Firms that use computers have found that the ...

Firms that use computers have found that the number of staff _____ is needed for quality control can be greatly reduced.

A．whose            B．as               C．what             D．that

高三英语单项填空简单题查看答案及解析

The new survey shows that the number of students ______ computer games has been increasing in recent years.

A．devoted to　　　　　 B．related to

C．connected to 　　 D．addicted to

高三英语单项填空中等难度题查看答案及解析

The new survey shows that the number of students ______ computer games has been increasing in recent years.

A. devoted to　　　　 　 B. related to

C. connected to　　 　 　　 D. addicted to

高三英语单项填空中等难度题查看答案及解析

The new survey shows that the number of students ________ computer games has been increasing in recent years.

A. accustomed to　　 B. absorbed to　　 C. adapted to　　 D. addicted to

高三英语单项填空中等难度题查看答案及解析

At the well-known research institute at Princeton, they have a number of laboratories with computers _________ each room．

A．equipping with     B．equipped           C．equipped with     D．equipping

高三英语单项填空中等难度题查看答案及解析

(2013·安徽省芜湖三校一模)A recent study has found that the number of smokers ________ sharply over the past five years.

A．is increasing

B．are increasing

C．has been increasing

D．have been increasing

高三英语单项填空中等难度题查看答案及解析

Chinese scientists have found a new way to use cells found in human urine （尿液）that could aid in the treatment of a range of nerve disorders.That is a new technique for reprogramming cells in human urine into nerve progenitor cells  that can grow into multi-functional nerve and brain cells.

The technique is expected to be used in the study and treatment of nerve disorders such as Parkinson's disease, Alzheimer's disease and other nerve disorders.

Pei Duanqing, a professor at Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, said his research team has combined an episomal system to deliver reprogramming factors with a chemically defined culture medium to reprogram kidney epithelial(肾表皮) cells in urine into NPCs.

These NPCs, normally only found in the human brain, were later proven to be transgene-free and self-renewing, he said.

"These nerve and brain cells can survive for up to one month when transplanted into the brain of a newborn rat," said Pei. "My team is working hard to understand why our experimental condition allowed the urine cells to become NPCs, because we want to improve the technique and make it more efficient".

Scientists have long searched to treat and study neural disorders by obtaining and transplanting neural stem cells. However, the previous method of getting and using cells from either fetal (胎儿)or adult human tissue remains challenging due to ethical concerns and immune system rejections, he said.

Pei hopes the discovery will be used to generate NPCs from patients with nerve disorders such as Parkinson's disease. "These NPCs from patients may help us discover new drugs for these diseases."

"It is a remarkable advance in the stem cell field. The results and methods obtained from this study will be of great value and significance to the field, " said Fred Gage,a professor with the Salk Institute for Biological Studies.

1.What is the passage mainly about?

A. NPCs are beneficial in treating human diseases.

B. Chinese scientists succeeded in making NPCs from human urine.

C. Chinese scientists have found cures for all diseases.

D. A new technique was used to study the use of human urine

2.Pei and his tean try their best to work hard in order to________.

A. make more contributions to medical study

B. discover another new technique

C. make the technique more perfect

D. treat more patients suffering from bad diseases

3.What is the challenge of making NPCs in the previous method?

A. The ethical comcerns and immune system refusal

B. The difificulties in getting cells from human.

C. The under-developed techniques in medical science.

D. The lack of financial support from the government.

4.From the last paragraph we can infer________.

A. the new technique will be developed in science

B. the results and methods will be applied to treating cancers

C. the study will give a major push to the stem cell field

D. the mew technique will bring great profis

高三英语阅读理解中等难度题查看答案及解析

Computer power is moving into the “cloud”—networks of data centres that use the Internet to supply all kinds of services, from e-mail and social networks to data storage and analysis.

The rise of cloud computing is rapid and causing huge changes in the tech industry. The old guard is suffering: this week’s $67 billion merger (合并) between Dell and EMC, makers of computers and storage devices respectively (分别), was a marriage forced by the rise of the cloud. Disruptive (捣乱的) newcomers are blooming: if Amazon’s cloud-computing unit were a stand-alone public company, it would probably be worth almost as much as Dell and EMC combined.

The gains for customers have been equally dramatic. Compared with older IT systems, cloud computing is often much cheaper. It adds tremendous flexibility: firms that need more computing capacity no longer have to spend weeks adding new servers and installing software. In the cloud they can get hold of it in minutes. Their applications can be updated continually, rather than just every few months. Individual users can reach their e-mails, files and photos from any device. And cloud services also tend to be more secure, since providers know better than their customers how to protect their computing systems against hackers.

But cloud computing makes one problem worse. In the old IT world, once a firm or a consumer had decided on an operating system or database, it was difficult and costly to switch to another. In the cloud this “lock-in” is even worse. Cloud providers go to great lengths to make it easy to upload data. They accumulate huge amounts of complex information, which cannot easily be moved to an alternative provider.

Cloud firms also create a world of interconnected services, software and devices, which is convenient but only for as long as you don’t venture (冒险) outside their universe. Being locked in to a provider is risky. Firms can start to tighten the screws by increasing prices. If a cloud provider goes bust (崩溃), its customers may have trouble getting back their data.

These risks have already caused a debate about whether the cloud needs stricter regulation. Some European politicians want to force cloud providers to ensure that data can be moved between them. That is too heavy-handed, because strict rules will inhibit (阻碍) innovation in what is still a young industry. The history of computing suggests that common standards may well appear naturally in response to customers’ demands—just as in personal computers, where it is now much easier to use the same files on different systems.

In the meantime, a few commonsense measures can reduce the risk of lock-in. Firms that use more than one cloud provider to host their data are less affected. So are those that keep their most important information in their own data centres. Consumers can take precautions, too. Some services are better than others at enabling users to move data between providers (Google does well on this score). Cloud computing promises its users many benefits, but don’t mistake it for some sort of digital heaven.

1.The author takes “the merger between Dell and EMC” for example to show ________.

A. the influence of cloud computing on computer and storage device makers

B. the miserable sufferings of old computer companies

C. the rapid development of new computer companies

D. the interaction between old companies and newcomers

2.With wide applications of cloud computing customers can ________.

A. pay less for the older IT systems

B. gain more computing capacity quickly

C. know better about defeating the hackers

D. install software within weeks

3.The problem of “lock-in” can be dangerous because ________.

A. it should ensure data can easily be moved to another provider

B. it can create a network of services connected with devices

C. it may make it difficult for customers to recover their data

D. it will discourage an argument about stricter rules

4.It can be inferred from the last two paragraphs that ________.

A. the European politicians’ advice is perfect

B. customers’ demands play a role in setting standards

C. lock-in is caused by firms’ storing information in their own centres

D. Google enables users to provide services and move data

5.Which of the following sayings can best express the main idea of the passage?

A. Everything has its time and that time must be watched.

B. The grass looks greener on the other side of the fence.

C. A candle lights others and consumes itself.

D. Every white has its black, and every sweet has its sour.

高三英语阅读理解简单题查看答案及解析

A study of a university in Shanghai had found that many of the students there are using a quote（引语）from the Italian poet Dante as a kind of motto. The study of Fudan University, one of China’s top universities, of 489 students, found that 82 had chosen Dante’s “Follow your own path and don’t worry about what others say” as their motto, out of 278 people who said they had a motto. This was followed by “Believe yourself” and “Self-improvement without stop.”

Students also expressed a common hope for greater understanding and care and said they were always ready to give a hand to those in need.

Some researchers think that mottoes can play an important part in children’s growth and they say that a good motto can help children develop a better character.

1.The study shows _________.

A．which university should have mottoes

B．what poems are popular

C．how many students like the motto “Believe yourself.”

D．the majority of the students like to choose their favorite mottoes

2.Of the students asked, _______ students have mottoes.

A．about 78% B．about 57%         C．about 16% D．about 8%

3.The motto “Self-improvement without stop” shares the similar meaning with ______.

A．going on to improve rapidly

B．growing by oneself continuously

C．making oneself better and perfect continuously

D．becoming better without having a break

4.The best title for the passage should be _______.

A．Mottoes and Character Developing         B．Students and Poet

C．Mottoes and Learning                   D．Understanding Care

高三英语阅读理解中等难度题查看答案及解析

A study of a university in Shanghai had found that many of the students there are using a quote（引语）from the Italian poet Dante as a kind of motto. The study of Fudan University, one of China’s top universities, of 489 students, found that 82 had chosen Dante’s “Follow your own path and don’t worry about what others say” as their motto, out of 278 people who said they had a motto. This was followed by “Believe yourself” and “Self-improvement without stop.”

Students also expressed a common hope for greater understanding and care and said they were always ready to give a hand to those in need. Some researchers think that mottoes can play an important part in children’s growth and they say that a good motto can help children develop a better character.

1.The study shows ________.

A. which university should have mottoes

B. who should have “Follow your own path and don’t worry about what others say” as their motto

C. how many students like the motto “Believe yourself.”

D. many students choose a quote from Dante as their favorite motto

2.Of the students asked, ________ students have mottoes.

A. about 78%               B. about 57%               C. about 16%                D. about 8%

3.The motto “Self-improvement without stop” shares the similar meaning with ________.

A. going on to improve rapidly

B. growing by oneself continuously

C. making oneself better and perfect continuously

D. becoming better without having a break

4.The best title for the passage should be _______.

A. Mottoes and Character Developing         B. Students and Poet

C. Mottoes and Learning                          D. Understanding Care

高三英语阅读理解简单题查看答案及解析