Travel in the Future These days，if you want to travel from New York to Beijing，the flight takes about 16 hours．You also have to wait at the airport，and sometimes you have to transfer （換乘） onto a different airplane．If you add all of that extra time，the trip takes at least 20 hours．But in the future，the trip from New York to Beijing might only take two hours．
Right now，a company is developing something called ET3，which stands for" evacuated tube （真空管） transport technology"．Here's how it works．A tube goes all the way from New York to Beijing．The tube is only a few meters wide．Capsules（艙）move through the tube．Six people can sit in one capsule．The capsules use electricity instead of oil．For international travel，the capsules can travel at about 6，500 kilometers per hour．That's much faster than airplanes-most modern airplanes usually only fly at about 800 kilometers per hour．
So how is this possible？How can these capsules travel so fast？The answer is that there is no air inside the tube．When airplanes fly，they have to move through air．The air slows the airplanes down．Because there isn't any air in the ET3 tubes，the capsules are able to move at a very high speed．Also，the capsules are quite light．Each only weighs 183 kilograms．
There are other advantages to ET3．Because it uses electricity，it's quite clean．Also，it's a lot quieter than airplanes and cars．Finally，ET3 tubes and capsules don't require very much building materials．
Of course，ET3 doesn't come into use yet．The technology is still being developed．Developers still have to solve a lot of problems．The biggest problem is that right now ET3 would be far too expensive．In order to make ET3 cheaper，we will need much better technology．
It's exciting to think of how ET3 will change the travel in the future．Who knows？Maybe someday you'll be able to have lunch in New York and dinner in Beijing
（1）According to the passage，an ET3 looks more like a DD．
A．spaceship
B．bus
C．plane
D．subway train
（2）ET3 travels at the very high speed because CC．
A．it is powered by electricity and oil
B．it is much lighter than an airplane
C．it moves through a tube without air
D．it is made up of fewer capsules
（3）From the passage，the writer expects that DD．
A．modern technology will be used in airplanes
B．ET3 will take the place of airplanes some day
C．less money will be spent for passengers on ET3
D．ET3 will change the travel in the future greatly
【答案】D；C；D
【解答】
【點評】
聲明：本試題解析著作權屬菁優網所有，未經書面同意，不得復制發布。
發布：2024/4/20 14:35:0組卷：36引用：3難度：0.5
相似題
-
1．Dear Dr Lee，
The days of mine are not all sunny.As a middle school student，I have many problems.On the one hand，I am under great pressure（壓力） in my studies，I need to take the exams every month.If I fall behind other students，I will feel that I am not doing well.I always want to be the best，but things can't go on my way.On the other hand，I don't want to talk to my parents about my problems.If they ask me questions，I will answer them with few words.I think they won't understand me.And my body grows fast，changes happen in me，I can't control my emotion（情緒）.What should I do？
LauraDear Laura，
It's normal to have these problems.But don't worry.The life is not always wonderful.Everybody has growing pains（痛苦） on their way to the growth.But the time is fair（公平的），gains（收獲） are always with pains.Growing pains seem full of knowledge and experience.Although there's so much homework，so many exams，and so many different ideas between the parents and you，you will learn how to make your dreams come true by working hard and how to understand each other by talking with your parents.Growing pains worry you a lot but they will give you power（力量） and confidence（自信） at the same time.They can help you to be successful and make more friends as well.Successes and friendships can make you happy and enjoyable.Both pains and gains can make your life more colorful.So I think what you need to do is learning to adjust（調節） yourself and get used to these changes.You need to open your heart and have less pressure.
Dr Lee
（1）Which is NOT Laura's growing pains according to the passage？
A．Be under great pressure in her study.
B．Can't always be the best.
C．Don't talk to her parents.
D．Grow fast.
（2）Who does Laura ask for help？
A．Her friend.
B．Her classmate.
C．Her parent.
D．Dr Lee.
（3）Which is NOT Dr Lee's opinion？
A．We can get much knowledge and experience from growing pains.
B．We have growing pains and gains in our lives.
C．It's special to have growing pains.
D．Success can make you happy and enjoyable.
（4）Which is NOT the gain according to the passage？
A．Homework.
B．Power.
C．Confidence.
D．Happiness.
（5）What can we learn from the passage？
A．Gains are more important than pains.
B．The life was always wonderful.
C．Both gains and pains make our life colorful.
D．Growing pains are not common in our life.發布：2025/1/30 8:0:1組卷：8引用：1難度：0.3 -
2．Dear Laura，
Thanks for your message.Yes，I'm having a great time on my exchange program in France.I was a bit nervous before I arrived here，but there was no reason to be.My host family is really nice.They go out of their way to make me feel at home.The grandmother has a teenage granddaughter about my age who is rally kind.She always talks to me in French to help me practice.And you wouldn't believe how quickly my French has improved!I'm very comfortable speaking French now.
Although I still make lots of mistakes，it doesn't worry me as it used to.
My biggest challenge is learning how to behave at the dinner table As you can imagine，things are really different from the way they are at home.For example，you shouldn't put your bread on your plate.You are supposed to put it on the table!I thought that was pretty strange at first，but now I'm used to it.You shouldn't eat anything with your hands except bred，not even fruit!You have to cut it up and eat it with a fork.Another thing is that it is very impolite to say you're full If you don't want any more food，you should just say， "It was delicious.".Also，you shouldn't put your elbow on the table I have to say that I find it difficult to remember everything，but I'm gradually getting used to it.I don't find French customs so strange any more.
Dear Laura，I'll write again soon and tell you more about my life in France.Hope you are having a good school year.
Yours，
Lin Yue
（1）What message does Laura probably leave for Lin Yue？
A．Are you having a good time on your exchange program in France？
B．Has your French improved a lot in France？
C．What do you find interesting in France？
D．Who do you live with in France？
（2）The underlined phrase "feel at home" most probably means "feel".
A．strange
B．relaxed
C．powerful
D．frightened
（3）Lin Yue feelsspeaking French now.
A．more worried about
B．unsure about
C．more confident of
D．proud of
（4）Which of the following is acceptable in France？
A．Saying you're full when you don't want any more food.
B．Putting your elbows on the table.
C．Putting your bread on the table.
D．Eating fruit with your hands.
（5）Laura is most probably a（n）.
A．doctor
B．cook
C．architect
D．student發布：2025/1/30 8:0:1組卷：6引用：1難度：0.2 -
3．
（1）Jeff reads books forDear Jeff，
I'm glad to hear from you.I'm in the swimming club.I go there on Tuesday and Thursday.In the evening，I practice the guitar for an hour.I hardly ever watch TV because I think it's boring.I like tennis best.I always play tennis with my sister on Saturday.I sometimes go shopping on Sunday.
Yours，
LauraDear Laura，
Let me tell you how I spend my free time.I like playing basketball and volleyball.I join the sports club.I go there three times a week.In the evening，I watch TV for an hour.After that，I read books for half an hour.I often go swimming on Saturday.On Sunday，I usually go to the museum with my friend.I wonder what you like to do in your free time.Please write to me.
Yours，
Jeffin the evening.
A．an hour
B．half an hour
C．twenty minutes
D．fifteen minutes
（2）Laura goes to the swimming club.
A．once a month
B．twice a month
C．twice a week
D．three times a week
（3）Laura hardly ever watches TV because.
A．her TV doesn't work
B．she thinks it's boring
C．she doesn't have free time
D．her parents don't want her to do that發布：2025/1/30 8:0:1組卷：3引用：2難度：0.7