She took up skating at age 85, made her first movie appearance at age 114, and held a concert in the neighborhood on her 121st birthday.
When it comes to long life, Jeanne Calment is the world’s recordholder. She lived to the ripe old age of 122. So is 122 the upper limit to the human life span(寿命)? If scientists come up with some sort of pill or diet that would slow aging, could we possibly make it to 150-or beyond?
Researchers don’t entirely agree on the answers. “Calment lived to 122, so it wouldn’t surprise me if someone alive today reaches 130 or 135, ”says Jerry Shay at the University of Texas.
Steve Austad at the University of Texas agrees. “People can live much longer than we think, ”he says. “Experts used to say that humans couldn’t live past 110. When Calment blew past that age, they raised the number to 120. So why can’t we go higher? ”
The trouble with guessing how old people can live to be is that it’s all just guessing. “Anyone can make up a number, ”says Rich Miller at the University of Michigan. “Usually the scientist who picks the highest number gets his name in Time magazine. ”
Won’t new anti-aging techniques keep us alive for centuries? Any cure, says Miller, for aging would probably keep most of us kicking until about 120. Researchers are working on treatments that lengthen the life span of mice by 50 percent at most. So, if the average human life span is about 80 years, says Miller, “adding another 50 percent would get you to 120. ”
So what can we conclude from this little disagreement among the researchers? That life span is flexible(有弹性的), but there is a limit, says George Martin of the University of Washington. “We can get flies to live 50 percent longer, ”he says. “But a fly’s never going to live 150 years. ”Of course, if you became a new species (物种), one that ages at a slower speed, that would be a different story, he adds.
Does Martin really believe that humans could evolve (进化)their way to longer life? “It’s pretty cool to think about, ”he says with a smile.
1.What does the story of Jeanne Calment prove to us?
A.People can live to 122.
B.Old people are creative.
C.Women are sporty at 85.
D.Women live longer than men.
2.According to Steve Austad at the University of Texas, ______.
A.the average human life span could be 110
B.scientists cannot find ways to slow aging
C.few people can expect to live to over 150
D.researchers are not sure how long people can live
3.Who would agree that a scientist will become famous if he makes the wildest guess at longevity?
A.Jerry Shay. B.Steve Austad
C.Rich Miller D.George Martin
4.What can we infer from the last three paragraphs?
A.Most of us could be good at sports even at 120.
B.The average human life span cannot be doubled
C.Scientists believe mice are aging at a slower speed than before.
D.New techniques could be used to change flies into a new species
Before a new type of airplane goes into service, every part of it is tested again and again. But there are two tests that are more important than all the others.
The first is called the “tank test”. A modern airplane must fly very high in the sky. Air must be pumped into the plane so that the passengers can breathe. The metal structure (结构) of the plane has to be very strong for this reason. When the plane is filled with air, the air presses against the skin of the plane inside. The pressure (压力) on a small window is like a huge foot that is trying to get out. If a small part of the plane were to fail, the plane would explode in the sky. To test the structure of the plane, the plane is lowered into a huge tank or container of water. Then it is filled with air. The pressure inside the plane is greater than it ever will be when it is high up in the air. Finally, there is an explosion. This does not cause so much damage inside the water tank as it would anywhere else. Engineers can discover which part of the plane has broken. Then that part is made stronger,
The most dangerous test happens when the new plane is going through test flights in the air. The test pilot must find out exactly what happens when the engines (发动机) are all shut off at once. The plane begins to fall like a stone. It is the pilot’s job to find out how he can get control of the plane again. These two tests are examples of how planes are made safe before they ever carry passengers.
1.By doing the “tank test”, the engineers can find out ________.
A.the power of the airplane engines B.the amount of air in the plane
C.the strength of the plane structure D.the pressure inside and outside the plane
2.What will happen to the plane under the “tank test”?
A.It will be tested by pilots. B.It will be broken.
C.It will be made stronger. D.It will be filled with water.
3.According to the text. why are test flights most dangerous?
A.Too much air may get into the plane. B.The plane may explode in the air.
C.The pilot may lose control of the plane. D.The engines may be damaged.
4.What might be the most suitable title for the text?
A.How Airplanes Are Made and Tested B.Two Important Tests on Airplanes
C.The Importance of Flying Safely D.The Danger of Testing Airplanes
It was a warm April day when a big fat envelope came in the mail from the only college I had ever imagined attending. I tore open the packet. My eyes were fixed on the word “congratulations”. I don’t remember ever smiling so wide.
Then I looked at my financial(财政的)package.
The cost of Dream School’s tuition(学费), room and board was around $ 40,000--- an impossible sum! How could I afford to attend? What good reasons did I have to go there when three other fine colleges were offering me free tuition? My other choices were good, solid schools even if they weren’t as famous as my first choice.
In my mind, attending my dream university would be the only way to realize my dream of becoming a world-class writer. My parents understood how I felt. They told me that even though it would be a financial problem, I could go wherever I would be happiest. But as I was always careful with money, I wasn’t sure what to do.
One of the schools that offered me a full ride had an informational dinner one night in the spring. Considering my parents’ financial difficulties, I decided to drive the 45 minutes and attend. At first, all I had planned to do was smile politely, eat free food, listen quietly. But I surprised myself.
At dinner the president of the university talked about the wonderful activities on campus (校园)including guest lectures and social gatherings. He also made it perfectly clear that free food would be offered at all future events. He continued with explanations of professors, class sizes, activities, and sporting events on campus. As he spoke, I began to realize that this school, though not as good as my first choice, might be the best one for me. It seemed small yet with many great programs. It seemed challenging yet caring.
As the president ended his speech, we clapped politely and pushed back our chairs. As I walked out that door, a feeling of comfort washed over me. Looking at the campus that night, I realized that I would be spending the next four years right there.
In all honesty, my university is not as well-known as my “dream”university. However, it turned out to be the right choice of schools for me.
1.How did the author feel when he started to read the letter?
A.He was uncertain which school to go to. B.He was lost in his dream.
C.He was worried about the money. D.He was full of joy.
2.We can learn from the passage that the parents were _________.
A.honest B.supportive C.strict D.decisive
3.In Paragraph 5, “offered me a full ride”can be replaced by “_______”.
A.would pay for transport to the school
B.would show me around the campus
C.would offer free meals at all events
D.would charge me nothing for tuition
4.What does the author mainly want to say?
A.You should consider comfort in your choice of schools.
B.Your second-choice college may actually by your best fit.
C.You should try your best to attend your dream school.
D.Your choice of schools should be based on their fame.
Central Park
Outside among the trees, watch the wildlife—both the human and animal varieties. Call(212) 360-3465 or (212) 360-2726 for daily events and tours.
Central Park stretches from 59th to 110th Sts., and from 5th Ave. to Central Park West.
Empire State Building
This is among the most striking buildings in the city, the nation, even the world. The observation deck (瞭望台) on the 86th floor is open to the general public, offering a wonderful view of the city. On the second floor you'll find the New York Skyride, a simulate helicopter ride over Manhattan.
5th Ave. at 34th St., Midtown: (212) 736-3100
Intrepid Sea-Air-Space Museum
Five blocks west of Time Square, this museum has hundreds of air, deep-sea and space exhibits. Walk the flight deck of the 900-foot-long aircraft carrier Intrepid, see dozens of old and modern aircraft and ride the Intrepid Navy Flight Simulator.
Pier 86, W. 46th St. and 12th Ave.: (212)245-0072
Madison Square Garden
If it's big, it probably happens at the Garden. Check out sporting events, concerts and much more. Tours are available.
7th Ave., btwn. 31st and 33rd Sts., Midtown: (212)465-6741
1.The New York Skyride is for .
A.sightseeing B.flight training
C.model plane sports D.city transportation
2.If a visitor is interested in music, he will probably go to .
A.Central Park B.Empire State Building
C.Intrepid Sea-Air-Space museum D.Madison Square Garden
3.What is the purpose of these texts?
A.To provide information of living in New York.
B.To provide directions of city traffic in New York.
C.To give visitors a guide to New York.
D.To give a brief introduction to the history of New York.
假定你是李华,成功考取了玉溪一中学习。请根据下列提示,用英语给你的笔友Frank写一封电子邮件,谈谈你的处境。
1. 面临的挑战 (新同学、新老师、新课程);
2. 采取了什么方式来适应挑战;
3. 寻求建议。
注意:1.词数100左右;
2.文章开头结尾已给出,不计入总词数;
3.可以适当增加细节,以使行文连贯。
Dear Frank,
I have been admitted into Yuxi No.1 Middle School. Although it is a great success,______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Yours,
Li Hua
假定英语课上老师要求同桌之间交换修改作文,请你修改你同桌写的以下作文。文中共有10处语言错误,每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。
增加:在缺词处加一个漏字符号 (∧) ,并在其下面写出该加的词。
删除:把多余的词用斜线 (\) 划掉。
修改:在错的词下划一横线,并在该词下面写出修改后的词。
注意:1.每处错误及其修改均仅限一词;
2. 只允许修改10处,多者(从第11处起)不计分。
What are the quality of a good teacher? Let me show you for an example. Mr. Smith, my math teacher, is one of the best that I had ever met. He knows his subject well and she always has special ways to make his classes lively but interesting. We are not kept sit all the time but are encouraging to learn through all kinds of activities. However, he treats all his students equally from the brightest to those what need extra help. I am lucky to have teacher like Mr. Smith.