Among all of the animals, elephants are the biggest in the world．They are big and strong．Their eyes are very small and bright．Their teeth are large and white．People often call them tusks(象牙)There are no bones in the back of elephants’feet．
Elephants can eat 100 to 1, 000 pounds of grass in a day．They can live 60～70 years．They can walk on tiptoe(脚尖)in the mud easily．Elephants are big, but they can move quietly．
Elephants are friendly to each other, and they never attack(攻击)people．If people train(训练)them, they can help farmers do the work．
Elephants are in danger now! Hunters(猎人)want their tusks, so they kill them．If people sell elephants’ tusks, they can make a lot of money．If we don’t help them, they will all die soon．
(1)
_________ are the biggest animals in the world．
[ ]
A．
Tigers
B．
Elephants
C．
Pandas
(2)
Elephants have _________ and white teeth．
[ ]
A．
small
B．
bright
C．
large
(3)
Elephants eat _________ grass every day．
[ ]
A．
much
B．
many
C．
a little
(4)
The hunters kill them for their _________．
[ ]
A．
eyes
B．
teeth
C．
bone
(5)
Which one is RIGHT?
[ ]
A．
Elephants can’t move quietly, because they are big．
Jeanne Calment took up skating at age 85, made her first movie appearance at age114．and held a concert in the neighborhood on her 121 st 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(限制)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 sul33rise 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 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 1 20．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 guessing
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 HS living until about 120．Researchers are working on treatments that make the life span of mice longer by 50 percent at most．
So, if the average(平均)human life span is about 80 years, says Miller,“adding another 50 percent would get you to 120．”
So what can we learn 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'snever 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．
experts aren’t sure how long one can live
(3)
Who thinks that a scientist will become famous if he makes 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．
阅读理解
There have been many great inventions or things that changed the way we live．The first great invention was the one that is still very important today——the wheel．This made it easier to carry heavy things and to travel long distance．
For hundreds of years after that there were few inventions that as much effect as the wheel．Then in the early 1800s the world started to change．There was little unknown land left in the world．People didn't have to explore much any more．They began to work instead to make life better．
In the second half of the 19th century many great inventions were made．Among them were the camera, the light and the radio．These all play a big part in our daily life today．
The first part of the 20th century saw more great inventions．The helicopter in 1909, movies with sound in 1926, the computer in 1928, jet planes in 1930．This was also a time when a new material was first made．Nylon came out in 1935．It changed the kind of clothes people wore．
The middle part of the 20th century brought new ways to help people get over diseases．They worked very well．They made people healthier and allowed them to live longer．By the 1960s most people could expect to live to be at least 60．
By this time most people in developed countries had a very good life．Of course new inventions continued to be made．But man now had a desire(渴望)to explore again．The earth was known to man but the stars were not．Man began looking for ways to go into space．Russia made the first step．Then United States took a step．Since then other countries, including China and Japan, have made their own steps into space．
In 1969 man took his biggest step away from earth．Americans first walked on the moon．This is certainly just a beginning, though．New inventions will some day allow us to do things we have never yet dreamed of．
(1)
This passage talks mainly about ________．
[ ]
A．
why cars were very important
B．
when light was invented
C．
how inventions affect people's daily life
D．
which country made the first step into space
(2)
According to the passage man didn't have a desire to explore a lot ________．
[ ]
A．
at the beginning of 1800s
B．
in the 1960s
C．
since the 1900s
D．
from the 1800s to 1960s
(3)
In the 1800s, people began to work in order to make ________
[ ]
A．
explorations
B．
their life better
C．
discoveries
D．
a trip to space
(4)
Nylon came out of five years later than ________．
[ ]
A．
radio
B．
camera
C．
jet planes
D．
movies
(5)
People can live longer lives because ________ that help cure diseases have worked very well．
[ ]
A．
doctors
B．
new ways
C．
medicines
D．
new hospitals
阅读理解
The new book Harry Potter and the Half-Blood is warmly welcomed by the children in China．It sells well across China．You can see and hear the advertisements about the book here and there．
Why is the book so attractive(吸引人的)to children? After reading it, I was attracted by the magic world．I can not help asking：where is our own Harry Potter?
China has a long history and colorful culture．With a large market of teenagers, China published(出版)many popular books among children．However, why are the present books not as good as those foreign ones?
Firstly, quiet a number of children’s are of strong sense of teaching, and they have little interest．Reading them, children often have a feeling of being “educated”．Certainly, they don’t like them．Secondly, fewer children like the same stories, but most Chinese books are usually much the same．One knows the ending as early as in the beginning．Finally, the writers seldom think about children’s needs．
First-class Reading for children should be interesting, and written in their language．
(1)
About the present Chinese children’s books, which is NOT right?
[ ]
A．
They have little interest．
B．
Our writers seldom know children’s needs．
C．
Most of them are the same．
D．
They are better than foreign ones．
(2)
Harry Potter
is so popular, because _________．
[ ]
A．
it’s the same as Chinese books
B．
it can lead children into a wonderful world
C．
it’s not written in children’s language
D．
it’s advertised more often on TV or posters
(3)
The Chinese meaning of the underlined phrase “First-class Reading” is _________．
[ ]
A．
第一批读物
B．
一节课的阅读
C．
一流的读物
D．
基础的阅读
(4)
“Where is our own Harry Potter?” means _________．
[ ]
A．
the writer can’t find any books for children
B．
Chinese presents should buy Harry Potter for their children
C．
our children should learn from Harry Potter
D．
Chinese writers should write better books for children
Do you know Fei Junlong and Nie Haisheng? Fei Junlong was born in 1965．He is a Chinese astronaut selected(选拔)as a member of the Shenzhou program．He was born in Jiangsu and joined the People's Liberation Army Air Force(中国人民解放军空军)in 1982 at the age of 17．And since then he has only returned home six times．As a fighter pilot (战机飞行员)，he was selected to be an astronaut in 1998．He married Wang Jie in 1991 and has one son．
Nie Haisheng was born in September 1964．He is also a Chinese astronaut selected for the Shenzhou program．He is from Hubei．After graduating from high school he joined the People's Liberation Army Air Force，and became a fighter pilot．In 1998 he was selected for the astronaut program．
He was one of the three astronauts who were in the final group to train for the Shenzhou Ⅴ flight． Yang Liwei was also picked out for the flight，with Zhai Zhigang．
On September 23，2005，it was reported that Zhai and Nie would be one of the three pairs of astronauts who would be in the final training for Shenzhou Ⅵ．But in the end，Fei and Nie were chosen，and Zhai missed his chance to space again．
Nie Haisheng got married to Nie Jielin and has an 11-year-old daughter．
(1)
When did Nie join the army?
A．In 1982．
B．In 1998．
C．In 1991．
D．After his graduation from high school．
[ ]
(2)
Who among the astronauts in this passage hasn't been to space?
轻松暑假总复习系列答案