It is only when the disease has progressed to...

It is only when the disease has progressed to the AIDS ____ a person begins to look sick.

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

高二英语单项填空中等难度题查看答案及解析

It is not until the disease has progressed to AIDS ____a person begins to look sick.

A．who             B．that              C．where            D．before

高二英语单项填空中等难度题查看答案及解析

Attitudes to AIDS Now

Most people say that the USA is making progress in fighting AIDS, but they don't know there's no cure and strongly disagree that "the AIDS epidemic(传染病) is over," a new survey finds.

The findings, released Thursday by the Kaiser Family Foundation, reassure activists who have worried that public concern about AIDS might disappear in light of recent news about advances in treatment and declines in deaths.

"While people are very optimistic about the advances, they're still realistic about the fact that there is no cure" says Sophia Chang, director of HIV programs at the foundation.

The Kaiser survey, like a recent USA TODAY Gallup Poll, does find that the number of people ranking AIDS as the country's top health problem has fallen. In the Kaiser Poll, 38% say it's the top concern, down from 44% in a 1996 poll; in the Gallup Poll, 29% say AIDS is No.1, down from 41% in 1992 and 67% in 1987.

Other findings from Kaiser, which polled more than 1,200 adults in September and October and asked additional questions of another 1,000 adults in November:

52% say the country is making progress against AIDS, up from 32% in 1995.51% say the government spends too little on AIDS. 86% correctly say AIDS drugs can now lengthen lives; an equal number correctly say that the drugs are not cures.67% incorrectly say that AIDS deaths increased or stayed the same in the past year; 24% know deaths fell. Daniel Zingale, director of AIDS Action Council, says, "I'm encouraged that the American people are getting th e message that the AIDS epidemic isn't over. I hope the decision-makers in Washington are getting the same message … We have seen signs of complacency.

1.What do activists worry about?

A. Recent news about AIDS is not true.

B. Advances in AIDS treatment are too slow.

C. Deaths caused by AIDS may not decline.

D. People may stop worrying about AIDS

2.According to the passage, people's attitude toward the cure of AIDS is

A. optimistic.　　 B. hopeless

C. pessimistic.　　 D. realistic

3.The Gallup Poll shows that the number of people___________.

A. who suffer from the worst disease -- AIDS has fallen.

B. who think AIDS is the country's top health killer has fallen.

C. who worry about AIDS and health problems has fallen.

D. who think AIDS threatens the countryside has fallen.

4.According to the Kaiser Poll, which of the following is NOT Correct?

A. The country is making progress against AIDS.

B. More and more people die of AIDS now.

C. AIDS drugs can now make people live longer.

D. AIDS drugs still cannot save people's lives.

高二英语阅读理解中等难度题查看答案及解析

It is the prevention of disease ______its successful treatment that has led to the rapid increase of the world’s population.

A.rather than　 B.other than

C.more than　　　　 D.better than

高二英语单项填空中等难度题查看答案及解析

It is the prevention of disease ______its successful treatment that has led to the rapid increase of the world’s population.

A.rather than　　 B.other than　　　　

C.more than　　　 D.better than

高二英语单项填空中等难度题查看答案及解析

AIDS may be one of the most undesirable diseases in the world. Luckily, there is now hope for AIDS patients.

According to a recent paper published in the New England Journal of Medicine, Chinese scientists have successfully used CRISPR technology - a method of gene editing - to treat a patient with HIV. While it may not have cured the patient fully, it still represents a huge step forward in fighting the disease.

The patient was a 27-year-old Chinese man who was diagnosed with both AIDS and acute lymphoblastic leukemia (急性淋巴细胞白血病), a type of blood cancer. Despite his hopeless situation, doctors offered him a glimmer of hope: a bone marrow (骨髓) transplant to treat his cancer and an experimental treatment for his HIV.

They used this opportunity to edit the DNA in bone marrow stem cells from a donor before transplanting the cells into the patient.

Specifically, the treatment involved using the gene-editing tool CRISPR-Cas9 to delete a gene known as CCR5, which encodes a protein that HIV uses to get inside human cells. Without the gene, HIV is unable to infiltrate cells.

Talking about the gene, lead scientist Deng Hongkui told CNN, “After being edited, the cells - and the blood cells they produce - have the ability to resist HIV infection.”

Nineteen months after the treatment, the patient’s leukemia was in complete remission (缓解) and donor cells without CCR5 remained, according to the research paper.

Though the transplant did not cure the man’s HIV, it still showed the effectiveness of gene-editing technology, as there was no indication of any unintended genetic alterations - a major concern with past gene therapy experiments.

Amesh Adalja, a senior scholar at the Johns Hopkins Centre for Health Security in the United States, who was not involved in the study, praised the treatment.

“They did a very innovative experiment. It was safe,” he told Live Science. “It should be viewed as a success.”

Deng believes gene-editing technology could “bring a new dawn” to blood-related diseases such as AIDS and sickle cell anemia (镰刀形细胞性贫血).

“Thanks to this new technology, the goal of a functional cure for AIDS is getting closer and closer,” he said.

1.The technology of CRISPR is to ___________.

A.transplant cells B.encode genes

C.remove proteins D.produce cells

2.What was the result of the treatment?

A.CCR5 and other genes in the patient’s cells were changed.

B.The number of cells infected by HIV decreased.

C.Some of the patient’s blood cells could resist HIV infection.

D.HIV no longer existed in the patient’s cells.

3.What do we know about the experiment?

A.It provided an innovative way to cure AIDS patients.

B.It pointed out the problems of gene therapy.

C.It could offer a safe treatment for blood-related diseases.

D.It’s the first experiment to use gene-editing technology to treat AIDS.

高二英语阅读理解中等难度题查看答案及解析

An entire industry has been built upon the assumption that image is everything, but when it comes to it, an appealing image is not enough．If there is no substance（事实）behind the image, the product, service or person will fail eventually．

First of all, one should consider how important image is in the selling of products and services．Advertising agencies have raised the art of creating an image to a state of near perfection．Public concept of that product or service is certainly managed by the images created by the advertising agencies．But if the product or service does not live up to the image that was created, the customer will be very dissatisfied and possibly ask for their money back．For example, the Arthur Andersen accounting firm had spent decades building up an image of trustworthiness．But the recent scandal（丑闻）showed that behind that image, it cheated in business practices．Despite the previous positive image, the firm is being accused of criminal actions and it will probably not survive as a business unit．Although the image had been nearly perfect, the reality, behind the image has led to the downfall of the word-famous accounting firm．

Similarly, personal advisers can build up a public image for politicians and movie stars．Putting out positive news releases, making sure that only the best photographs are published, and ensuring that the person is seen in all the right places can build up a very positive image in the view of the general commons．But once again, history is filled with examples of both politicians and movie stars that fell from grace like the story of the Hollywood actor giving in to the pressures of fame and fortune．With people, just as with products and services, image is certainly important, but without positive substance behind the image, failure is close．

To summarize, it is clear that an appealing image is extremely important to success, whether that image is related to selling a product or service or to the “selling” of a person．But image is only half of the equation（等式）．What lies behind that image is every bit as important as the image itself—the person or product must deliver truth on that image or there is little chance for long-term success．

1.The down fall of the Arthur Andersen accounting firm is due to ________．

A．its previous images．　　　　　　 B．its dishonesty in business．

C．its bad management．　　　　　　 D．its poor service．

2.Why did some famous people fall from grace?

A．They failed to live up to their images．

B．Their images were not well built up．

C．They felt much pressure from the public．

D．They paid little attention to fame and fortune．

3.The structure of the passage is _________．

A：Argument　　 P：Point　　　　 C．Conclusion

4.The author tries to argue that ________．

A．image creates everything．

B．image is the key to success．

C．truth is unlikely ever to be equaled．

D．truth and image are equally important．

高二英语阅读理解中等难度题查看答案及解析

So far, the disease has not been _____ terrible as it seems to be.

A. so             B. too               C. very             D. rather

高二英语单项填空简单题查看答案及解析

It is only when a football player has aged and been through many battles ________ he learns an important lesson: there is no “I” in “team”.

A. after　　　 B. before　　　 C. what　　　 D. that

高二英语单项填空中等难度题查看答案及解析

AIDs is a disease that _______ the body”s  immune system.

A breaks out   B. breaks into   C. breaks down   D. breaks up

高二英语单项填空中等难度题查看答案及解析