It's ten years since the scientist _______to ...

It's ten years since the scientist _______to discover the valuable chemical.

A．kept up           B．set out            C．took in            D．set about

高二英语单项填空中等难度题查看答案及解析

It is ten years since the scientist ______ on his life’s work of discovering the valuable    chemical.

A．made for          B．set out            C．took off           D．turned up

高二英语单项填空中等难度题查看答案及解析

---It’s the second time that I ___ to Shanghai.

---What great changes! It’s ten years since I _____ it last time.

A. have been, left                      B. had been, left　           C. am, had left　    D. come, had left

高二英语单项填空简单题查看答案及解析

—It is the first time that I ________ here in Hong Kong.

—What great changes！It’s ten years since I ________here last time.

A．have been；came                     B．have been；have come

C．am；came                            D．was；have been

高二英语单项填空中等难度题查看答案及解析

It’s _______ thrill to have ______ ten-year research project completed with the desired result.

A. / ; the       B. a; the       C. the; a         D. a; a

高二英语单项填空中等难度题查看答案及解析

Listening to music an help me focus better. Since I discovered it two years ago, I’ve used music to get through boring work or to focus creatively. I’ve found that it can make even the dullest jobs enjoyable and help clear mental blocks to creativity.

I first noticed the good effects of music while playing video games. It was a few days before Christmas in 2012 and I was playing online video games. My parents had just given me a new MP3, so I decided to listen to music through the headphones while I played. After a few minutes I noticed a great change in my style of play. I was playing more naturally. The music relaxed me, and, to a certain extent, distracted me from the game, allowing my subconscious（潜意识的）talent to come through. The music also helped me block out the outside world. With those headphones on I was like a machine, moving from one task to the next without unnecessary thoughts or actions.

Music can also have a great effect on mood, if I’m in a bad mood at work, I’ll listen to some of Bob Marley’s and get down to business. It always takes my mind off what I’m doing and makes me a happier person. The same is true of classic rock. One summer, I did a boring job collecting bottle openers by hand. Without a radio playing classic rock in the background, I would have hated life.

Listening to music with relaxing rhythms and a positive message helps you forget your work and think happy thoughts. But the results you see will depend heavily on your personal tastes. Experiment with the types of music you listen to during certain tasks. By trial and error you’ll finally discover your best choice. I’m always looking for new concentration aids, so I’d love to know what type of music works best for me.

1.We can infer that the passage was written in 　　　　 .

A. 2010　　　　　　　　　 B. 2012　　　　　　　　 C. 2013　　　　　　　　　 D. 2014

2.The author first discovered the effects of music 　　　　　　 .

A. from his parents　　　　 B. by chance

C. at work　　　　　　 　　　 D. when he was a child

3.The author mentions the experience of collecting bottle openers in Paragraph 3 to 　　　 .

A. tell us that life is dull

B. prove that music affects mood

C. tell us how to seek happiness

D. tell us bad mood can affect work

4.In order to get the greatest effect of music, you are advised to 　　　　　　 .

A. listen to some of Bob Marley’s

B. only choose relaxing music

C. test all kinds of music

D. listen to classic rock

高二英语阅读理解中等难度题查看答案及解析

Gabi Rizea only discovered his talent for woodcarving three years ago, and has since put 1. to good use, saving dozens of old tree stumps (树桩) from 2. (remove) by turning them into impressive works of art.

Rizea became a woodcarver 3. (complete) by accident. Three years ago, after buying himself a new chainsaw (链锯), he 4. (start) “playing” with it on a block of wood. He tried carving a human face into the wood, and to his surprise, it turned out pretty good. Today, he is so good at woodcarving that his home city allows him to work his magic on old tree stumps and so far about 40 works of art 5. (create) in the local parks.

“In 99% of the cases, the wood just doesn’t match my ideas,” he said in an interview. “I first have to remove all the rotten parts, and sometimes,6. is left isn’t enough for my designs.”

Following his recent rise to fame, Rizea has been asked by many 7. (city), including the capital of Romania to transform their old tree trunks 8. works of art. He promised to honor their requests, but he will never repeat any of the artworks 9. (find) in his home city.

In spite of his obvious talent, the Romanian 10. (art) recently got into art school in order to fully master woodcarving.

高二英语语法填空简单题查看答案及解析

Have you seen Jurassic Park? In this film, scientists use DNA kept for tens of millions of years to clone dinosaurs. They find trouble, however, when they realize that the cloned creatures are smarter and more dangerous than expected. That’s nothing more than a fiction.

But could we really clone endangered animals?

To date, the most successful attempt to do so was the cloning of a gaur, a rare ox-like animal from southeast Asia. Scientists used a cow to bring the cloned baby gaur, named Noah. Two days after birth, however, Noah died from a common bacterial infection. Other endangered species that may be cloned include the African bongo antelope (羚羊), the Sumatran tiger, the cheetah (猎豹), and the giant panda.

Next, could we really clone extinct animals?

In theory? Yes. To do this, you need a well-kept source of DNA from the extinct animals such as wool mammoth (毛象), Tasmanian tiger, or even dinosaur, and a closely related species, still living, which could serve as a surrogate mother.

In reality? Probably not. On the one hand, it’s not likely that extinct animals’ DNA could survive undamaged for such a long time. Cloning such extinct animals as wool mammoth, Tasmanian tiger, or dinosaur is much more difficult due to the lack of properly well-preserved DNA. On the other hand, for example, a gaur can have a cow as a surrogate mother, definitely not a monkey. But what about an extinct animal as unique as the panda? What species could possibly serve as a surrogate mother?

Cloning presents many exciting possibilities. However, even if extinct animals were brought back, they could not survive in today’s world. Not only do most extinct animals have no habitat to love in, but the other plants and animals they depended on for food may also be gone as well.

1. It can be learned from the text that ________.

A. the gaur is an extinct species

B. the gaur lives in Asia and is endangered

C. scientists have cloned the African bongo antelope

D. both the cheetah and the giant panda live in Asia

2.The underlined words “a surrogate mother” probably refer to a female who ______.

A. gives birth to a baby of its own                 B. cannot give birth to a baby

C. gives birth to a baby for another female             D. provides DNA

3.The difficulty in cloning an extinct species is the lack of ______.

A. both the well-preserved DNA and a surrogate mother

B. both the habitat to live in and the well-preserved DNA

C. both the well-preserved DNA and plants to live on

D. both the habitat to live in and plants to live on

4.In the author’s opinion, it is possible that ______.

A. all the extinct species may be cloned

B. extinct species may be cloned and easily survive

C. a gaur can have a monkey as a surrogate mother

D. some extinct species may be cloned, but not survive

高二英语阅读理解困难题查看答案及解析

Have you seen Jurassic Park? In this film, scientists use DNA kept for tens of millions of years to clone dinosaurs. They find trouble, however, when they realize that the cloned creatures are smarter and more dangerous than expected. That’s nothing more than a fiction.

But could we really clone endangered animals?

To date, the most successful attempt to do so was the cloning of a gaur, a rare ox-like animal from southeast Asia. Scientists used a cow to bring the cloned baby gaur, named Noah. Two days after birth, however, Noah died from a common bacterial infection. Other endangered species that may be cloned include the African bongo antelope (邦戈羚羊), the Sumatran tiger, the cheetah (猎豹), and the giant panda.     Next, could we really clone extinct animals?

In theory? Yes. To do this, you need a well-kept source of DNA from the extinct animals such as wool mammoth (毛象), Tasmanian tiger, or even dinosaur, and a closely related species, still living, which could serve as a surrogate mother.

In reality? Probably not. On the one hand, it’s not likely that extinct animals’ DNA could survive undamaged for such a long time. Cloning extinct animals as wool mammoth, Tasmanian tiger, or dinosaur is much more difficult due to the lack of properly well-preserved DNA. On the other hand, for example, a gaur can have a cow as a surrogate mother, definitely not a monkey. But what about an extinct animals as unique as the panda? What species could possibly serve as a surrogate mother?

Cloning presents many exciting possibilities. However, even if extinct animals are brought back, they could not survive in today’s world. Not only do most extinct animals have no habitat to love in, but the other plants and animals they depended on for food may also be gone as well.

1. It can be learned from the text that ________.

A. scientists have cloned the African bongo antelope

B. both the cheetah and the giant panda live in Asia

C. the gaur lives in Asia and is endangered

D. the gaur is an extinct species

2. The underlined words “a surrogate mother” probably refer to a female who -----

A. contributes its eggs to another female   B. gives birth to a baby for another female

C. gives birth to a baby of its own        D. cannot give birth to a baby

3. The difficulty in cloning an extinct species is the lack of ______.

A. both the well-preserved DNA and plants to live on

B. both the habitat to live in and the well-preserved DNA

C. both habitat to live in and plants to live on

D. both the well-preserved DNA and a surrogate mother

4. In the author’s opinion, it is possible that ______.

A. some extinct species may be cloned, but not survive

B. extinct species may be cloned and easily survive

C. a gaur can have a monkey as a surrogate mother

D. all the extinct species may be cloned

5．Today , have scientists  cloned  dinosaus?

A .Yes    B .No    C .A lot  D.Only one.

高二英语阅读理解简单题查看答案及解析

Have you seen Jurassic Park? In this film, scientists use DNA kept for tens of millions of years to clone dinosaurs. They find trouble, however, when they realize that the cloned creatures are smarter and more dangerous than expected. That’s nothing more than a fiction.

But could we really clone endangered animals?

To date, the most successful attempt to do so was the cloning of a gaur, a rare ox-like animal from southeast Asia. Scientists used a cow to bring the cloned baby gaur, named Noah. Two days after birth, however, Noah died from a common bacterial infection. Other endangered species that may be cloned include the African bongo antelope (邦戈羚羊), the Sumatran tiger, the cheetah (猎豹), and the giant panda. Next, could we really clone extinct animals?

In theory? Yes. To do this, you need a well-kept source of DNA from the extinct animals such as wool mammoth (毛象), Tasmanian tiger, or even dinosaur, and a closely related species, still living, which could serve as a surrogate mother.

In reality? Probably not. On the one hand, it’s not likely that extinct animals’ DNA could survive undamaged for such a long time. Cloning extinct animals as wool mammoth, Tasmanian tiger, or dinosaur is much more difficult due to the lack of properly well-preserved DNA. On the other hand, for example, a gaur can have a cow as a surrogate mother, definitely not a monkey. But what about an extinct animal as unique as the panda? What species could possibly serve as a surrogate mother?

Cloning presents many exciting possibilities. However, even if extinct animals are brought back, they could not survive in today’s world. Not only do most extinct animals have no habitat to live in, but the other plants and animals they depended on for food may also be gone as well.

1. It can be learned from the passage that ________.

A. scientists have cloned the African bongo antelope

B. both the cheetah and the giant panda live in Asia

C. the gaur lives in Asia and is endangered

D. the gaur is an extinct species

2.The underlined words “a surrogate mother” probably refer to a female who __________.

A. contributes its eggs to another female

B. gives birth to a baby for another female

C. gives birth to a baby of its own

D. cannot give birth to a baby

3.The difficulty in cloning an extinct species is the lack of ______.

A. both the well-preserved DNA and plants to live on

B. both the habitat to live in and the well-preserved DNA

C. both habitat to live in and plants to live on

D. both the well-preserved DNA and a surrogate mother

4. In the author’s opinion, it is possible that ______.

A. some extinct species may be cloned, but not survive　　

B. extinct species may be cloned and easily survive

C. a gaur can have a monkey as a surrogate mother

D. all the extinct species may be cloned

5.Which of the following statements is true according the passage?

A. Jurassic Park is a cloned animal.

B. The cloned creatures are the same as the real one.

C. We could clone extinct animals in reality.

D. We could clone extinct animals in theory.

高二英语阅读理解中等难度题查看答案及解析