Today, the forests have almost gone. People must ________ down too many trees.
A. stop to cut B. stop from cutting
C. be stopped to cut D. be stopped from cutting
高一英语单项填空中等难度题
Today, the forests have almost gone. People must ________ down too many trees.
A. stop to cut B. stop from cutting
C. be stopped to cut D. be stopped from cutting
高一英语单项填空中等难度题查看答案及解析
In 1620, about half the USA was covered by forests． Today the forests have almost gone． A lot of good land has gone with them, leaving only sand． China doesn't want to copy the USA's example． We're planting more and more trees． We've built the " Great Green Wall" of trees across northern part of our country．The Great Green Wall is 7,000 kilometres long, and between 400 and 1,700 kilometres wide． It will stop the wind from blowing the earth away． It will stop the sand from moving towards the rich farmland in the south． More "Great Green Walls" are needed． Trees must be grown all over the world． Great Green Walls will make the world better．
1.In 1620, about ______ the USA was covered by forests．
A．a third B．half C．two thirds D．a fourth
2.A lot of good land has gone with ______．
A．sand B．water C．wind D．forests
3.The Great Green Wall in China is ______ long．
A．7,000 kilometers B．1,700 kilometers
C ．7,000 meters D．400 kilometers
4.Trees must be grown in ______.
A．China B．the USA
C．some countries D．every part of the world
5._____ will make the world better．
A．The Great Wall B．Tall buildings
C．Great Green Walls D．Flowers and grass
高一英语阅读理解中等难度题查看答案及解析
Until today some black people_________ a stage _________ they have almost no rights at all.
A. reached ; which B. have reached ; where
C. reached ; where D. had reached ; in which
高一英语单项填空简单题查看答案及解析
There is no light in the room. They must have gone to the lecture.__________?
A. didn’t they B. haven’t they C. don’t they D. mustn’t they
高一英语单项填空简单题查看答案及解析
—He has passed the driving test finally!
—Oh! He must have __________ a lot of difficulties!
A. gone through B. cared about
C. joined in D. gave in
高一英语单项填空中等难度题查看答案及解析
It’s time that you __________ the whole book.
| A．must go over | B．can go over | C．went over | D．have gone over |
高一英语单项填空简单题查看答案及解析
It’s time that you __________ the whole book.
A．must go over B．can go over C．went over D．have gone over
高一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 (移植). However, it’s difficult to get a suitable heart donation, and even if a patient survives the wait, his or her body often rejects (排斥) 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 (血管), chambers (心室) 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 (拇指). And, although it can contract (收缩) like a muscle, it cannot pump out blood like a real one. At present, the heart prototype (样品) 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 (脂肪组织) into human heart tissue with stem cell (干细胞) 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 (个性化的) 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 is the 3D-printed heart important?
A.It will be used on a patient.
B.It is the first 3D-printed heart.
C.It will replace a heart donation.
D.It has a complete heart structure.
2.What problem do 3D-printed hearts have?
A.They cost too much. B.They are too small.
C.They can’t contract. D.They are hard to produce.
3.Why would there be less risk of organ rejection with the 3D-printed heart?
A.It would be made with stem cell technology.
B.It would be made from human fat tissue.
C.It would come from a patient’s body.
D.It would be printed according to the patient’s condition.
4.What attitude does Tal Dvir hold toward the future of 3D printing of organs?
A.Confident. B.Doubtful.
C.Worried. D.Confused.
高一英语阅读理解困难题查看答案及解析
In urban China，where English is almost the official second language，many Chinese people have learned to speak as professionally as native speakers. However they may have an accent and make a few minor grammatical mistakes.Years ago many people used a certain Chinese-English dictionary or a series of textbooks and accepted their teachings. Consequently，language learners developed a peculiar vocabulary. Some people call these word choices “Chinglish”. The words are not incorrect—native speakers still understand them—but they stand in the way of using standard English. Here are some common examples, both from written and spoken English:
Clever (adj.): Native speakers usually say “smart” instead. “Smart” is a broader and more common word. “Clever” suggests an ability to think your way out of a specific problem or take advantage of a specific situation. Being smart serves you for life.
Examination(n.): Use “exam”, the short form of it, or the more common word, “test”. (The verb for all three words is “take”.) Another word you may hear is “quiz”. It means a short and relatively unimportant test that the teacher often gives as a surprise.
Film: This is largely a technical word. The common term is “movie”. (Native speakers often say “short film for the movie”.)
House (n.): a stand-alone building with its own street entrance that is home to one family. A home in a building full of families is an “apartment” or a “flat”. When in doubt, just say “home”.
Puzzled (adj.): We use this word to describe mild reactions to difficult math problems, and not even very often for this purpose (we say “I’m stumped” or “I have no idea” instead). But when we’re addressing a life issue such as whether to pursue (从事) a graduate education or go straight to work, we say “confused”. This is a stronger word as well as a more common one.
49. The writer wrote this passage to______.
A. prove there are so many Chinese people learning English in a wrong way
B. teach us to choose correct and exact English words to express ourselves
C. tell people that if we want to speak English as well as native speakers we must memorize as many English words as possible
D. explain what Chinglish is
50. According to the passage, which of the following is more common?
A. Would you like to go to the film tonight?
B. He will take an examination next week.
C. Tom is cleverer than his brother.
D. He felt confused whether he would go abroad for further study.
51. This passage suggests that______.
A. native speakers say “I’m puzzled with this math problem.” more often used than they say “I’m stumped with the math problem.”
B. the word “home” is much often used than the word “house” in spoken and written English
C. the word “examination” is more common than its short form“exam”
D. we can say “do a quiz”
52. We can infer from the passage that______.
A. native speakers can understand “Chinglish”
B. saying “take a test” is more common
C. to English learners, developing more English vocabulary doesn’t mean speaking good English
D. it’s easy to learn English words well
高一英语阅读理解简单题查看答案及解析
To most people of Norway(挪威), skiing is the best way to have fun in winter. Almost everyone can ski. Children learn to ski soon after they learn to walk. Long long ago in Norway, there were no buses, trains or cars. The people had to find a way to walk over the deep snow. Skis were the right answer! And Norwegians have been skiing ever since.
Today most Norwegians ski just for fun. Most families, mothers, fathers and children, may go together on a ski trip across the snowy countryside. Some of Norwegian young men and women are among the best skiers in the world. They have won many prizes.
Although the Norwegians love winter, the people of Norway are happy to see summer come. They enjoy the out-of-doors at any time of the year. In summer they swim and sunbathe near the oceans. Some people go hiking and mountain climbing. Sail-boats glide(滑行) down the sea during the warm sunny summer months.
The Norwegians, like people everywhere, find many ways to have a good time. During the long winter they also enjoy films. They like to read and enjoy books from the libraries no matter what the season is. Family life is very important to the people of Norway.
1.In the past, Norwegians skied for .
A. having fun B. winning prizes
C. being skiers D. walking over the deep snow
2.Norwegians learn to ski .
A. before they go to primary school B. soon after they learn to walk
C. when they go to middle school D. after they go to college
3.Which sentence is right?
A. Norwegians also like indoor activities
B. Norwegians like winter, but they don’t like summer
C. Norwegians ski just for prizes now
D. Norwegians don’t think family life is very important
4.The writer mainly tells us about .
A. skiing B. the life of Norwegians
C. outdoor activities D. indoor activities
高一英语阅读理解中等难度题查看答案及解析