Scientists have made a major ________ in the treatment of cancer.
A. barrier B. breakthrough
C. companion D. concern
高二英语单项填空简单题
Scientists have made a major ________ in the treatment of cancer.
A. barrier B. breakthrough
C. companion D. concern
高二英语单项填空简单题查看答案及解析
In the past few decades, scientists have made a great ________ in the treatment of cancer.
A. breakout B. breakdown C. breakup D. breakthrough
高二英语单项填空中等难度题查看答案及解析
Scientists have achieved a major ___ in the search for a cure for cancer, ____ is good news for those who suffer from cancer.
A．breakthrough; what B．breakdown; which
C．breakup; that D．breakthrough; which
高二英语单项填空简单题查看答案及解析
The scientists have made an exhaustive study of the virus _______ many people have been inflected.
A. to which B. in which C. with which D. for which
高二英语单项填空中等难度题查看答案及解析
根据括号里的中英文提示用正确形式填空
1.Scientists have made many discoveries simply out of _______. (curious)
2.The new boss has tried to give the restaurant a friendlier _____.（氛围）
3.These scientists ______(puzzle) about how to solve the problems these years.
4.This room _______(measure) 5meters across and 8 meters in length.
5.As for his performance, he is a ____(失败者); but he succeeded as a singer.
6.His writing is good but his _____(speak) English is rather bad.
7.More than one student _____ (be) interested in such games.
8.I waited for my friends at the _______(入口) to the park.
9._______ (expose) to different cultures does a lot of good to children.
10.No one can get the ______ (admit) to the museum without a ticket.
高二英语语法填空简单题查看答案及解析
根据首字母和汉语意思完成单词，使句意完整。
1.Over the past years, scientists have made many great b___________ in science and technology.
2.Tourists are not allowed to take photographs here without p_________.
3.My father coughs frequently as a c___________ of smoking.
4.Some people have wrong a________ towards people with disabilities.
5.In society, some greedy businessmen hide from their r___________ and only worry about money.
6.In general, girls are more __________ （敏感的）to what comments other people will make on them.
7.He is such a _________ (可信赖的) young man as everyone can depend on.
8.It’s really annoying to be _________(背叛) by your close friend.
9.He is so determined a boy that he must have enough courage to _______ (克服)the difficulty.
10.In her __________ (判断),it was a wrong thing to give children so much pocket money.
高二英语单词拼写简单题查看答案及解析
A team of American scientists has found a treatment to protect humans from the deadly H5N1 flu virus, ________ brings great ________ to the world.
A. that; appearance B. which; relief C. which; advantage D. that; profit
高二英语单项填空简单题查看答案及解析
Experts have pointed out that the _____ of severe punishments plays a major role in the growing food safety problem.
A. attendance B. absence C. presence D. evidence
高二英语单项填空中等难度题查看答案及解析
Heart disease is one of the major killers in the world today. Many who suffer from it must have heart transplants. However, it’s difficult to get a suitable heart donation, and even if a patient survives the wait, his or her body often rejects the heart.
But there is now new hope for sufferers of heart disease. According to a study published in the journal Advanced Science, researchers from Israel’s Tel Aviv University printed a 3D human heart on April 15.
“This is the first time anyone anywhere has successfully engineered and printed an entire heart,” professor Tal Dvir told CNN. Unlike the previous 3D-printed heart structure, the new heart is complete with cells, blood vessels, chambers and other structures a heart needs to function normally. But scientists still have more to figure out before the 3D-printed heart can be fitted into the body. For one thing, the experimental heart is only the size of a thumb. And, although it can contract like a muscle, it cannot pump out blood like a real one. At present, the heart prototype is like a tiny airplane that has all of the right parts, but can’t fly.
However, the development is still regarded as a major breakthrough in medicine.
In the experiment, the researchers turned human fat tissue into human heart tissue with stem cell technology. The tissue was then turned into “bio-ink” for a 3D printer to ensure that tissue in the heart came from the patients themselves. So ideally, if it were to be placed in the body of someone in need of a transplant, there would be less risk of organ rejection. “Patients will no longer have to wait for transplants or take medications to prevent their rejection,” researchers told USA Today. “Instead, the needed heart will be printed, fully personalized for every patient.”
But the scientists think that 3D printing can be used to create other human organs. They foresee a time when the 3D printing of organs will be an everyday medical practice. “Maybe, in 10 years, there will be organ printers in the finest hospitals around the world and these procedures will be conducted routinely,” Dvir said.
1.Why do scientists have to do further research before fitting the 3D-printed heart into the body?
A.Because the heart is incomplete.
B.Because the heart can’t pump out blood.
C.Because the heart is an airplane that can’t fly.
D.Because the heart can’t contract like a muscle.
2.What can we infer from the last two paragraphs?
A.The needed heart will be printed to meet every patient’s need.
B.The 3D printing of organs will be an unusual medical practice.
C.Dvir has a negative attitude towards the future of organ printers.
D.Patients will need medicines to stop their rejection for their heart transplant.
3.What can serve as the best title for the passage?
A.Organ printers in the hospitals.
B.How to get a suitable heart donation.
C.Heart disease: one of the major killers.
D.A 3D-printed heart: new hope for heart disease sufferers.
高二英语阅读理解简单题查看答案及解析
根据所给词的正确形式填空：
1.A __________(major) of women have found jobs in the city since the government took effective measures to protect their rights.
2.The teacher told him to clean the blackboard for a week as his ___________ (punish).
3.Our products will sell at _________(reason) prices in markets throughout the country.
4.The song of Gangnam Style from South Korea enjoys great __________ (popular) all over the world.
5.I have no _________ (object) to their plan.
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