题目
题型:湖南省中考真题难度:来源:
traffic lights instead of other colors?
As we know, scattering (散射) happens when light goes through the air. For the same media (媒质),
if the wavelength is long, the scattering will be short. If the wavelength is short, then the scattering will
be long.
Of all lights we can see red has the longest wavelength, so the scattering is the weakest. That means
the red light travels far. In fact, it travels farther on rainy days.
Using the red light can help drivers in farther areas sec the lights. It helps drivers stow down or stop
in lime. If drivers don"t see the red light until they are close, they may not be able to stop the car in time.
An accident may happen Red can also excite people. We can act more quickly when we see the color red.
In a word, red lights help drivers stop in time and help prevent accidents.
B. green
C. yellow
B. weakest
C. farthest
B. 光波
C. 波长
B. It can help drivers slow down or stop in time.
C. A and B
B. How does the red light travel
C. Why do we use red traffic lights
答案
核心考点
试题【阅读理解。 When the traffic lights turn red, we will stop driving a car or crossi】;主要考察你对教育文化类等知识点的理解。[详细]
举一反三
Kitesurfing as a water sport began in the 1980s, but didn"t get popular until the end of last century. It is also
known as kiteboarding, and in some European countries as flysurfing. Kitesurfing works through wind power
(动力) by using a large kite to pull a rider on the water at high speed.
At first, kitesurfing was a difficult and dangerous sport. Now it is becoming easier and safer because of the
safer kite design. For an able and strong person, kitesurfing can be a very fun, extremely exciting sport, just
like skating on the water with a feeling of flying. It has become more and more popular.
Compared with other water sports, kitesurfing is easier to learn. A beginner can understand how to operate
the kite with 5-10 hours of training. And anybody aged from 13 to 65 can learn. It is not expensive to get the
equipment for kitesurfing, which costs $1,000 to $2,500. Training lessons range from $200 to $500 for two
or three hours. With the development of its equipment progress, kitesurfing is becoming even safer. After some
training, you can enjoy its excitement and challenging feeling.
With the rising popularity of kitesurfing, most major seaside cities have kitesurfing clubs. In China, Xiamen
is the only place that has the kitesurfing club, which provides professional kitesurfing training and equipments.
B. 50
C. 100
D. 130
B. Wind
C. The sun
D. The kite
B. 按……顺序排列
C. 向……方向延伸
D. 根据……归类
B. more and more people are enjoying its excitement
C. its equipment progress makes it easier and safer
D. all people can learn and take part in it
B. the progress of kitesurfing equipment
C. the history of kitesurfing in China
D. the development of kitesurfing
B. Sad movies
C. The planets
D. Weather service
B. Unit 2
C. Unit 3
D. Unit 4
B. weather conditions
C. sports tools
D. space news
B. understanding attitude
C. understanding main ideas
D. guessing meaning of new words
The population of the Earth is growing faster. It is important thatwe look after the Earth. We need it !
The Earth gives us a lot of things. We also give the Earth a lot,but some of the things are not good.
In nature, when something dies,other animals and plants get food from it. Every animal or plant gives
food for other animals or plants. However, animals can"t get food from many of the things that we "give"
the Earth. Animals and plants can"t eat metal, plastic and glass. These things will stay in the ground for many,
many, many years.
Some rubbish is very dangerous for plants and animals. In some places, many animals live together. One
animal makes food for many more animals. If we put rub- bish and chemicals in the water,the plank- ton
(浮游生物) can die. If there isn"t any plankton,many animals have nothing to eat.
So what can we do? Don"t leave any rubbish in the countryside! Don"t make so much rubbish !
B. rubbish
C. chemicals
D. pollution
B. plastic and wood become food
C. other animals and plants get food
D. metal and glass stay in the ground
B. use more wood
C. keep frogs in the water
D. make less rubbish
reading is so difficult that it almost seems like a foreign language. In a way, it is the language of science.
You should not expect to be able to read a difficult science passage the same way you read an interesting story;
you should not expect to read it easily and all at once. Instead, you may have to read it several times through,
catching on the meaning of difficult words,going back over difficult sentences, and finally putting the whole
thing together. Do not be discouraged if the whole passage doesn"t make sense to you at first. You need to
pick it apart patiently until you can understand it.
These are the steps to follow when you are reading something difficult;
☆1. Start to read normally until you run into a sentence that doesn"t make sense to you.
☆2. When a sentence doesn"t make sense,go back and read it again more slowly.
☆3. Look for any words you don"t know in the sentence. Try to understand their meanings using word parts
and context clues (上下文线索) . If necessary, look them up in the dictionary.
☆4. Look at the next few sentences to see if they explain more about the sentence you are working on. Do
not read very much farther ahead until you understand what is being said.
☆5. Finally, read the sentence again. Try to put it into simpler words.
☆6. Read through the passage once. Try to understand all the hard parts well. Then read the whole passage
once more at a usual speed. This helps you to put all ideas together.
The steps sound a lot harder than they are. It is really just the normal way good readers understand
anything that is difricult to read. After you have done the best you can this way,you should always feel free
to ask for help from your teacher,if you have one.
B. come across
C. look into
D. pass by
B. it is sometimes difficult to read a science passage
C. the six steps are helpful in learning spoken English
D. interesting stories help readers to improve their English
B. difficulties in reading science
C. ways of reading science passages
D. researches on science and English
person was born. From China comes the belief that the year of birth influences one"s personality. In the past
century, a new belief has arisen: the idea that personality is related to one"s ABO blood type. People with blood
type A, for example, are considered more likely to be serious, hard-working, and quiet, while people with blood
type O are likely to be popular and outgoing, yet often unable to finish what they start. Though this belief
continues to be strong, some people question whether it is true.
The blood-type personality theory (理论) started in Japan in 1927 when Fu- rukawa Takeji noticed
personality similarities and differences among his workers. The idea soon went out of fashion, but was
brought back by a Japanese television host named Toshitaka Nomi in the 1970s. The belief is still strong in
Japan and is increas- ingly popular in neighboring countries. Some young Koreans have taken to the theory.
A recent study showed 76 percent of Koreans aged between 13 and 64 believing in the blood-type personality
connection. Though most Asians might believe in the blood-type theory, for many it seems harmless and not
something to be taken too seriously.
There is also the possibility that people are influenced to change their personality to match the expected
stereotypes (思维定式). A survey of studies made in Japan over a 10-year period found that while in the 1970s
there was no relationship between blood types and personality, later studies in the 1980s found that the
relationship increased a little. Researchers concluded that as the belief in the stereotypes increases, people
may be changing their personality to follow the blood-type theory.
Is the belief true? The scientists in Asia largely dismiss the belief as a modem day superstition (迷信).
Most studies have failed to find any strong connection between blood and personality. Generally, scientists
warn against making predictions or important decisions based on this questionable theory.
B. the relationship between the two blood types
C. the influence of blood types on one"s behaviour
D. the connection between personality and blood types
B. It was brought to them.
C. They liked and accepted it:
D. They stole the idea from others.
B. The blood-type theory began in Japan in the 1970s.
C. The blood-type personality theory is about blood types.
D. People don"t change their personality to match the theory.
B. Is the personality changeable?
C. Is it in your blood?
D. Is it in your mind?
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