______, I suppose, and the housing problems f...

______, I suppose, and the housing problems for the low-income families could be solved.

A. If you double your efforts                                           B. To make some more efforts

C. Some more efforts                                                       D. Making greater efforts

高二英语单项填空中等难度题查看答案及解析

The famous film star was blamed for avoiding taxes that she was supposed to pay, and she has said nothing 　　　　 herself ever since.

A. in charge of　　 B. in case of

C. in defence of　　 D. in memory of

高二英语单项填空简单题查看答案及解析

The increasing environmental problems and need for eco-friendly products and services are creating a new job section of green-collar jobs. 1. It is expected that by 2025 about 25% of the jobs in developed countries will be of green-collar jobs. Doesn’t the data look promising for the future?

2. And jobs will pop up at every income level, from environmental manager to gardener. For example, many countries including the United States have understood that fossil fuels have negative effect on the environment which can later become a serious danger to mankind. 3. The increasing demand of newer resources has created the need for experts and researchers who can find better ways to deal with the ongoing needs. In addition, in order to meet the increasing demand of environment-friendly equipment, both green product designer and trained workers are needed. Management of environmental organizations also demands a large number of environmental managers.

4. Internet is undoubtedly the best way to find information on almost any matter. Nowadays, different kinds of jobs are being posted online. Search through a couple of job websites to look for a bright future in energy conversion and recycling of waste management. Check regularly and find the right work for yourself.   5.

A. People who read newspapers can also find different kinds of green-collar jobs.

B. People who take green careers will be well paid.

C. Where can you find green-collar jobs?

D. Green-collar jobs have become a bright career chance for all.

E. Many countries have realized the importance and need for energy-saving products and services.

F. Therefore, possibilities are being explored to find alternatives to meet demands in a better way.

G. Forget the blue–collar and white–collar categories.

高二英语七选五中等难度题查看答案及解析

The houses ________ are for the teachers and the construction work will start soon.

A. built　　 B. to be built

C. to built　　 D. being built

高二英语单项填空困难题查看答案及解析

Airplane emissions are a big problem for the climate—and steadily rising. Experts predict that aircraft emissions will triple（增三倍）by 2050 as demand for flights increases. To prevent this terrible situation, a team of scientists at the Massachusetts Institute of Technology, along with government and industry partners, is attempting to completely redesign airplanes.

Their idea, called the “double-bubble” D8, could significantly reduce plane’s carbon footprint and improve fuel efficiency if confirmed in full-scale tests. It involves major changes to the standard 180-passenger Being 737 and Airbus A320 aircraft.

The most significant change, though, is where the engines are fixed. Air slows down as it flows over the top of a traditional plane, thus creating drag and making the craft less efficient. But the D8 design moves the jet’s engines from their usual spot underneath the wings to the top of the plane’s body, by the tail—where they suck in and speed up the slow layer of air, greatly reducing drag.

These changes would make the aircraft use 37 percent less fuel than a typical passenger jet. The experts have already built and tested an 11th-scale model of the aircraft in a NASA wind tunnel. Combining the new design with future technological advances could further reduce fuel use and finally add up to 66 percent in fuel savings in two decades.

Other experts note that the D8’s develops must still overcome economic difficulties while ensuring that the engines are strong enough to handle the new design. Still, “it’s a very remarkable idea and design,” says Brian J. German, an aerospace engineer at the Georgia Institute of Technology, who was not involved in the work. The experts are now exploring the development of a half-scale model plane. If the effort succeeds, travelers may fly in one of these jets as soon as possible.

1.Why are airplane emissions steadily rising?

A. Because of the special climate.　　 B. Because of designing new airplanes.

C. Because of the increasing flights.　　 D. Because of the development of industry.

2.What are the most obvious changes of the new airplanes?

A. Their engine shape.　　 B. Their engine weight.

C. Their engine position.　　 D. Their engine power.

3.How do the experts reduce pollution from planes?

A. Using 11th-scale models.　　 B. Saving energy.

C. Inventing stronger engines.　　 D. Improving typical passenger jets.

4.How is the new plane progressing?

A. It meets with economic difficulty.　　 B. It is at the laboratory stage.

C. It may fly as soon as possible.　　 D. It is testing with its new engine.

高二英语阅读理解中等难度题查看答案及解析

_____ ashes from the volcano in Iceland have caused problems for air traffic and business, scientists don't think it will have long-term effects on human health.

高二英语单项填空简单题查看答案及解析

The world has a fast growing population and people need more land for houses, factories, highways, and so on. The farmland is decreasing with each passing day. How to meet the need of feeding the growing population? One way is to introduce some high-output gene into a crop to enable it to produce more. Biologists over the years have discovered genes which can raise output of the crops, resist pests, improve taste, etc.

However, in many western countries there is widespread concern over the safety of “Genetically Modified”(GM) (转基因) foods, because they think there may be serious problems of environment, health, safety, morality and so on.

As a scientist I must admit GM foods involve great risks to humans. In fact in Europe they’re called “Frankenstein foods” by many. Frankenstein is a character in a novel. He was a very clever scientist. He created a monster(怪物), which eventually killed him.

Soybeans can be made into many foods. However, it’s hard to trace them. Therefore, it’s very important we have to make sure the soybean, if genetically modified, is free from any poisonous matter harmful to human beings. For this we need very good testing. We do have some testing on some animals, but no completely satisfactory testing has ever been made so far. They’re entirely new, and their problems are entirely unknown. It takes time to develop persuasive tests to know whether they’re harmful to us or not.

We may not be able to tell what may happen if we take GM foods. Some of them may be resistant to antibiotics (抗生素). Then many of the medicines we have today will have no effect on people eating GM foods.

A more likely case is the GM foods may contain genes some people are allergic to.

GM products have already come into our lives but most people even know nothing about it. At least we have to be clear about what we are eating. The China Consumers Association is calling for labeling (标注) on GM foods so that consumers will know before they buy them.

1.From the passage we can infer that _____.

A. Frankenstein foods can make people clever

B.B.GM foods are very popular in Europe

C. many Europeans reject GM foods

D. Frankenstein was a scientist creating GM foods

2.The underlined phrase “trace them” in Paragraph 4 probably means“　　　　 ”.

A. find their market 　　　　　　 B. raise their quality

C .find their origins 　　　　　 D. enjoy their taste

3.Which of the following is TRUE about GM foods?

A. The testing shows GM soybean foods are free from poisonous matter.

B. Sometimes consumers can hardly tell GM soybeans from natural ones.

C.GM foods prove to be safe to humans after some testing on animals.

D.GM foods problems have been known after testing on animals.

4.What can we learn from the passage?

A.GM foods make antibiotics fail to function properly.

B. People eating GM foods will suffer from food allergies.

C.People should be informed of which foods are GM foods.

D.As GM foods are safe at present, they’re certainly safe later on.

高二英语阅读理解中等难度题查看答案及解析

My friend Kathy and I were going to Colorado Springs for holiday. The only problem was, I didn’t have any luggage to pack my belongings in.

My friend Debbie offered to lend me a suitcase that belonged to her father, who had passed away long ago. “I don’t know if you’ll want to use it,” she said so gently, “it’s very old, worn out, and such an ugly yellow color." I was so touched by her offer to lend something that belonged to her father, but I was also concerned about the possibility of it being damaged or lost. She insisted that I take it. So with the suitcase safely in hand, I boarded the train with Kathy.

We spent two days and one night on the train, sleeping in our seats. As we slept, we were awakened at times, by the noises of the train pulling in and out of the stations.

The next morning we eagerly awaited the announcement: Next stop, Colorado Springs. But suddenly, there came another announcement over the loud speaker. “During one of the overnight stops, many pieces of luggage were mistakenly removed from the train and left at the wrong location.”

Kathy and I just looked at each other, as I felt the disappointment swell. Could my worst fear be coming true, was Debbie’s suitcase lost?

Just then two train conductors passed our seats. One of them jokingly said to the other, “Did you ever see such an old, ugly, brighter yellow, piece of luggage in all of your life?”

Before the other conductor could answer, I screamed, “YES, MY SUITCASE MADE IT!”

The two conductors stopped in their tracks! and, very red in the face, couldn’t seem to apologize enough for having insulted my suitcase.

When I returned it, I couldn’t wait to get the suitcase back into Debbie’s safe hands. She asked, “Did everything go well on the trip?” Somehow. I just couldn’t resist telling her what had happened. She laughed heartily.

When I recall the golden suitcase, Fm reminded, that like the suitcase, we can see ourselves as too old, useless, worn out, and of little value. Or, we can take a closer look and realize that we are one of God’s most valued creations -- unique, and holding inside our most valuable possessions -- that of love, faith, hope, and wisdom.

1.Hearing the announcements, the author　　　　　 .

A. was happy to reach the destination

B. felt angry at the service on the train

C. feared that the suit case might be lost

D. asked the conductors to look for the suitcase

2.How did the two conductors feel when the author claimed her suitcase?

A. Puzzled.　　 B. Embarrassed.

C. Astonished.　　 D. Amused.

3.From the last paragraph we can learn that 　　　　　　 .

A. a friend in need is a friend indeed

B. God helps those who help themselves

C. inner beauty is more important than appearance

D. a journey of a thousand miles begins with a single step

4.Which of the following is the best title for the passage?

A. The Golden Suitcase.　　 B. An Unforgettable Trip.

C. A Warm-hearted Friend.　　 D. Two Impolite Conductors.

高二英语阅读理解困难题查看答案及解析

The policeman came up to the house, whose door was open, ________ there for a while, and went in.

A．to stand　　　　　　 B．standing　　　　　 C．stood　　　　　　　　 D．stand

高二英语单项填空简单题查看答案及解析

China’s one-child policy has been in place for decades and is causing ageing problem. So the news that China abandons one-child policy is _________ with cheers from many married couples.

A. behaved　 B. greeted　 C. hugged　 D. equipped

高二英语单项填空中等难度题查看答案及解析