The only problem was ______ we kept getting l...

The only problem was ______ we kept getting lost! But people in Tianjin were very friendly and helpful.

A.that B.why C.whether D.what

高三英语单项填空困难题查看答案及解析

The only problem was ______ we kept getting lost! But people in Tianjin are very friendly and helpful.

A. why B. whether

C. that D. how

高三英语单项填空中等难度题查看答案及解析

We do have trained people, but the problem is how to organize them, and ____their enthusiasm.

A. raise     B. arouse  C. rise        D. arise

高三英语单项填空中等难度题查看答案及解析

Blood is important to support our lives. But for now, the only way we can get more of it is through donation. And donated blood has its own problems. First of all, certain blood types are extremely rare. Type O negative blood (O-), for example, only 　　 1.(exist) in 7 percent of people, according to Sunday Times. There are fewer 　　 2.(donate) and therefore there isn’t enough of this type of blood for everybody who needs it. In addition, donated blood comes from various people, which means that it has to 　 3.　 (examine) carefully for diseases such as HIV to make sure that it’s safe for transfusion(输血).

This is__4. scientists all over the world have been trying to make blood in labs. And now, someone finally succeeded—Marc Turner at the Scottish National Blood Transfusion Service has produced blood fit for transfusion, reported Forbes. Different from many ____5. scientists, who have tried to make blood by mixing up different ingredients together, Turner chose to grow blood 　　　 6.(direct) from human stem cells. He developed 　　 7. special technique to create a chemical environment similar to that in our bone marrow (骨髓). This environment encourages stem cells to develop fully 　　 8. red blood cell.

According to Turner, his artificial blood is 　　 9. (likely) to contain disease viruses or produce side effects. And the best part is that 　　 10. he managed to produce was type O- blood. Not only is it a rare blood type, it’s also a universal type, which means it can be transfused into any patient.

高三英语语法填空中等难度题查看答案及解析

“Stop thief! Stop thief!” But the thief was ________ by the crowd and we lost sight of it.

A. drowned            B. swallowed     C. caught            D. stopped

高三英语单项填空中等难度题查看答案及解析

The heat was intense as we moved down the long corridor. Not only was it a difficult blaze， but the July heat made things even worse as we struggled to get the best of the flames. As we finally made the turn into the apartment where the fire had started, the words of the young mother outside screamed in my brain, ‘Please help! My baby is in there!’

We moved into the bedroom and I started looking in the usual spots where a child might seek refuge: under the bed, in the corners. As I groped my way through the thick smoke, I suddenly fell forward, tripping over something on the floor. It was the child. Ripping off my mask to give mouth-to-mouth resuscitation, I grabbed the child and raced for the stairs. When we reached the waiting Rescue Squad members, I collapsed in a heap in the gutter. The ambulance sped off into the night, its siren wailing. Later that evening, we received word that the child had died in the hospital’s emergency room. Another small life lost in the city.

Why do little children such as that one have to pay the price for the neglect of others? During my career as a fire fighter, I have seen this happen many times. You would think that we would become hard and callous, but we don’t. We mourn each person who dies. What bothers me is that many senseless tragedies could have been prevented. An overwhelming number of deaths in fires can be prevented by just one thing – a smoke detector. It is estimated that fewer than 50 percent of all dwellings in the United States are protected by smoke detectors. Why are so many people ignorant about the need for smoke detectors? Smoke detectors save lives. They are easy to install. Their cost is reasonable, and they offer immediate protection.

People must persuade their communities to provide fire education for everyone. The money spent on fire education reaps a reward that cannot be measured. If you do not think so, then consider your reactions if the child I carried out of that flaming apartment had been a member of your own family. You would probably then be willing to do anything at all to undo that tragedy.

1.The author’s main purpose in the passage is to __________.

A. advertise a new brand of smoke detector.

B. persuade readers to become fire fighters.

C. plead for donations from the public.

D. encourage fire safety measures.

2.In the Section About carrying the child from the building, the author is describing

_________.

A. a scene the author saw in a movie

B. a tragedy in a fire fighter’s family

C. a personal experience

D. a training course in fire education

3.According to this reading, which of the following opinions will the author most

agree with?

A. People have received enough fire education provided by their communities.

B. Many deaths in Fires could have been prevented.

C. The fires in apartments are always caused by smoking.

D. Fire Fighters don’t have sympathy for those who die in fires.

4.The author blames the lack of smoke detectors in households on the reason that________.

A. smoke detectors are too expensive

B. smoke detectors often cannot work properly

C. smoke detectors are difficult to install

D. people are ignorant about the need for smoke detectors.

高三英语阅读理解困难题查看答案及解析

单词拼写

1.Usually we can read some a（逸事）_____of famous people in the magazines.

2.He was the only w________（目击者）to that accident.

3.Because of the war, his family had to f_______（逃离） to another country.

4.The river looks very deep. Do you know the d___________ of it.

5.The company will have its a______________ celebration this Saturday.

6.Without t_______（舌头）, we can’t speak, nor can we taste.

7.He was a_______（抛弃） by his cruel parents when born because of his disability

8.The mountains are r____（反射，倒影）in the clear water, forming a pleasant     picture.

9.Whenever I go to the West Lake, I’m always stricken by its b__________.

10.A baby is too young to be a________（意识到） of the dangers around it.

高三英语单词拼写中等难度题查看答案及解析

Humans’ invention of zero was vital for modern mathematics and science, but we’re not the only species to consider “nothing” a number. Parrots and monkeys understand the concept of zero, and now bees have joined the club, too.

Honey bees are known to have some numerical skills such as the ability to count to four, which may come in handy when keeping track of landmarks in their environment. To see whether these abilities extended to understanding zero, researchers trained 10 bees to identify the smaller of two numbers. Across a series of trials, they showed the insects two different pictures displaying a few black shapes on a white background. If the bees flew to the picture with the smaller number of shapes, they were given delicious sugar water, but if they flew toward the larger number, they were punished with bitter-tasting food.

Once the bees had learned to consistently make the correct choice, the researchers gave them a new choice: a white background containing no shapes at all. Even though the bees had never seen an empty picture before, 64% of the time they chose it rather than a picture containing two or three shapes, the authors report today in Science. This suggests that the insects understood that “zero” is less than two or three. And they weren’t just going for the empty picture because it was new and interesting. Another group of bees trained to always choose the larger number tended to pick the nonzero image in this test.

In further experiments, the researchers showed that bees’ understanding of zero was even more complex: for example, they were able to distinguish between one and zero-a challenge even for some other members of the zero club. Advanced numerical abilities like this could give animals an evolutionary advantage, helping them keep track of predators（捕食者）and food sources. And if an insect can display such a thorough grasp of the number zero, write the researchers, then this ability may be more common in the animal kingdom than we think.

1.According to the trials, the researchers have found that bees ________.

A. have the same intelligence as parrots and monkeys

B. can count many numbers after being trained

C. can identify the smaller number quickly

D. understand the concept of zero

2.The researchers trained another group of bees to ________ .

A. confirm the bees are able to identify the smaller number

B. find the big difference between the two groups of bees

C. prove the bees are interested in new things

D. show the bees can be distinguished easily

3.What do the researchers suggest in further experiments?

A. Bees should be trained more.

B. Numerical abilities could help predators find bees.

C. Insects are better at understanding zero than animals.

D. Animals may display a thorough grasp of the number zero.

4.What is the best the title for the text?

A. New Findings About Bees’ Concept of Zero

B. Experients on Bees’ Numerical Skills

C. Complex Trials About the Zero Club

D. A Science Report of the Species of Bees

高三英语阅读理解困难题查看答案及解析

It took us a long time ______Hawaii but we thought the journey was enjoyable.

高三英语单项填空简单题查看答案及解析

One of the tourists ______ from the tour group. That was why the tour guide lost his temper.

A. kept away　　　　　　　　　 　　　　　　　　　 B. broke away　　　　　　　　　 　　　　　　　　　 　　　　　　　　　 C. took away　　　　　　　　　 　　　　　　　　　 　　　　　　　　　 D. gave away　

高三英语单项填空中等难度题查看答案及解析