One theory is that the stripes help the zebra cool down. On hot days the black stripes get a lot hotter than
the white area of the zebra and under the black stripes there are special layers of fat for protection. Hot
air then rises off the black stripes, forcing colder air down around the white areas, cooling the zebra
down. This, however, is just a theory. The stripes can also confuse predators (食肉动物) when zebras
stay with other animals in great numbers.
Zebras have excellent hearing and eyesight and can run at a speed of up to 35 miles per hour
(56 kilometers per hour). They also have a powerful kick that can cause serious injury to a predator, like
a lion, or an African wild dog. Usually the lead male of the herd stays at the back of the group to defend
against predators if necessary, while the females and youngsters run from danger.
Zebras are herbivores and feed mostly on grasses, although they also might eat the leaves and stems (茎) of bushes a bit. They eat grasses for many hours each day, using their strong teeth. Spending so
much time chewing wears the zebra"s teeth down, so their teeth keep growing all their lives. As the dry
season arrives and the grasses die back, zebra herds travel to find more food and water holes for drinking. Most zebras have no specific territories. They travel from place to place, never staying in one area very
long.
B. The black stripes help the zebra live through cold days.
C. The zebra can easily be attacked by predators.
D. The zebra always travels with other animals.
B. animals that only eat plants
C. animals that kill and eat other animals
D. animals that live in groups
B. are used all day
C. are always growing
D. are kept clean
B. Their stripes can confuse predators.
C. They can run 56 miles per hour.
D. They usually stay in one area all their lives.
B. Everyday Tips
C. Digital Stadium
D. Discoveries
readership is limited to those who choose to study literature at university.
Shakespeare"s work,together with most other classics,is seen as remote,and written in a
400yearold version of English that is about as inviting as toothache.
Still,in British schools,it is compulsory to study the bard(诗人),and when something is
made compulsory,usually the result is boredom,resentment(憎恨) or both.
This was my experience of the classics at school.But when I reached my late teenage
years,I had a change of heart.Like every other young person since the dawn of time,the
world confused me.I wanted answers,so I turned to books to find them.
I went on to take a PhD in literature and have taught it in Britain and China.I have never
regretted it.There is something in literature that people want,even if they don"t read books.
You see this in the popularity of TV and movie adaptations of great works,the recent film
version of Jane Austen"s Pride and Prejudice being a_case_in_point.These popular
adaptationsmay help increase people"s interest in the classics.
Reading a simplified Romeo and Juliet may perhaps lead to a reading of Shakespeare"s
actual play.If that is the case,then I welcome the trend.But do not make the mistake of thinking
that it is the same thing.Shakespeare is a poet.His greatness is in his language.Reading
someone else"s rewriting of his work is like peeling a banana,throwing away the fruit,and
eating the skin take on the original.It really is worth the effort.
B.British students usually find compulsory reading dull.
C.Only those studying literature read Shakespeare"s works.
D.For British people,Shakespeare"s works are no longer classics.
B.was forced to read the classics for a PhD
C.turned to literature to seek answers in his teens
D.thinks only people who read books like literature
B.get a PhD in literature
C.seek their answers about the world
D.become more interested in the classics
B.a good example
C.a movie adaptation
D.a popular phenomenon
B.The rewriting trend does more harm than good.
C.Readers should try to read the original versions.
D.Readers need to learn the language in the classics.
_______________________________________________________
From the first use of the rocket to carry satellites into space to the setting up of space
stations,human beings have been putting great effort into space research.And so far,we have
achieved many successes.But there are still numerous tasks in front of us and we should not
cease trying to progress.
The international space station is an important step we should take in space exploration.
It is not only helpful but also essential.It provides a proper space environment for many
experiments that we have wanted to do for a long time.It is also a base for the observations
of the earth and the universe.It could also be an important base for later travels to the
moon and Mars.In a word,if we want to explore space more,the first thing we should do
is to set up a space station.
As the space station costs a lot of money,it is hard for one country alone to establish
one.The USA seems to be the only country that has the ability to build a space station alone,
and it has tried to do so,but not very successful.So it aggregated many other countries to
work on it together.Though it is still extremely expensive,it is much cheaper than doing it
alone.It is really a job that needs everyone"s effort and will benefit everyone.
But even so,the funds needed are still a big problem.As for the USA,it seems that it has
too many things to spend its money on.Although it is the richest country in the world,it has
much debt every year.It has to make arrangements about its finance,and try to find a balance
in all these issues.
B.Doubtful.
C.Critical.
D.Dissatisfied
B.many experiments have been done in the international space sation
C.the international space station is necessary for people to explore space more
D.people have traveled to Mars from the international space station
international space station?
B.That it needs everyone"s effort.
C.That it will benefit every participating country.
D.That it is too far away from the earth.
B.scolded
C.allowed
D.forbade
5.Which of the following aspects about building the international space station is NOT
mentioned in the passage?
B.Cooperation.
C.Significance.
D.Specific arrangements.
A.City Water Skiing Centre-We are in the heart of the city and give you an easy chance
to enjoy the fun and excitement of water skiing.We offer half hour lessons every hour between
9 am and 4 pm.A fun way to get a lot of exercise quickly and then stay fit.
B.Horse Riding School-Our experienced teachers provide oneonone instruction that
makes learning to ride a horse safe and easy.We are located on a large farm where you will
be able to get to enjoy lots of fresh air and the beauty of nature.Open 7 days a week between
8 am and 6 pm.
C.Ballroom Dancing Society-The dancing society is organizing a special course for
new members.No experience is necessary and if you don"t have your own partner we will
arrange one for you.Have fun learning to dance and making new friends in class and at our
many social events.Classes begain every Monday and Thursday from 7 pm to 9 pm.
D.Hiking Club-The club is looking for new members to join us on our regular hikes.
Each weekend we go to local mountain and forest locations for long walks providing the
chance for plenty of exercise and fresh air.Different members take part each week so you
will have the chance to make new friends.The hikes range in difficulty from easy to very hard
and we expect our members to be fit before they join.
E.Ron"s Boxing Gym-We don"t just teach you how to box;we teach you how to keep
fit for the rest of your life.Our training involves many different activities such as running,
skipping and lifting weight,as well as -of course-actual boxing.Once a month we also organize
practice fights for members of the same sex and weight.Open from 2 pm to 10 pm.
F.Water Polo Club-If you can swim and like ball sports then you"ll love water polo.It
is like playing football in the water,a fun and lowimpact way to stay healthy.As a waterbase
sport it is also the ideal way to recover from injury.Open weekdays from 9 am to 11 am and
4 pm to 8 pm.
请阅读下列个人信息,然后匹配人物与拟选的课程.
1.Harold-is a busy bank manager working in the city.He has put on a lot of weight in
recent years and wants to take up a sport that will help him get fit.He enjoys thrilling and
exciting sports but as he often has to work late into the evening and on the weekend so he
only has time to go during his workday lunch hour.
2.Maude-has been retired for 2 years.She is in good health but wants to keep active
and remain in shape.She is interested in a hobby that isn"t too difficult to learn and will give
her lots of fresh air and the chance to meet some new friends.She only has free time on the
weekend as most weekdays are spent taking care of her grandchildren.
3.Sid-is a high school student that recently hurt his knee playing football.The doctor
has told him that for the next 6 months he shouldn"t put too much pressure or weight on it
and he needs to do some sport that will help him build up his strengthbut will not cause any
more damage to his knee.Afternoon after school is his preferred time.
4.Nancy-is a university student who loves excitement and is always willing to try out
something different.She has little patience however and wants a sporting activity that will give
her the chance to do many different things.As she works part time after class and on the
weekend she is only free on weekday afternoon.
5.Spike-has recently moved to the city and doesn"t have many friends.He is not really
a sports fan but wants to do something that is fun and that will give him the chance to meet
new people.He is only free in the evening.
1.________ 2.________ 3.________4.________ 5.________
Olympic Committee ( IOC ) voted Thursday to host the first-ever Youth Olympics.
The Summer Games are planned to stage in August of 2010. The 12-day competition will feature
3,200 kids between the ages of 14 and 18. The Winter Games will be held in 2012 and are expected to
attract 1,000 athletes. Both games will take place every four years.
Seeing the rise in childhood fatness, IOC president Jacques Rogge said he hopes the competitions will encourage young people to get off the couch and get into shape. Rogge also admitted that the IOC is
looking to pull in a younger television audience to the Olympics.
In recent years, interest in the games among young people has fallen, with the average age of Olympic viewers on the rise. Rogge admitted that kids today are more interested in flashier( 浮华的 ) athletic
sports like the X Games, which stand for such sports as BMX freestyle, surfing, and Moto X Racing.
The Olympics have tried to keep up with the competition by adding BMX-cross cycling, ski cross,
and snowboarding to the program. And the IOC is hoping to strengthen its fame among teens by adding
skateboarding in the 2012 London Olympics.
The Youth Olympics are the IOC"s latest attempt to draw the attention of young viewers. "Just as the
IOC has known, over our 100-plus years of living, how to move with the times---so we must now adapt
to meet the taste of today"s young generation," he said.
1. According to the passage, the third Winter Youth Olympics will be held ______
A. in 2012
B. in 2016
C. in 2020
D. in 2018
2. The aim of the Youth Olympics is to __________.
A. encourage young people to exercise more
B. meet the needs of some schools and parents
C. develop students" sense of competition
D. stress the importance of the Olympics
3. Which of the following is NOT mentioned in the passage ?
A. When the Winter Youth Olympics will be held.
B. Where the Summer Youth Olympics will be held.
C. How long the Summer Youth Olympics will last.
D. When the Summer Youth Olympics will be held
4. The Summer Youth Olympics are the following except___________.
A. going to be held in London in August of 2012
B. planned to stage in August of 2010
C. going to be held every four years from August of 2010
D. the IOC"s latest attempt to draw the attention of young viewers
Since the 1970s,scientists have been searching for ways to link the brain with computers.
Braincomputer interface (BCI) technology could help people with disabilities send commands
to machines.
Recently,two researchers,Jose Millan and Michele Tavella from the Federal Polytechnic
School in Lausanne,Switzerland,demonstrated(展示)a small robotic wheelchair directed by
a person"s thoughts.
In the laboratory,Tavella operated the wheelchair just by thinking about moving his left or
right hand.He could even talk as he watched the vehicle and guided it with his thoughts.
"Our brain has billions of nerve cells.These send signals through the spinal cord(脊髓)to
the muscles to give us the ability to move.But spinal cord injuries or other conditions can
prevent these weak electrical signals from reaching the muscles,"Tavella says."Our system
allows disabled people to communicate with external world and also to control devices."
The researchers designed a special cap for the user.This head cover picks up the signals
from the scalp(头皮)and sends them to a computer.The computer interprets the signals and
commands the motorized wheelchair.The wheelchair also has two cameras that identify objects
in its path.They help the computer react to commands from the brain.
Prof.Millan,the team leader,says scientists keep improving the computer software that
interprets brain signals and turns them into simple commands."The practical possibilities that
BCI technology offers to disabled people can be grouped in two categories:communication,
and controlling devices.One example is this wheelchair."
He says his team has set two goals.One is testing with real patients,so as to prove that this
is a technology they can benefit from.And the other is to guarantee that they can use the
technology over long periods of time.
B.link the human brain with computers
C.help the disabled to recover
D.control a person"s thoughts
B.By talking to the machine.
C.By moving his hand.
D.By using his mind.
B.computer→cap→scalp→wheelchair
C.scalp→cap→computer→wheelchair
D.cap→computer→scalp→wheelchair
B.prove the technology useful to them
C.make them live longer
D.learn about their physical condition
B.New Findings about How the Human Brain Works
C.BCI Could Mean More Freedom for the Disabled
D.Robotic Vehicles Could Help to Cure Brain Injuries
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