Advanced as technology has become now, we sti...

Advanced as technology has become now, we still have no　　 for the common cold.

A. alternative　　 B. substitute　　 C. solution　　 D. cure

高三英语单项填空中等难度题查看答案及解析

Advanced as technology has become now， we still have no 　　　 for the common cold.

A. substitute　　 B. cure

C. solution　　 D. alternative

高三英语单项填空中等难度题查看答案及解析

From talking robots and video phones, technology has become so advanced that the previously impossible seems to occur on a daily basis. And yet—we still have no cure for the common cold.

Why can’t we stop the common cold? According to Peter Barlow, a scientist at Edinburgh Napier University, the main challenge lies in the many different types of cold viruses that are produced by the rhinoviruses (鼻病毒). There are at least 160 types. They change so easily that they quickly become resistant to drugs. In other words, a single cure isn’t likely to work on every type of cold.

However, researchers from Stanford University have found a possible answer. They discovered a protein that the viruses need. Without it, they can't spread inside your body.

To identify the gene which produces the specific protein needed by the viruses, researchers used a gene-editing technique to test all genes one by one for thousands of cells. These modified (改变的) cells were then exposed to a range of rhinoviruses which cause the common cold.

All the viruses were unable to copy inside cells without a gene that produces a specific protein, called methyltransferase (甲基转移酶) SETD3.

Then, they tested genetically modified mice, which were completely unable to produce the protein. The mice were able to live healthy, normal lives without the protein.

“Lacking that gene protected the mice completely from the common cold,”　 associate professor Jan Carette, from Stanford, told the BBC.

“These mice would always die, but they survived and we saw a very strong protection.”

Carette said the plan is to find a drug which can keep back the protein for a limited time, rather than produce genetically modified humans.

“We have identified a fantastic target that all rhinoviruses require and depend on. Take that away and the virus really has no chance,” said Carette.

1.Why does the author mention talking robots and video phones in the first paragraph?

A.To stress the importance of technology.

B.To encourage readers to share their ideas.

C.To introduce the topic of the text.

D.To recognize the progress of science.

2.What can we learn about the protein needed by the viruses?

A.It helps the viruses copy inside our bodies.

B.It stops the viruses from changing easily.

C.It protects the viruses against drugs.

D.It forces the viruses to spread fast.

3.What does Jan Carette intend to do?

A.To identify a fantastic target.

B.To slow copying speed of some genes.

C.To produce genetically modified humans.

D.To find a drug to temporarily block the protein.

4.What is the best title for the text?

A.A New Experiment on Viruses.

B.New Defense Found for Viruses.

C.A Chemical Curing Modified Viruses.

D.Gene-editing Technology to Control Viruses.

高三英语阅读理解困难题查看答案及解析

From talking robots to driverless vehicles, technology has become so advanced that the previously impossible seems to occur on a daily basis. And yet-we still have no cure for the common cold.

Why can't we stop the common cold? According to Peter Barlow, a scientist at Edinburgh Napier University, the main challenge lies in the many different types of cold viruses that belong to the rhinoviruses(鼻病毒). There are at least 160 types.They mutate(突变) so easily that they quickly become resistant to drugs, or learn to hide from our immune systems. In other words, a single cure isn't likely to work on every type of cold.

However, researchers from Stanford University and the University of California, San Francisco, have found a possible answer. They discovered a protein(蛋白质) that the viruses need. All the viruses were unable to replicate(复制) inside cells without a gene that produces a specific protein called SETD3.

To identify the gene which produces the specific protein, researchers used a gene-editing technique to test all genes in the human genome (基因组). Namely, they randomly disabled a single gene in each of the cells, so that the cells lacked one or another of every gene in our genome. These genetically modified cells were then exposed to the rhinoviruses, which cause the common cold. The team then looked at which gene was missing in cells that continued to grow. As it turned out, the one that stood out was SETD3, which makes a protein of the same name.

Carette said the plan is to find a drug which can temporarily disable the protein, instead of producing genetically modified humans. “We have identified a fantastic target that all rhinoviruses require and depend on. Take that away and the virus really has no chance,” said Carette.

1.Which does Peter Barlow think is a problem for fighting the common cold?

A.The poor immunity of patients. B.The large variety of viruses.

C.The lack of enough cures. D.The side effects of drugs.

2.What do we know about the gene-editing study in Paragraph 4?

A.All genetically modified cells survived B.Some genes in our genome were ignored

C.It located the gene responsible for SETD3 D.It exposed the harm of the rhinoviruses.

3.How should we stay away from the common cold according to Carette?

A.Apply gene-editing to human genes B.Avoid contacts with colds patients

C.Prevent cold viruses from mutating D.Develop a drug to switch off SETD3

4.Which of the following is the best title for the text?

A.Potential defense found for cold viruses B.Secrets behind the human genes

C.Real causes of the common cold D.Puzzles over rhinoviruses solved

高三英语阅读理解中等难度题查看答案及解析

From talking robots and video phones to rovers （探测器）on Mars, technology has become so advanced that the previously impossible seems to occur on a daily basis. And yet—we still have no cure for the common cold.

Why can't we stop the common cold? According to Peter Barlow, a scientist at Edinburgh Napier University in the UK, the main challenge lies in the many different types of cold viruses that are produced by the rhinoviruses （鼻病毒），Scientific American reported. There are at least 160 types. They mutate so easily that they quickly become resistant to drugs, or learn to hide from our immune systems. In other words, a single cure isn't likely to work on every type of cold.

However, researchers from Stanford University and the University of California, San Francisco, have found a possible answer. They discovered a protein that the viruses need. Without it, they can't spread inside your body.

To identify the gene which produces the specific protein needed by the viruses, researchers used a gene-editing technique to test all genes in the human genome（基因组）one by one for thousands of cell.

These modified （改变的）cells were then exposed to a range of enteroviruses （肠道病毒）， including the rhinoviruses which cause the common cold.

All the viruses were unable to replicate（复制）inside cells without a gene that produces a specific protein, called methyltransferase（甲基转移酶）SETD3.

Then, they tested genetically（从基因方面）modified mice, which were completely unable to produce the protein. The mice were able to live healthy, normal lives without the protein.

"Lacking that gene protected the mice completely from viral （病毒的）infection,” associate professor Jan Carette, from Stanford, told the BBC.

"These mice would always die, but they survived and we saw a very strong reduction in viral replication and very strong protection."

Carette said the plan is to find a drug which can temporarily suppress（抑制） the protein, instead of producing genetically modified humans.

“We have identified a fantastic target that all enteroviruses and rhinoviruses require and depend on. Take that away and the virus really has no chance," said Carette.

"This is a really good first step—the second step is to have a chemical that mimics（模拟） this genetic deletion,” he added.

1.What does the underlined word "mutate” mean in English?

A.To change a new form.

B.To identify a new gene.

C.To check a modified cell.

D.To cure a viral infection.

2.What is the article mainly about?

A.Why it is so hard to cure the common cold.

B.The possible link between rhinoviruses and the common cold.

C.A possible way to stop viral infections that cause the common cold.

D.The functions of a protein needed by viruses.

3.What does Peter Barlow think is the main problem for prevention of the common cold?

A.The slow mutation of some genes.

B.The fast speed at which rhinoviruses spread.

C.The harm rhinoviruses do to the immune system.

D.The wide variety of cold viruses created by rhinoviruses.

4.What can we learn about the protein needed by the viruses?

A.It helps the viruses replicate inside our bodies.

B.It allows the viruses to change easily.

C.It helps the viruses become resistant to drugs.

D.It increases the spread of the viruses.

5.What did the researchers discover in their gene-editing study?

A.Genetically modified mice died because they lacked the protein.

B.The modified cells seemed to protect the mice against viral infections.

C.More methyltransferase SETD3 was produced after the cells were modified.

D.The gene-editing technique was more effective against enteroviruses than rhinoviruses.

6.What do the researchers plan to do next, according to Carette?

A.Conduct experiments on genetically modified humans.

B.Identify a drug that can help reduce the protein.

C.Apply this gene-editing technique to control other viruses.

D.Find a chemical that can cure all enteroviruses and rhinoviruses.

高三英语阅读理解困难题查看答案及解析

From talking robots and video phones to rovers on Mars, technology has become so advanced that the previously impossible seems to occur on a daily basis. And yet - we still have no cure for the common cold.

Why can’t we stop the common cold? According to Peter Barlow, a scientist at Edinburgh Napier University in the UK, the main challenge lies in the many different types of cold viruses that are produced by the rhinoviruses (鼻病毒). There are at least 160 types. They mutate (突变) so easily that they quickly become resistant to drugs, or learn to hide from our immune systems. In other words, a single cure isn’t likely to work on every type of cold.

However, researchers from Stanford University and the University of California, San Francisco, have found a possible answer. They discovered a protein that the viruses need. Without it, they can’t spread inside your body.

To identify the gene which produces the specific protein needed by the viruses, researchers used a gene-editing technique to test all genes in the human genome one by one for thousands of cells. These modified (改变的) cells were then exposed to a range of enteroviruses, including the rhinoviruses which cause the common cold. All the viruses were unable to replicate (复制) inside cells without a gene that produces a specific protein, called methyltransferase SETD3.

Then, they tested genetically modified mice, which were completely unable to produce the protein. The mice were able to live healthy, normal lives without the protein. “Lacking that gene protected the mice completely from viral infection.” associate professor Jan Carette, from Stanford, told the BBC. “These mice would always die, but they survived and we saw a very strong reduction in viral replication and very strong protection.”

Carette said the plan is to find a drug which can temporarily suppress (抑制) the protein, instead of producing genetically modified humans. “We have identified a fantastic target that all enteroviruses and rhinoviruses require and depend on. Take that away and the virus really has no chance.” said Carette. “This is a really good first step – the second step is to have a chemical that mimics (模拟) this genetic deletion.” he added.

1.What does Peter Barlow think is the main problem for prevention of the common cold?

A.The slow mutation of some genes.

B.The fast speed at which rhinoviruses spread.

C.The harm rhinoviruses do to the immune system.

D.The wide variety of cold viruses created by rhinoviruses.

2.What can we learn about the protein needed by the viruses?

A.It helps the viruses replicate inside our bodies.

B.It allows the viruses to mutate easily.

C.It helps the viruses become resistant to drugs.

D.It accelerates the speed at which the viruses spread.

3.What did the researchers discover in their gene-editing study?

A.Genetically modified mice died because they lacked the protein.

B.The modified cells seemed to protect the mice against viral infections.

C.More methyltransferase SETD3 was produced after the cells were modified.

D.The gene-editing technique was more effective against enteroviruses than rhinoviruses.

4.What do the researchers most probably do next, according to Carette?

A.Conduct experiments on genetically modified humans.

B.Identify a drug that can help reduce the protein.

C.Apply this gene-editing technique to control other viruses.

D.Find a chemical that can cure all enteroviruses and rhinoviruses.

高三英语阅读理解中等难度题查看答案及解析

Nowadays, we depend on advanced technology too much. However, a the saying goes, a coin has two sides. The tool bringing you convenience may also put you in trouble. Here is a modern-day horror story:

A young mother was employed in doing her writing when her son, aged 2, burst into tears somehow. She did all she could to ease her son. But in vain. She had no way to comfort him. Meanwhile, her iPhone rang aloud, which attracted his son's attention. He stopped crying temporarily. It occurred to her that the iPhone might help. Thus, she handed her iPhone to her son: What happened next? The child entered an incorrect passcode on his mother's phone so many times that the device became locked for 251 14984 minutes, about 47 years, making it absolutely useless to its formerly digitally connected owner. That's the scene now facing a Shanghai mother, identified only as Ms Lu by Chinese news reports, whose kid played with her phone and unfortunately began the process of disabling the device for, basically, forever. According to a news report, Ms Lu waited two months to see if the situation would improve, but the iPhone remained locked. “I couldn't really wait 47 years and tell my grandchild it was his father's mistake, ”she reportedly said. The alternative mode of accessing the phone is to wipe it with a factory reset. This is why you should always backup ( 备份) all your data.

iPhone can become locked with six failed attempts at entering a passcode on the locked screen, and the amount of time for which the phone is locked can compound (增加) with ongoing attempts to break in. So, for all the parents out there: see to it that you don't let your kid loose on your phone, assuming you want to still use it when he's done, of course.

1.Why did the young mother hand her phone to her son?

A.To focus on her housework. B.To comfort her crying kid.

C.To let him answer the phone. D.To play the phone with him.

2.What happened to Ms Lu?

A.The system of her iPhone broke down.

B.She couldn't use her iPhone back then.

C.Her iPhone was locked for two months.

D.She forgot the passcode of her iPhone.

3.To solve her problem, Ms Lu should____

A.backup all the data immediately

B.wipe the iPhone with a factory reset

C.enter the correct passcode for six, times

D.set a new passcode to unlock the iPhone

4.What does the underlined part in the last paragraph mean?

A.Don't hand your own phone to your young kid.

B.Let your kid feel loose when using your phone.

C.Make sure to set a passcode to lock your phone.

D.Be careful when your kid plays with your phone.

高三英语阅读理解困难题查看答案及解析

Thanks to the advanced technology，we live in an age of bettered communication．This has many __________ well beyond the role that parents seem to play in the lives of their children who have left for college．

A．directions　　　　　　　　　　 B．conclusions

C．implications　　　　　　　　　 D．assessments

高三英语单项填空中等难度题查看答案及解析

---Even if we have had advanced technology, we can’t bring dinosaurs back to life.

---______. They died out long ago and their DNA was already destroyed.

A.That’s it B.That’s all right C.It depends D.It’s up to you

高三英语单项填空中等难度题查看答案及解析

Today we have too many choices of communication through advanced technology，but we seem ___________the joy of communicating face to face．

A．losing　　             B．to be losing　　     C．to be lost             D．hating lost

高三英语单项填空中等难度题查看答案及解析