Human rights protect people against ______ mi...

Human rights protect people against ______ might wish to enslave, silence or restrict them.

A.whatever B.whichever C.whomever D.whoever

高三英语单项填空中等难度题查看答案及解析

Our government is trying its best to ____the social security system to protect people's rights．

A．balance          B．reform            C．conduct         D．press

高三英语单项填空中等难度题查看答案及解析

Human rights _____ all people, in all places, at all times, including the world’s children.

A.apply for B.apply to C.adapt to D.adopt to

高三英语单项填空中等难度题查看答案及解析

阅读理解。

Students wishing to safeguard their careers against changes in the job market should opt for science rather than arts degrees, according to a survey of undergraduates.

Engineering and chemistry were considered to be the most “future proof”， as they are courses most likely to lead to an enduring and adaptable career.

Students polled by Pearson College were broadly optimistic that their chosen courses would prepare them for a world in which the job market could change dramatically during their working lives.

But opinion was sharply divided over which degrees were best for future­proof careers.

Eighty­two percent of respondents believed engineering would help develop future­proof skills, with 74 percent believing the same of chemistry and 73 percent of computer science.

But just 33 percent of undergraduates believed history would lead to a future­proof career, and 40 percent English.

However more than two thirds of students (67 percent) thought the world of work would be significantly different or completely unrecognizable in 20 years.

The findings, published today, come after Education Secretary Nicky Morgan sparked controversy with claims that teenagers should steer clear of the arts and humanities and opt for science or maths subjects if they want to access the widest range of jobs.

She said that in previous decades students would only take maths or science if they wanted to pursue a specific career such as medicine or pharmacy, but nowadays that “couldn't_be_further_from_the_truth”.

“If you wanted to do something different, or even if you didn't know what you wanted to do ... then the arts and humanities were what you chose. Because they were useful — we were told — for all kinds of jobs. Of course now we know that couldn't be further from the truth, and that the subjects that keep young people's options open and unlock doors to all sorts of careers are the STEM (science, technology, engineering and maths) subjects.”

She also described maths as “the subject that employers value most” and said that pupils who study A­level maths will earn 10 percent more over their lifetime.

“These figures show us that too many young people are making choices aged 15 which will hold them back for the rest of their lives.”she said.

1.In order to guarantee your future job, which kind of courses will you choose according to the survey?

A．Engineering or English.

B．History or Maths.

C．Maths or Art.

D．Engineering or Chemistry.

2.What's the students' attitude towards their chosen courses?

A．Doubtful.　　　　　 B．Worried.

C．Optimistic.　　　　 D．Objective.

3.How do you understand the underlined words?

A．It is far away from the truth.

B．It's to the truth.

C．It couldn't be closer to the truth.

D．It reflects the truth.

4.What did Nicky Morgan indicate in her claim?

A．If you want to do something different, the arts and humanities are what you choose now.

B．STEM subjects can make young people choose their future jobs freely.

C．At college, young people should make choices for their lives.

D．Maths and science are considered to be the subjects that employers value most.

高三英语阅读理解中等难度题查看答案及解析

The policeman always _____ his post and struggled against the difficulties to protect the safety of the people and their property.

A. belonged to　　　　　　 B. turned to

C. stuck to 　　　　　　　　 D. appealed to

高三英语单项填空中等难度题查看答案及解析

It has been proved______eating vegetables in childhood helps to protect you against serious illnesses in later life.

A. if               B. because          C. when                 D. that

高三英语单项填空困难题查看答案及解析

China's present environment situation is from bad to worse and if we _________ now to protect the environment, we’ll live to regret it.

A. hadn’t acted      B. haven’t acted      C. don’t act     D. won’t act

高三英语单项填空中等难度题查看答案及解析

If you could change your child's DNA in the future to protect them against diseases, would you? It could be possible because of technology known as CRISPR- Cas, or just CRISPR.

CRISPR involves a piece of RNA, a chemical messenger, designed to work on one part of DNA； it also uses an enzyme (If) that can take unwanted genes out and put new ones in, according to The Economist. There are other ways of editing DNA, but CRISPR will do it very simply, quickly, and exactly.

The uses of CRISPR could mean that cures are developed for everything from Alzheimer's to cancer to HIV. By allowing doctors to put just the right cancer-killing genes into a patient's immune system, the technology could help greatly.

In April scientists in China said they had tried using CRISPR to edit the genomes (基因组)of human embryos. Though the embryos would never turn into humans, this was the first time anyone had ever tried to edit DNA from human beings. With this in mind, the US' National Academy of Sciences plans to discuss questions about CRISPR s ethics(伦理问题).For example? CRISPR doesn't work properly yet. As well as cutting the DNA it is looking for, it often cuts other DNA, too. In addition, we currently seem to have too little understanding of what DNA gives people what qualities.

There are also moral questions around playing God”. Of course, medicine already stops natural things from happening-for example, it saves people from infections. The opportunities to treat diseases make it hard to say we shouldn't keep going.

A harder question is whether it is ever right to edit human germ-line(种系)cells and make changes that are passed on to children. This is banned in 40 countries and restricted in many others. However, CRISPR means that if genes can be edited out, they can also be edited back in. It may be up to us as a society to decide when and where editing the genome is wrong.

Also, according to The Economist, gene editing may mean that parents make choices that are not obviously in the best interests of their children: “Deaf parents may prefer their children to be deaf too； parents might want to make their children more intelligent at all costs.

In the end, more research is still needed to see what we can and can't do with CRISPR. “It's still a huge mystery how we work,” Craig Mello? a UMass Medical School biologist and Nobel Prize winner, told The Boston Globe, "We're just trying to figure out this amazingly complicated thing we call life.

1.What is the passage mainly about?

A.What we can and can't do with CRISPR.

B.How CRISPR was developed by scientists.

C.The advantages of CRISPR and arguments about its ethics.

D.Scientists' experiments of using CRISPR to edit human embryos.

2.According to the passage, the technology of CRISPR .

A.is very safe because it only cuts the DNA it is looking for

B.is banned in most countries and restricted in many others

C.could cause parents to make unwise choices for their children

D.could help us discover the link between DNA and the qualities it gives people

3.It can be inferred from the passage that .

A.all diseases could probably be cured through the uses of CRISPR

B.scientists had never edited genomes before CRISPR was invented

C.CRISPR is a technology that uses an enzyme to work on RNA and DNA

D.CRISPR has proven to be the most effective way to protect children against diseases

4.What is the author's attitude towards CRISPR?

A.Supportive. B.Worried. C.Negative. D.Objective.

高三英语阅读理解困难题查看答案及解析

If you could change your child's DNA in the future to protect them against diseases, would you? It could be possible because of technology known as CRISPR- Cas, or just CRISPR.

CRISPR involves a piece of RNA, a chemical messenger, designed to work on one part of DNA; it also uses an enzyme that can take unwanted genes out and put new ones in, according to The Economist. There are other ways of editing DNA, but CRISPR will do it very simply, quickly, and exactly.

The uses of CRISPR could mean that cures are developed for everything from Alzheimer's to cancer to HIV. By allowing doctors to put just the right cancer-killing genes into a patient's immune system, the technology could help greatly.

The US' National Academy of Sciences plans to discuss questions about CRISPR s ethics(伦理问题). For example, CRISPR doesn't work properly yet. As well as cutting the DNA it is looking for, it often cuts other DNA, too. In addition, we currently seem to have too little understanding of what DNA gives people what qualities.

There are also moral questions around playing God. Of course, medicine already stops natural things from happening-for example, it saves people from infections. The opportunities to treat diseases make it hard to say we shouldn't keep going.

Also, according to The Economist, gene editing may mean that parents make choices that are not obviously in the best interests of their children: “Deaf parents may prefer their children to be deaf too; parents might want to make their children more intelligent at all costs.”

In the end, more research is still needed to see what we can and can't do with CRISPR. “It's still a huge mystery how we work,” Craig Mello, a UMass Medical School biologist and Nobel Prize winner, told The Boston Globe, “We're just trying to figure out this amazingly complicated thing we call life.”

1.What is the passage mainly about?

A.What we can and can't do with CRISPR.

B.The advantages of CRISPR and arguments about its ethics.

C.How CRISPR was developed by scientists.

D.Scientists' experiments of using CRISPR to edit human embryos.

2.What does the writer mean by saying “playing God” in Para. 5?

A.Playing jokes on religious people.

B.Asking God to help deal with moral questions.

C.Following the instructions of God.

D.Doing things that go against nature.

3.According to the passage, the technology of CRISPR　　　　　　　 .

A.is very safe because it only cuts the DNA it is looking for

B.is very helpful to cure people of any disease

C.could cause parents to make unwise choices for their children

D.could help us understand how complicated life is

4.What is the author's attitude towards CRISPR?

A.Objective. B.Worried.

C.Negative. D.Supportive.

高三英语阅读理解中等难度题查看答案及解析

Does the Body Burn Fat When You Are Hungry?

Your body stores fat as a way to help protect you against starvation if you can’t take in enough food. However, your fat reserve isn’t the first place your body goes for food. Instead, it reaches out for sugar for energy. 1.

Hunger is normally a reflection that your body has used up energy from recent food you ate and has moved onto getting energy from sugar in your blood. 2. The more sugar you take in, the more fuel your body has to use before it reaches out to the fat stores. If your body doesn’t have enough sugar to supply the energy it needs, it begins to burn fat when you’re hungry instead.

Missing meals and going hungry can change your metabolism (新陈代谢) so it stores fat instead of burning it. 3. However, if you skip meals for several days and severely lower your calorie (卡路里) intake, your body begins to store as much fat as possible.

4. Your body burns up sugar stored in your system and begins to burn fat as you continue to exercise. However, exercising when you’re hungry won’t help you burn fat faster. A recent study shows that the body burns the same amount of fat regardless of whether you are hungry when you exercise.

Staying hungry all day won’t necessarily help you burn fat, but cutting calories is key to losing weight. 5. Snack (吃点心) in between meals to keep your metabolism working all day, which helps it burn more fat than if it’s allowed to slow down when it’s not meal time. Snacking in between meals can help you control your meal sizes at meal time.

A. Exercise is key to burning fat.

B. You shouldn’t cut out food to cut calories.

C. This doesn’t happen in a day of missing meals.

D. Just being hungry doesn’t mean your body is burning fat.

E. If you take in less food than your body burns, you’ll lose weight.

F. Your body stores sugar in case you need it when you feel hungry.

G. Eat five or six small meals throughout the day instead of three large ones.

高三英语七选五简单题查看答案及解析