23.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
. A.spaceship B.bus C.plane D.subway train (2)ET3 travels at the very high speed because
. 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
. 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
45.【話題呈現】 本單元的話題是談論將來的生活和工作的意向.要求學生用be going to do的形式談論各自長大后打算干什么以及打算怎樣實現目標.短期計劃是學會制定新年目標,并和同學們進行交流. 【佳句薈萃】 ①I want to be a basketball player when I grow up. ②I'm going to practice basketball every day. ③I'm going to keep on writing stories. ④My parents want me to be a doctor, but I'm not sure about that. ⑤I'm going to write stories and send them to magazines and newspapers. ⑥I'm going to move to Shanghai. ⑦I'm going to start when I finish high school. ⑧Sometimes the resolutions may be too difficult to keep. ⑨The first resolution is about my own personal improvement. ⑩After I finish high school, I'm going to go to university. 【寫作任務】 請你根據以下內容提示,以"My Dream"為題,寫一篇90詞左右的短文. (1)你的夢想是成為一名作家,因為你非常熱愛寫作.當你得知莫言獲得了諾貝爾文學獎(Nobel Prize in Literature)后,感到十分興奮. (2)為了實現這個夢想,你決定從現在做起:多讀文學名著,向著名作家學習;給報紙、雜志寫文章;高中畢業(yè)后努力上北京大學,學習西方文化. .