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[主观题]

The HIV virus has caused more deaths in developed countries.A．RightB．WrongC．Not mentioned

The HIV virus has caused more deaths in developed countries.

A．Right

B．Wrong

C．Not mentioned

提问人：网友boyheng 发布时间：2022-01-06

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更多“The HIV virus has caused more …”相关的问题

第1题

Using HIV Virus to Cure Cancer Scientists are planning to use human immunodeficiency （免疫

Using HIV Virus to Cure Cancer

Scientists are planning to use human immunodeficiency (免疫缺陷) virus (HIV), one of mankind's most feared viruses, as a carrier of genes which can fight cancer and a range of diseases that cannot be cured. The experts say HIV has an almost perfect ability to avoid the body's immune (免疫的) defenses, making it ideal for carrying replacement genes into patients' bodies, according to the Observer.

A team at the California-based Salk Institute, one of the world's leading research centers on biological sciences, has created a special new breed of HIV and has started negotiations with the U.S. Food and Drug Administration (FDA) to begin clinical gene therapy (治疗) trials this year. The first trials are expected to involve patients suffering from cancers that cannot be cured by surgery although project leader Professor Inder Verma said the HIV technique would have "far wider applications".

The plan remains very likely to cause controversy since it involves making use of a virus which has caused more than 22 million deaths around the world in the past two decades. Verma said that the idea of using HIV for a beneficial purpose was "shocking" but the fierce nature of HIV had disappeared by having all six of the potentially deadly genes removed.

Illnesses such as various cancers are caused when a gene in a patient's body fails to work properly. In the past two years, breakthroughs in genetics (遗传学) have led gene therapy scientists to try and replace the genes that do not function normally.

Unfortunately, the body's immune defenses have been known to attack the modified genes and make them lose their effects before they can start their task and progress in the field has been held up by the lack of a suitable carrier.

The HIV virus has the ability to escape from, and then destroy, the immune defense cells designed to protect our bodies and this makes it attractive to scientists as a way of secretly conveying replacement genes into patients' bodies.

FDA has approved the plan of using HIV to cure cancer in humans.

A．Right

B．Wrong

C．Not mentioned

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第2题

●The（72） in e-mail messages has affected almost every computer around the world and has ca

● The （72） in e-mail messages has affected almost every computer around the world and has caused the damage of up to US$1 billion in North America.

（72）

A. illness

B. virus

C. weakness

D. attachment

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第3题

听力原文：（With) Other viruses, such as smallpox and measles, and polioneuromere, the major

听力原文：(With) Other viruses, such as smallpox and measles, and polioneuromere, the majority of people mount an immune response even if they never been vaccinated that clears the natural infection. With H1V, there are virtually no incidents of a person who has completely cleared the virus from their body, which means that although some people can control the virus better than others, the body is having trouble making a protective immune response.

What is the point the speaker is trying to make about HIV virus？

A．HIV vaccines trigger an immune response, but that response has proven inadequate.

B．The body's natural immune response to HIV infection could eradicate the virus.

C．The majority of people could mount an immune response even without being vaccinated that clears the natural infection from every virus.

D．Some people can control HIV virus better than others and make a protective immune response.

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第4题

Using HIV Virus to Cure Cancer Scientists are planning to use human immunodeficiency

Using HIV Virus to Cure Cancer

Scientists are planning to use human immunodeficiency (免疫缺陷) virus (HIV), one of mankind's most feared viruses, as a carrier of genes which can fight cancer and a range of diseases that cannot be cured, The experts say HIV has an almost perfect ability to avoid the body's immune (免疫的) defenses, making it ideal for carrying replacement genes into patients' bodies, according to the Observer,

A team at the California-based Salk Institute, one of the world's loading research centers on biological sciences, has created a special new breed of HIV and has started negotiations with the U.S. Food and Drug Administration (FDA) to begin clinical gene therapy (治疗) trials this year. The first trials are expected to involve patients suffering from cancers that cannot be cured by surgery although project leader Professor Inder Verma said the HIV technique would have "far wider applications".

I'll nesses such as various cancers are caused when a gene in a patient's body fails to work properly. In the past two years, breakthroughs in genetics (遗传学) have led gene therapy scientists to try and replace the genes that do not function normally.

第 16 题 FDA has approved the plan of using HIV to cure cancer in humans.

A．Right

B． Wrong

C． Not mentioned

点击查看答案

第5题

根据下列文章,请回答 16～22 题。 Using HIV Virus to Cure Cancer Scientists are planning

根据下列文章,请回答 16～22 题。

Using HIV Virus to Cure Cancer

Scientists are planning to use human immunodeficiency(免疫缺陷)virus(HIV)。One of mankind’s most feared viruses，as a carrier of genes which can fight cancer and a range of diseases that cannot be cured．The expels say HIV has an almost perfect ability to avoid the body’s immune(免疫的)defenses，making it ideal for carrying replacement genes into patients’ bodies。according to the Observe．

A team at the California-based Salk Institute，one of the world’s leading research centers on biological sciences。has created a special new breed of HIV and has started negotiations with the U．S．Food and Drug Administration (FDA)to begin clinical gene therapy(治疗)trials this year．The first trials are expected to involve patients suffering from cancers that cannot be cured by surgery although project leader Professor inder Verma said the HIV technique would have” far wider applications”．

The plan remains very likely to cause controversy since it involves making use of a virus which has caused more than 22 million deaths around the world in the past two decades．Verma said that the idea of using H IV for a beneficial purpose was“shockin9’’but the fierce nature of HIV had disappeared by having all six of the potentially deadly genes removed．

Illnesses such as various cancers are caused when a gene in a patient’s body fails to work properly．In the past two years。breakthroughs in genetics(遗传学)have led gene therapy scientists to try and replace the genes that do not function normally．

Unfortunately, the body’s immune defenses have been known to attack the modified genes and make them lose their effects before they can start their task and progress in the field has been held up by the lack of a suitable carrier．

The HIV virus has the ability to escape from．and then destroy, the immune defense cells designed to protect our bodies and this makes it attractive to scientists as a way of secretly conveying replacement genes into patients’ bodies.

第 16 题 FDA has approved the plan of using HIV to cure cancer in humans．

A．Right

B．Wrong

C．Not mentioned

点击查看答案

第6题

听力原文：Scientists say they have proven what they have long suspected about HIV, the viru

听力原文： Scientists say they have proven what they have long suspected about HIV, the virus that causes the disease AIDS. They found that an infected person who has a low amount of HIV in the blood is less likely to pass the virus to someone of the opposite sex.

The study is the largest ever to examine the link between viral level in a person’s blood and the risk of passing HIV through sex. The findings suggest that reducing the amount of the virus in a person’s blood may be one way to slow the rate of AIDS infections. The researchers found that having other sexually transmitted diseases did not affect the risk for HIV. The amount of virus in the blood did affect the risk for HIV.

Experts say the Ugandan study may lead to new treatments to prevent the spread of HIV. But the study has caused criticism about the way AIDS research is carried out. Doctor Marcia Angell, the editor of the blew England Journal of Medicine that published the study, says the HIV-infected people in the study should have been offered anti-viral drugs that are given in industrial countries. She and other people fear that AIDS research is carried out unfairly in poor countries.

Which of the following statements is TRUE according to the passage？

A．Scientists have developed a new drag to kill HIV virus.

B．Scientists have found a new treatment to prevent the spread of HIV.

C．Scientists have proven that HIV does cause the disease AIDS.

D．Scientists have found that the amount of virus in the blood affect the risk for HIV.

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第7题

Which of the following is true according to the text？A．In his paper, Dr. Arien proves that

Which of the following is true according to the text？

A．In his paper, Dr. Arien proves that HIV is weakening in Europe and Africa.

B．Two kinds of blood samples are placed in two different cell cultures to be observed.

C．Dr. Arien has made the cause of attenuation of virus clear.

D．There are 3/4 of the viruses in Dr. Arien's study proving to be less harmful.

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第8题

Among the devastating consequences of AIDS has【21】______ its epidemic spread in the develo

Among the devastating consequences of AIDS has 【21】______ its epidemic spread in the developing world. The disease has caused 【22】______ suffering, debilitation, loss of life and disruption of family, social and economic 【23】______ Because of the considerable expense and logistical difficulty in providing antiviral drugs to populations 【24】______ with the Human Immunodeficiency Virus 【25】______ the world, the biomedical community is looking towards vaccines to help solve this compelling problem.

The search for an AIDS vaccine began more than 15 years ago with great 【26】______ and high expectations. With the 【27】______ of the Human Immunodeficiency Virus (HIV) as the cause of AIDS, it seemed that a 【28】______ would follow closely behind. But despite a large concerted effort, the problem has proven more difficult than 【29】______ , and progress has not 【30】______ the 【31】______ hopes. Here I review the 【32】______ scientific obstacles confronting the development of an effective HIV vaccine, and I consider 【33】______ strategies to overcome these obstacles.

It is instructive to consider the circumstances that have 【34】______ to past successes in vaccine development. The smallpox vaccine is 【35】______ the most successful inventions in the history of 【36】______ Why, 200 years ago, without the benefit of modern biotechnology, did the smallpox vaccine succeed so readily while an AIDS vaccine 【37】______ elusive？ The answer lies in an experiment of nature that provided, to an astute observer, a clear direction for smallpox vaccine development. In this classic story of 【38】______ discovery, Edward Jennet noticed that milk maids who had previously contracted cowpox were 【39】______ to smallpox infection. This observation was the critical event leading to the finding that the cowpox virus cross-reacted immunologically with the smallpox virus and could 【40】______ be used to protect against smallpox.

【21】

A．on

B．with

C．been

D．about

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第9题

Section BDirections: There are 2 passages in this section. Each passage is followed by som

Section B

Directions: There are 2 passages in this section. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A, B, C and D. You should decide on the best choice.

Women may be infected by the HIV virus in a different way than men, according to a recent study release, suggesting it could be even harder to develop a vaccine that would work well on women.

The findings, published in the journal nature, showed most women in the study initially were infected by multiple variants of the HIV virus while all of men initially wee infected by a single variant of the HIV virus.

Previous studies in the United States and Europe on how the HIV virus was transmitted focused mainly on men and led many to believe that only one variant of the virus was transmitted at the time of infection. The new study appeared to confirm that to be the case in men, but not in women.

Once infected by single or multiple variants of HIV, the virus replicates itself into even more genetic variants, making it difficult to develop a vaccine.

The ongoing study, led by the Fred Hutchinson Cancer Research Center of Seattle, is one of many aimed at better understanding the HIV virus in the belief that the best way to find a vaccine is to understand how the virus works.

The study tracked the sexual activity of hetero-sexual men and women in Kenya over more than four years, monitoring them for the presence of the HIV virus at intervals of about three months.

Of the 32 women infected, 20 were found to have been infected with multiple variants of the HIV virus. Further tests revealed each of the women was infected by a single partner, indicating they had contracted a variety of strains of HIV from one man, not several. Of the 10 men in the study who were infected, all were infected with a single variant of the HIV virus.

Like many medical studies, this one raises more questions than it answers. One question must be addressed is whether HIV infects women in a different way than men.

Students comparing how the virus behaves in men and women are becoming increasingly important as the number of women infected has risen.

According to the passage, most women ______.

A．were infected by a single variant of the HIV virus

B．were infected by multiple variants of the HIV virus

C．were stronger than men

D．had anti-body in their body

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第10题

On the 20th【D1】______ of the first official report on AIDS the head of the United Nations

AIDS programme warns the deadly disease may only be at its early stages in many parts of the world. Dr. Piot has said that the disease has already reached the【D2】______【D3】______ since first being【D4】______ in 1981. 58 million people world-wide have【D5】______ the HIV virus,which causes AIDS, while 22 million have 【D6】______related【D7】______. The UN estimates the worlds HIV-【D8】______ population at 36 million, including 25 million in Sub-Saharan Africa. International officials warned that the disease would have【D9】______ political, social and economic【D10】______ in many developing countries.

【D1】

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