cell phones in broad daylight．

1.For what purpose does the author give the example of a cartoon in Paragragh2？

A. To inform people of the bad effects of phubbing．

B. To advertise the cartoon made by students．

C. To indicate the world will finally be destroyed by phubbers．

D. To warn doctors against using cell phones while treating patients．

2.Which of the following is NOT a risk a phubber may have？

A. His social skills could be affected．

B. His neck and eyesight will be gradually harmed．

C. He will cause the destruction of the world．

D. He might get separated from his friends and family．

3.Which of the following may be the author's attitude towards phubbing？

A. Supportive．

B. Opposed．

C. Optimistic．

D. Objective．

4.What may the passage talk about next？

A. Advice on how to use a cell phone．

B. People addicted to phubbing．

C. Measures to reduce the risks of phubbing．

D. Consequences of phubbing．

高二英语阅读理解困难题查看答案及解析

Have you ever run into a careless cell phone user on the street? Perhaps they were busy talking, texting or checking updates on We Chat without looking at what was going on around them. As the number of this new “species” of human has kept rising, they have been given a new name—phubbers (低头族).

Recently, a cartoon created by students from China Central Academy of Fine Arts put this group of people under the spotlight. In the short film, phubbers with various social identities bury themselves in their phones. a doctor plays with his cell phone while letting his patient die, a pretty woman takes selfe in front of a car accident site, and a father loses his child without knowing about it while using his mobile phone, a chain of similar events eventually leads to a series of destruction.

Although the ending sounds overstated, the damage phubbing can bring is real.

Your health is the first to bear the consequence (后果) of it. “Constantly bending your head to check your cell phone could damage your neck,” Guangming Daily quoted doctors as saying. “The neck is like a rope that breaks after long-term stretching.” Also, staring at cell phones for long periods of time will damage your eyesight gradually, according to the report.

But that’s not all. Being a phubber could also damage your social skills and drive you away from your friends and family. At reunions with family or friends, many people tend to stick to their cell phones while others are chatting happily with each other and this creates a strange atmosphere, Qilu Evening News reported.

It can also cost you your life. There have been lots of reports on phubbers who fell to their death, suffered accidents, and were robbed of their cell phones in broad daylight.

1.For what purpose does the author give the example of a cartoon in Para. 2?

A. To advertise the cartoon made by students.

B. To inform people of the bad effects of phubbing.

C. To show the world will finally be destroyed by phubbers.

D. To warn doctors against using cell phones while treating patients.

2.Which of the following is NOT a risk a phubber may take?

A. His social skills could be affected.

B. He will cause a lot of destruction.

C. His neck and eyesight will be gradually harmed.

D. He might get separated from his friends and family.

3.Which of the following may be the author’s attitude towards phubbing?

A. Opposed.　　 B. Supportive.

C. Objective.　　 D. Optimistic.

4.What will the passage most probably talk about next?

A. Consequences of phubbing.　　 B. People addicted to phubbing.

C. Advice on how to use a cell phone.　　 D. Measures to reduce the risks of phubbing

高二英语阅读理解困难题查看答案及解析