Some people asked me how I could suggest the expenses of billions of dollars for a voyage to Mars, at a time when many children on this Earth are starving to death. I know that they do not expect an answer such as “ Oh, I did not know that there are children dying from hunger, but from now on I will stop any kind of space research until mankind has solved that problem! ”In fact, I have known of this long before.
But I firmly believe that by working for the space program we can make some contributions to the relief and eventual solution of such serious problems as poverty and hunger on the Earth. Two basic factors causing the poverty and hunger problems are the production of food and the distribution (分布) of food. In fact, large areas of land could be used far better if efficient methods of farming, fertilizer use, weather forecasting, field selection, planting, crop surveys, harvest planning and so on were applied. The best tool for the improvement of all these methods undoubtedly, is the artificial Earth satellite. Circling the globe at a high altitude, it can screen wide areas of land within a short time; it can observe and measure a large variety of factors indicating the status and condition of crops, soil, droughts, rainfall, snow cover, etc.
Besides, in the modern society, there is a continuing great need for new basic knowledge in the science if we wish to improve the conditions of human life on the Earth. We need more knowledge in physics and chemistry, in biology and physiology, and particularly in medicine to cope with all these problems which threaten man’s life: hunger, disease, overpopulation, pollution of water and the environment. In a way, the space age not only holds out a mirror in which we can see ourselves, it also provides us with the technologies.
1.The passage is mainly discussing about .
A.whether the children’s dying from hunger is the major problem
B.whether it is worth spending much money on the space research
C.whether the author’s suggestion has been taken into serious consideration
D.whether there is an effective way to avoid the global starvation
2.According to the author, what plays an important part in dealing with poverty and hunger?
A.Government support. B.Methods of farming.
C.Food supply. D.Modern technology.
3.The second paragraph is mainly developed by .
A.making comparison B.giving explanation
C.offering advice D.giving examples
4.From the last paragraph, we can infer that .
A.technologies can help to improve our living quality
B.more basic knowledge is required to be learned
C.we can live a more peaceful and happier life
D.there are different views on the space age
What do Tom Sawyer and Jumping Frogs have in common? Stories about both of them were created by one man: Mark Twain. When Twain was 4, his family moved to Hannibal, Missouri, lying on the west bank of the Mississippi. Twain grew up there and was attracted greatly with life along the river--the steamboats, the big wooden boats, and the people who worked on them.
The Celebrated Jumping Frog of Calaveras County is one of Twain's best-loved short stories, and The Adventures of Tom Sawyer is one of his most famous novels. Both these works are celebrated by events held during National Tom Sawyer Days. There's also a fence-painting competition to see who can paint the fastest. The idea for this competition comes from a scene in Tom Sawyer, in which Tom has been told to paint the fence in front of the house he lives in. It's a beautiful day, and he would rather be doing anything else. As his friends walk by, he persuades them to paint with him for fun, and they all join in the "fun". By the end of the day, the fence has three coats of paint!
Although the story of Tom Sawyer is not true, it's based on fact. If you go to Hannibal, you'll see the white fence, which still stands at Twain's boyhood home.
1.National Tom Sawyer Days is ______.
A.a short story B.a great novel C.a celebration D.a competition
2.The fence-painting competition comes from _____.
A.Mark Twain's suggestion B.a story in Jumping Frog
C.the life of people in boats D.a scene in Tom Sawyer
3.From the white fence at Twain’s boyhood home, we know that ________.
A.the story of Tom Sawyer is based partly on Twain’s experiences.
B.the story of Tom Sawyer is based totally on Twain’s imagination
C.Twain’s old house is painted by the fence painting competitors
D.Twain’s old house is visited by people from all over the country
Mark Twain was a great writer. He was born in 1835 in the USA. He was also a famous speaker. He was famous for his sense of humour. Many people liked to listen to his talk because he liked to tell some interesting stories to make people laugh all the time.
One day, Mark Twain was going to a small town because of his writing. Before he was going to leave, one of his friends said to him that there were always a lot of mosquitoes in the town and told him that he'd better not go there. Mark Twain waved his hands and said, "It doesn't matter. The mosquitoes are no relatives of mine. I don't think they will come to visit me. "
After he arrived at the town, Mark Twain stayed in a small hotel near the station. He went into his room, but when he was just about to have a rest, quite a few mosquitoes flew around him. The waiters felt very sorry about that. "I'm very sorry, Mr Mark Twain. There are too many mosquitoes in our town," one of them said to him.
Mark Twain, however, made a joke, saying to the waiter, "The mosquitoes are very clever. They know my room number. They didn't come into the wrong room. " What he said made all the people present laugh heartily.
But that night Mark Twain slept well. Do you know why? That was because all the waiters in the hotel were driving the mosquitoes away for him during the whole night.
1.Why did many people like to listen to Mark Twain's talk?
A.Because he was a great writer.
B.Because he liked to anyone.
C.Because of his sense of humour.
D.Because he wrote good novels.
2.The waiters felt sorry because _____.
A.they did something wrong to Mark Twain
B.their hotel was too small
C.the room was not very clean
D.there were quite a few mosquitoes in Mark Twain's room
3.All the people present laughed heartily because ____.
A.the mosquitoes were very clever and they didn't come into the wrong room
B.the mosquitoes knew Mark Twain's room number
C.Mark Twain gave the waiters some nice presents
D.Mark Twain made a joke.
阅读下面短文，根据其内容写一篇60词左右的内容概要。
Artificial intelligence(AI)teachers can provide customized teaching for students to meet their unique requirements through analyzing data and deep learning.In the future, they may replace human teachers for basic teaching tasks.Since some students may find it and put new power into traditional teaching patterns.An educational system providing customized teaching centered on students represents the future trend of AI education.
China's AI education has developed rapidly in recent years with the rise of several thousand relevant companies.Currently,AI teachers are able to help students leamn pronunciation,analyze their condition,guide them to learn independently,and even grade writing assignments. Some foreign AI educational systems have been introduced into several domestic schools and have worked well on trial.
However,the promotion of AI education is still facing several difficulties in practice such as low technological levels,inadequacy of data and lack of funds.AI education still depends largely on human teachers' work.Most importantly,it conflicts with current educational patterns because the courses developed by foreign countries are not suitable for Chinese exam-oriented education.Teachers may also find it hard to change their original roles in classrooms since easing control on classes may make them seem irresponsible.These problems need to be handled before the mass promotion of Al education.
With AI teachers,the original teacher-centered classes will be transformed into student-centered ones where teachers only organize the class and provide guidance.Since teachers are supposed to not only equip students with knowledge but also shape their values and help them develop creative abilities,AI teachers will not replace human teachers but will only pose higher requirements of teaching.A combination of AI teachers and human ones can create the best future for Al education.
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假定你是李华。你正在计划一个充实而有意义的暑假，刚好在网上看到志愿组织Kululekus English Teaching Program的志愿者招募广告。请你写一封邮件申请参加该志愿项目，内容包括：
1.相关能力或经验介绍；
2.计划服务时长。
Kululekus English Teaching program in Mozambique(莫桑比克) aims to provide the local schools with support in a variety of ways, helping to teach children English, Maths and other subjects, at the same time transferring skills and sharing cultural perspectives. Our volunteers work together with the teachers of the respective school as well as the children between the ages of 6 and 15 years.
注意：1. 词数80左右；
2. 可以适当增加细节，以使行文连贯。
Dear Sir/Madam,
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默写句子。
1.看到没有人留意我们，我把圣诞礼物放下然后离开了。（请使用现在分词）
2.打扮成圣诞老人，在六个可爱的小女孩陪伴下，他骑着一头叫Jumbo的小象走在城市的大街上。（请使用过去分词）
3.Linda一下子站了起来，眼睛冒出愤怒的火光。（请使用独立主格结构）
