Cloning technology can human life by creating...

Cloning technology can　　　　　　 human life by creating human organs to replace those which fail to function.

A. adjust　　 B. substitute　　 C. extend　　 D. Transform

高三英语单项填空简单题查看答案及解析

Human cloning technology could be used to reserve heart attacks. Scientists believe that they may be able to treat heart attack by cloning their healthy heart cells and injecting them into the areas of the heart that have been damaged, and other problems may be solved if human cloning and its technology are not forbidden.

With cloning, infertile couples could have children. Current treatments for infertility, in terms of percentages, are not very successful. Couples go through physical and emotionally painful procedures for a small chance of having children. Many couples run out of time and money without successfully having children. Human cloning could make it possible for many more infertile couples to have children than ever before.

We should be able to clone the bone marrow（骨髓） for children and adults suffering from leukemia（白血病）. This is expected to be one of the first benefits to come from cloning technology. We may learn how to switch cells on and off through cloning and thus be able to cure cancer.

Cloning technology can be used to test for and perhaps cure gene-related diseases. The above is just a few examples of what human cloning technology can do for mankind. This new technology promises unprecedented （前所未有的）advancement in medicine if people will release their fears and let the benefit begin.

1.What does the underlined word “infertile” (paragraph 2) most probably mean?

A. with physical and emotional problems

B. short of time and money

C. unable to give birth to children

D. separated from each other for a long time

2.According to the text, one of the first expected benefits from cloning technology is in ______.

A. the treatment of mental diseases

B. the reserve of heart diseases

C. the cure of gene-related diseases

D. the bearing of babies

3.According to the writer, the main problem with the development of human cloning technology is that__________.

A. it has brought about benefits so far

B. it may be out of human control

C. people still know little about it

D. people are afraid of such technology

高三英语阅读理解中等难度题查看答案及解析

I believe we can create our own happiness. I believe the real magic in the world is done by humans.

I was sitting in my ______ at a stoplight listening to the radio, thinking how happy and warm I was in it. It was ______ outside, and I thought, “Life is good."

Now, this was a long line. As I ______ , I noticed two people huddled (挤在一起) together at the bus stop. The couple seemed to be doing their best to keep ________To my eyes, they were unhappy and uncomfortable. They looked ________Their coats looked like they came from a bargain store.

But then I saw their ______.Yes, they were huddling, but they were also laughing. They seemed to be sharing a good ______, and suddenly, instead of pitying them, I envied them. I thought, "Huh, what's so funny?" They didn't notice the wind. They weren't looking at my car thinking, "I ______ I had that."

You know ______ a single moment feels like an hour? Well, in that moment, I realized I had ______ things were all bad for them, but they weren't. And I understood we all have the ______to make moments of ______ happen.

Now, maybe that's easy for me to say. I feel lucky to have a house with a roof and a wife who ______ me. I felt this ______ even when I was working at Long John Silver's. In the beginning, it didn’t seem like a promising job. But ______ I had a job. And frankly, it was ______. After two weeks, I knew all I needed to know, and it freed my mind. The job allowed me to ______ about what my life could become.

The first year I worked there, we got robbed. I thought I was going to die. But everything ______ out all right. A lot of people ______ life as a series of miserable tasks, but after that, I didn't.

I believe this is _____ all of us can do: Try to be happy within the context of the life we are actually living. Happiness is not a situation to be longed for or a convergence of luck. Through the power of our own minds, we can help ourselves.

1.A.store B.office C.house D.car

2.A.bright B.cold C.warm D.dark

3.A.walked B.returned C.complained D.waited

4.A.warm B.calm C.close D.active

5.A.innocent B.helpless C.poor D.strange

6.A.coats B.faces C.bags D.backs

7.A.joke B.speech C.offer D.idea

8.A.regret B.promise C.wish D.hope

9.A.when B.how C.why D.what

10.A.worried B.found C.admitted D.reckoned

11.A.power B.promise C.demand D.chance

12.A.excitement B.satisfaction C.happiness D.trouble

13.A.makes up for B.puts up with C.breaks up with D.keeps up with

14.A.way B.case C.point D.sense

15.A.at first B.at least C.in fact D.in brief

16.A.funny B.fine C.precious D.easy

17.A.come B.care C.bring D.dream

18.A.proved B.helped C.turned D.got

19.A.think B.look C.regard D.act

20.A.anything B.something C.everything D.nothing

高三英语完形填空中等难度题查看答案及解析

In the near future, more advances in cloning technology ________ by scientists.

A．are making        B．are made          C．will make          D．will be made

高三英语单项填空中等难度题查看答案及解析

Among all the fast growing science and technology, the research of human genes, or biological engineering as people call it, is drawing more and more attention now. Sometimes it is a hot topic discussed by people.

The greatest thing that gene technology can do is to cure serious diseases that doctors at present can almost do nothing with, such as cancer and heart disease. Every year, millions of people are murdered by these two killers. And to date, doctors have not found an effective way to cure them. But if the gene technology is applied, not only these two diseases can be cured completely, bringing happiness and more living days to the patients, but also the great amount of money people spend on curing their diseases can be saved, therefore it benefits the economy as well. In addition, human life span(寿命) can be prolonged.

Gene technology can help people to give birth to healthy and clever children. Some families, with the English imperial family being a good example, have hereditary(遗传的) diseases. This means their children will for sure have the family disease, which is a great trouble for these families. In the past, doctors could do nothing about hereditary diseases. But gene technology can solve this problem perfectly. The scientist just need to find the wrong gene and correct it, and a healthy child will be born.

Some people are worrying that the gene research can be used to manufacture human beings in large quantities. In the past few years, scientists have succeeded in cloning a sheep, therefore these people predict that human babies would soon be cloned. But I believe cloned babies will not come out in large quantities, for most couples in the world can have babies in very normal way. Of course, the government must take care to control gene technology.

1.What does “these two killers” in the second paragraph refer to?

A. Gene technology and another treatment of the two diseases.

B. The two murderers who killed the cloned baby.

C. The two diseases of cancer and heart disease.

D. Hereditary diseases and cancer.

2.What’s the main idea of the third paragraph?

A. How gene technology can be applied in the field of treating hereditary diseases.

B. Gene technology can be used to clone human babies.

C. Gene technology can help people to give birth to a baby.

D. Gene technology can help the English imperial family out.

3.In what way gene technology can help to treat hereditary diseases?

A. Using gene technology, people with hereditary diseases can have more living days.

B. Using gene technology, the scientist finds the wrong gene and corrects it.

C. Using gene technology, human babies can be cloned.

D. Doctors can cure cancer and heart disease with the help of gene technology.

4.What is the main purpose of writing this passage?

A. Expressing the writer’s idea that gene technology will benefit people.

B. Telling people the disadvantages of gene technology.

C. Telling the readers that gene technology will not benefit people.

D. Explaining that gene technology will also do harm to the humanity.

高三英语阅读理解中等难度题查看答案及解析

Scientists have created a way to control a robot with signals from human brain.By generating the proper brainwaves—picked up by a cap with electrodes (电极) that sense the signals and reflect a person’s instructions—scientists can instruct a humanoid(类人的) robot to move to specific locations and pick up certain objects.

The commands are limited to moving forward，picking up one of two objects and bringing it to one of two locations.The researchers have achieved 94 percent accuracy between the thought commands and the robot’s movements.

“This is really a proof­of­concept demonstration，” said Rajesh Rao，a researcher from the University of Washington who leads the project.“It suggests that one day we might be able to use semi­autonomous robots for such jobs as helping disabled people or performing routine tasks in a person’s home.”

The person wearing the electrode cap watches the robot’s movements on a computer screen through two cameras installed on and above the robot.

When the robot’s cameras see the objects that are to be picked up they pass on the information to the user’s computer screen.Each object lights up randomly on the computer screen.When a person wants something picked up and it happens to light up，the brain registers surprise and sends this brain activity to the computer and then to the robot.The robot then proceeds to pick up the object.

A similar algorithm(计算程序) is used to decide where the robot will go.

“One of the important things about this demonstration is that we’re using a ‘noisy’ brain signal to control the robot，” Rao said.“That means we can only obtain brain signals indirectly from sensors on the surface of the head，not where they are generated deep in the brain.As a result，the user can only generate high­level commands such as indicating which object to pick up or which location to go to，and the robot needs to be autonomous enough to be able to execute such commands.”

In the future，the researchers hope to make the robots more adaptive to the environment by having them carry out more complex commands.

1.What is special about the robot introduced in the passage?

A．It is controlled by human thoughts.

B．It can be made humanoid.

C．It can be used to help the disabled.

D．It has high intelligence itself.

2.Which of the following is TRUE about the robot?

A．It can move forward and backward and pick up two objects at the same time.

B．It can move forward，pick up both objects and bring them to either location.

C．It can only move forward，pick up one object and put it in one location.

D．It can read all human thought demands and do as instructed.

3.What Rao said suggests that the new robot________.

A．is still at its early stage of development

B．will be widely used in our daily routine soon

C．is autonomous enough to complete complex commands

D．is only limited to doing routine work at home

4.The sixth paragraph mainly describes ________.

A．how the robot reacts to a person’s instructions

B．how the robot picks up the right object

C．the functions of the computer

D．how the robot finds out where to go

5.The underlined word “registers” in the passage can be best replaced by “________”．

A．receives　 B．shows　　 C．writes down　 　 D．picks up

高三英语阅读理解中等难度题查看答案及解析

Can noncombustion (非燃烧) technology create a no-pollution way to drive？Imagine pulling into a service station to fuel up your car. But not at the gas pump or electric battery charger —at the air pump! That’s not hot air, either! The next generation of cars may run on thin air. Wouldn’t that be an incredible way to cut both pollution and dependence on foreign oil?

If you’ve ever inflated a balloon and then let it go, you’ve got the basics to test-drive the amazing MiniCAT, currently being developed by Noteur Development International (MDI), headquartered in Luxembourg. Invented by Formula One racing car designer Guy Negre, this experimental vehicle is unlike any car you’ve ever seen. While your family’s traditional car or SUV draws its horsepower using combustion, the only fuel that MiniCAT needs (CAT stands for Compressed Air Technology) is the air we breathe.

Start with about 25,000 gallons of air. Now, press it all into a space smaller than your school locker—because that’s the size of two super-strong, high-pressure air tanks, made from fiber and fixed beneath the air car.　

Confining that much air inside those small tanks generates an internal pressure of over 4,000 pounds per square inch. That’s over 300 times normal air pressure.

When this cold, high-pressure air enters MiniCAT’s unique engine, it interacts(交互作用) with warmer air to create pressure waves that pump the engine’s engineered pistons (活塞) to move the car. MiniCAT’s projected top speed is 60 miles per hour, with a range of 120 miles on a full air supply.

1.What is the passage mainly about?

A. Ways to cut down air pollution.　　　　　　　　

B. Cars that run on thin air.

C. Formula One racing car designer.　　　　　　　

D. Dependence on foreign oil.

2.What is MiniCAT according to the passage?

A. The name of a car.　　　　　　　　　　　　　　　

B. The name of a balloon.

C. The name of a car company.　　　　　　　　　　

D. The name of a car designer.

3.The underlined world “Confining” in Paragraph 4 can be replaced by ___________.

A. Keeping　　　　　　　　 B. Preventing　　　　　     C. Pushing　　　　　　 D. Running

4.What does the last paragraph tell us?

A. How much pressure the air creates.　　　　　　

B. How the car works.

C. What the normal air pressure is.　　　　　　　

D. How the air gets into the engine.

高三英语阅读理解中等难度题查看答案及解析

. The main fact(or)s in human life are five: birth, food, sleep, love and death. (One could increase the number— add breathing for instance— but these five are the most obvious.) Let us ask ourselves ________ our lives.

高三英语单项填空简单题查看答案及解析

Discoveries in science and technology are thought by “untaught minds” to come in blinding flashes or as the result of dramatic accidents. Sir Alexander Fleming did not, as legend would have it, look at the mold (霉) on a piece of cheese and get the idea for penicillin there and then. He experimented with antibacterial substances for nine years before he made his discovery. Inventions and innovations almost always come out of tough trial and error. Innovation is like soccer; even the best players miss the goal and have their shots blocked much more frequently than they score.

The point is that the players who score most are the ones who take most shots at the goal—and so it goes with innovation in any field of activity. The prime difference between innovation and others is one of approach. Everybody gets ideas, but innovators work consciously on theirs, and they follow them through until they prove practicable or otherwise. What ordinary people see as fanciful abstractions, professional innovators see as solid possibilities.

“Creative thinking may mean simply the realization that there’s no particular goodness in doing things the way they have always been done.” Wrote Rudolph Flesch, a language authority. This accounts for our reaction to seemingly simple innovations like plastic garbage bags and suitcases on wheels that make life more convenient: “How come nobody thought of that before?”

The creative approach begins with the proposal that nothing be as it appears. Innovators will not accept that there is only one way to do anything. Faced with getting from A to B, the average person will automatically set out on the best-known and apparently simplest route. The innovator will search for alternate courses, which may prove easier in the long run and are sure to be more interesting and challenging even if they lead to dead ends. Highly creative individuals really do march to a different drummer.

1.What does the author probably mean by “untaught mind” in the first paragraph?

A. An individual who often comes up with new ideas by accident.

B. A person who has had no education.

C. A citizen of a society that restricts personal creativity.

D. A person ignorant of the hard work involved in experimentation.

2.According to the author, what differs innovators from non-innovators?

A. The way they present their findings.　　 B. The way they deal with problems.

C. The intelligence they possess.　　 D. The variety of ideas they have.

3.The phrase “march to a different drummer” (the last line of the passage) suggests that highly creative individuals are ________.

A. unwilling to follow common ways of doing things

B. diligent in pursuing their goals

C. concerned about the advance of society

D. devoted to the progress of science

4.The most suitable title for this passage might be ________.

A. The Relation Between Creation and Diligence

B. To Be a Creative Expert in the Study of Human Creativity

C. What Are So Special about Creative Individuals

D. Discoveries and Innovation

高三英语阅读理解中等难度题查看答案及解析

Anyone who commutes (通勤) by car knows that traffic jams are an unavoidable part of life. But humans are not alone in facing potential backups.

Ants also commute—between their nest and sources of food. The survival of their colonies depends on doing this efficiently.

When humans commute, there’s a point at which cars become dense (稠密) enough to slow down the flow of traffic, causing jam. Motsch, a mathematician in Arizona State University, and his colleagues wanted to know if ants on the move could also get stuck. So they regulated traffic density by constructing bridges of various widths between a colony of Argentine ants and a source of food. Then they waited and watched. “The goal was to try to find out at what point they are going to have a traffic jam.” said Sebastien Motsch.

But it appears that that never happened. They always managed to avoid traffic jam. The flow of ants did increase at the beginning as ants started to fill the bridge and then levelled off at high densities. But it never slowed down or stopped, even when the bridge was nearly filled with ants.

The researchers then took a closer look at how the behaviour of individual ants impacted traffic as a whole. And they found that when ants sense overcrowding, they adjust their speeds and avoid entering high-density areas, which prevents jams. These behaviours may be promoted by pheromones, chemicals that tell other ants where a trail is. The ants also manage to avoid colliding (碰撞) with each other at high densities, which could really slow them down. The study is in the journal eLife.

Can ants help us solve our own traffic problems? Not likely, says Motsch. That’s because when it comes to getting from point A to point B as fast as possible, human drivers put their own goals first. Individual ants have to be more cooperative in order to feed the colony. But the research could be useful in improving traffic flow for self-driving cars, which can be designed to be less like selfish humans—and more like ants.

1.What does the underlined word “this” in para.2 refer to?

A.Surviving. B.Commuting.

C.Finding food. D.Avoiding jams.

2.How did the researchers control the traffic density of the commuting ants?

A.By finding out the dense points. B.Through closer observation.

C.By controlling the widths of their path. D.By regulating their numbers.

3.According to the research, ants can avoid traffic jams mainly because ________.

A.they follow a special route.

B.they level off at high densities.

C.they never stop or slow down on the way.

D.they depend on their natural chemicals to adjust their speeds.

4.What is the best title of the passage?

A.Traffic jams. B.Unavoidable? Not for ants!

C.Survival of an ant colony. D.Difference between human and ants.

高三英语阅读理解中等难度题查看答案及解析