— They are said to have been familiar with ea...

— They are said to have been familiar with each other.

— But they_________. They were introduced only hours ago.

A. may not have been B. couldn’t have been

C. mustn’t have been　 D. needn’t have been

高三英语单项填空中等难度题查看答案及解析

Not only ____ at music, but also they are ready to help others.

高三英语单项填空简单题查看答案及解析

The old couple have been married for 40 years and never once _______ with each other.

A. they had quarreled　　　　　　　　 B. they have quarreled

C. have they quarreled　　　　　　　　 D. had they quarreled

高三英语单项填空中等难度题查看答案及解析

In an apartment, people are having a party. They’re smiling and chatting with each other; they’re drinking cocktails and enjoying snacks. But the mood lighting is a bit strange. No candles or twinkling Christmas lights here. Instead, the light comes from enormous green-glowing plants in the center of the table.

This is a model inside a museum in New York. The “people” are small silver statues. But the plants are real. They’re watercress planted with nanoparticles (纳米粒) that turn their stored energy into light. It’s a technology developed several years ago by MIT chemical engineer Michael Strano. Now, Strano has partnered with an architect, Sheila Kennedy, to explore how these plants might be a central part of our homes and sustainable energy future.

The plants in the exhibit are newer versions. Their glow is based on an enzyme (酶) called luciferase, which is what gives fireflies their light. Strano and his colleagues first put luciferase and two molecules (分子) that allow it to work inside a nanoparticle carrier. They then immersed plants in a liquid containing the particles, and added high pressure. The pressure pushed the particles into the leaves through tiny pores (气孔).

“For the last two decades, plants have been a part of architecture, but they’ve always been used as green walls or roofs,” Kennedy says. However, the plants in Kennedy’s models fill entire rooms, their leaves and stems going wherever they choose. For her, this project was an interesting design challenge. She and her team had to figure out how to bring in sufficient water and where to contain enormous amounts of soil.

The team is currently working on making the plants brighter and fixing light particles in larger plants such as trees. They’re also eager to extend the duration of a plant’s light from hours to days or weeks.

1.What is special about the apartment according to the first two paragraphs?

A.Plants provide mood lighting for it. B.It is powered by nanoparticles.

C.Real people are enjoying themselves in it. D.It is modeled after a real one.

2.What is the third paragraph mainly about?

A.What the model is like. B.What gives fireflies light.

C.How the nanoparticles work. D.How to make the plants glow.

3.What actually makes the plants produce light?

A.Luciferase. B.Fireflies. C.Molecules. D.Pressure.

4.What can we know about the plants in Kennedy’s models?

A.The plants grow in restricted space.

B.The plants have grown as large as trees.

C.The plants still need water and soil.

D.The light of the plants can last weeks.

高三英语阅读理解中等难度题查看答案及解析

I know Mr Brown；we _____ to each other at an international conference.

高三英语单项填空简单题查看答案及解析

Dolphins (海豚) are not fish, but warm-blooded animals. They live in groups, and speak to each other in their own language. In this way they are like other animals, such as bees and birds. But dolphins are very different from almost all land animals. Their brain is nearly the same size as our own, and they live a long time --- at least twenty or thirty years.

Like some animals, dolphins use sound to help them find their way around. They also make these sounds to talk to each other and to help them find food. We now know they do not use their ears to receive these sounds, but the lower part of the mouth, called the jaw.

Strangely, dolphins seem to like man, and for thousands of years there have been stories about the dolphin and its friendship with people.

There is a story about sailors in the 19th century. In a dangerous part of the sea off the coast of New Zealand, they learnt to look for a dolphin called Jack. From 1871 to 1903 Jack met every boat in the area and showed it the way. Then in 1903 a passenger on a boat called The Penguin shot and wounded Jack. He recovered and for nine years more continued to guide all ships through the area－except for The Penguin.

Today, some people continue to kill dolphins, but many countries of the world now protect them and in these places it is against the law to kill them.

1.By telling the story of Jack the writer wanted to show that _____.

A. people are cruel to animals

B. dolphins are friendly and clever

C. Jack is different from other dolphins

D. dolphins should be protected by law

2.Dolphins are different from many other animals in that they _____.

A. live in groups　 　　　　　　　　　　 B. have their own language

C. are warm-blooded　 　　　　　　　　 D. have large brains

3.Which of the following does the dolphin use to help it find its way around?

A. Its mouth.　 　　　　　　　　 B. Its ears.

C. Its nose.　　 　　　　　　 D. Its eyes.

4.Why did the sailors off the coast of New Zealand look for Jack?

A. They wanted his help.

B. They enjoyed playing with him.

C. He was seriously wounded.

D. He was lonely and liked to be with people

高三英语阅读理解中等难度题查看答案及解析

It’s often said of British people that they are very aware of each other’s social rank. Britons can usually work out a fellow countryman’s background from the way they speak or dress, and may even treat them differently based on this. But although this may have been truer in the past than it is today, visitors to Britain say that they still notice it. The comic play Pygmalion (1913), by the Irishman George Bernard Shaw (1856-1950), is a famous exploration of the importance of social rank in British society.

The main story of the play concerns a working class girl, Eliza Doolittle, a flower seller from London. Two upper class gentlemen try to see if they can get Doolittle to appear like an upper class lady after sending her for elocution lessons. Professor Henry Higgins, a language expert, says it can be done; his friend Colonel Pickering says that it’s impossible. Even so, Higgins sets out to teach Eliza how to “speak properly”.

Of course, Eliza isn’t a lump of clay; she has her own will. She can see that it’s in her best interest to go along with Higgins’ plan to “improve herself”. She wants to be able to sell flowers in a shop rather than on the street. After the training, Eliza proves that a flower girl can pass herself off as a lady at a ball. She is a triumph (赢家), and Higgins has won his bet.

But what happens next? Eliza has her future to worry about. She may be able to fool the upper class into thinking she’s one of them, but she isn’t really one of them.

Shaw seems to be telling us that social rank is about more than the way someone talks-it’s about wealth and privilege. The whole experiment proves the idea that accents and classes are very superficial (肤浅的). The way one speaks and dresses are only markers of class. The class system itself, however, is something completely different.

1.What can we learn about speaking and dressing from Paragraph 1?

A. They determine Britons’ social rank.

B. Britons are stricter in them nowadays.

C. Britons no longer care about them.

D. They could affect others’ opinion of a person.

2.Which can replace the underlined word “elocution”?

A. dress　　 B. manners

C. speech　　 D. dance

3.What happens to Eliza Doolittle during the experiment?

A. She is forced to give up selling flowers on the street.

B. She is unwilling to participate in the experiment.

C. She is thought of as an upper-class lady at the hall.

D. She is hopeful about her future.

4.Which of the following would Shaw probably agree with?

A. One can enter the upper class after receiving training.

B. People should try their best to improve their accents.

C. The way people speak greatly affects their social status.

D. Social rank can t he judged by dressing or speaking.

高三英语阅读理解中等难度题查看答案及解析

When they met, they stopped and said hello to_______.

高三英语单项填空简单题查看答案及解析

50. When they met, they stopped and said hello to_______.

高三英语单项填空简单题查看答案及解析

Birds have long been known to be the disease carries for years, but now they are receiving so much pressure due to Avian Bird Flu. Bird cause health danger to humans and animals in or around their droppings.

Bird Buffer Q2, is designed to protect your facility from unwanted troublesome birds naturally, and is especially effective for sparrow control. When birds keep coming back and you’ve tried everything imaginable, it’s time for Bird Buffer Q2.

Bird control is now safe, easy, and economical with Bird Buffer. The Bird Buffer is also simple to operate. Just hang it with Bird Buffer cables or set it on the roof. Fill it with the specially?prepared liquid, and turn it on. It is that simple. Bird Buffer Q2 is a permanent, automatic and cost?effective commercial process for indoor and outdoor bird control. Contact Bird Buffer LLC ＠www. Birdbuffer.com or call 866－557－4274.

Bird Buffer Q2 Frequently Asked Questions:

a) How does Bird Buffer Q2 work?

It is operated by an electrically?controlled sprayer(喷雾器）to spread the vapor at 90 mph over larger areas. A time releases the vapor every 2 minutes into the air to keep fresh vapor in the area for birds. When birds fly through the area, the tiny particles（颗粒） of vapor enter the birds breathing system, making the birds fly away. When the birds come back, they once again breathe the particles and fly away. After a few weeks, birds remember their responses and stay away.

b) How much water is needed per month?

About one gallon a mouth

c) How long does it take to get bird control?

Usually two weeks is enough to control flocks of birds from the treated area. It takes time for the birds to find a new home and new feeding grounds.

1.It can be inferred that the text is used_________.    .

A．to promote the product

B．to warn people not to go near birds

C．to remind people of the present situation of bird control is

D．to inform people what the present situation of bird control is

2.Where can Bird Buffer Q2 be most likely used?

A．In basements.                          B．In wild forests.

C．In wildlife zoos.                         D．In outdoor restaurants.

3.Which of the following words can best describe Bird Buffer Q2?

A．Attractive         B．Inexpensive        C．Time?saving        D．Dangerous

4.All of the following aspects of bird control using Bird Buffer Q2 are mentioned except_______.

A．the time taken                         B．the amount of water needed

C．the way it works                        D．the side effects brought about

高三英语阅读理解中等难度题查看答案及解析