题目
题型：同步题难度：来源：
people can live and grow food. They are learning a lot about the deserts. But more and more of the earth is
becoming desert all the time. Scientists may not be able to change the desert in time.
Why is more and more land becoming desert? Scientists think that people make deserts. People are doing
bad things to the earth.
Some places on the earth don"t get much rain. But they still don"t become deserts. This is because some
green plants are growing there. Small green plants and grass are very important to dry places. Plants don"t let the
hot sun make the earth even drier. Plants don"t let the wind blow the dirt away. When a little bit of rain falls, the
plants hold the water. Without plants, the land can become a desert much more easily.
B. never have any plants or animals in them
C. can all be turned into good land in the future
D. both A and C
B. they don"t let the wind blow the earth away
C. they hold the water
D. A, B and C
B. there"s not enough rain
C. people are doing bad things to the earth.
D. scientists know little about desert
B. Land is becoming desert faster than scientists can change it back into good land.
C. If scientists can bring water to the desert, people can live there.
D. More and more places are becoming deserts all the time.
B. it is good to get rid of (清除) the grass in the desert
C. all places without much rain will become deserts
D. it is better to grow crops on dry land than to grow grass
答案
核心考点
试题【阅读理解。 Scientists are trying to make the deserts into good land again. They 】；主要考察你对科普环保类等知识点的理解。[详细]
举一反三
protect it.
When Wang Boxuan, a Beijing high schoolboy, uses up his exercise books, he does not throw them away.
Each one is stored at his school with hundreds of exercise books given by other students. Then they are sold to
a Beijing paper making factory.
The paper is recycled and used again by students and teachers in the school. At the same time, the money
made from the sales goes towards schools in Inner Mongolia for planting trees and grass. This place is one of
the sources of the sandstorms that often attack Beijing during springtime.
Wang"s school is one of the schools in the capital that take part in the"green promise"environment protection
activity. So far, nearly 210,000 students have taken part in the activity, collecting more than 87 tons of waste
paper.
With the Olympic Games coming to Beijing in 2008, students are eager (渴望) to help make the capital a
more pleasant place.
"There are some environment problems in the city, such as sandstorms." said Wang. "We should do our duty
and encourage others to do so as well."
Vice- Premier (副总理) Zeng Peiyan has written a letter to the teachers and students to encourage them to go
on supporting environment protection.
B. Store and sell them.
C. Cut them into pieces.
D. Give them to the students in Inner Mongolia.
B. Helping poor students.
C. Planting trees and grass.
D. Being stored.
B. Many years later there will be no waste paper.
C. Many years later, the sandstorms will be weaker in Beijing.
D. Many years later, Beijing will be much dirtier.
a. Trees and grass were planted.
b. Schools in Inner Mongolia received the money.
c. Students collected waste paper.
d. Vice- Premier encouraged the teachers and students.
B. badc
C. bacd
D. cbad
B. Green promise.
C. Collecting waste paper.
D. Making money.
every living thing.
Without it we can"t live. Bad air makes people ill. We must have fresh air to keep us in good health.
In the city there are many people and there are too many cars running on the roads the gas which the cars
spread (传播) out is full of poison (有毒). Every day we breathe it in again and again. This makes us feel sick.
Besides the cars, there are many factories too. From the chimneys (烟囱) of these factories, we usually get
black and grey smoke. This kind of smoke, when mixed with air, is dangerous to our health because it contains
much poisonous gas. So in order to keep ourselves healthy we should go out to the countryside to breathe more
fresh air.
B. It is everywhere.
C. It gives life to every living thing.
D. It does no harm to people"s health.
B. keep us healthy
C. keep out house clean
D. see every thing clearly
B. as much as
C. as dense as
D. as little as
B. out of doors
C. in the countryside
D. indoors
B. countryside
C. seaside
D. big cities
Good health needs good sleep. Going to bed before you"re tired. Not eating or reading in bed. Go to bed at
the same time before midnight and get up at the same time. Your body likes routine (常规) for a good night"s
sleep.
STAY FREE OF FLU
Studies show that a cold or flu virus (病毒) can live on our hands for long. So wash all parts of your hands
often with soap and water. For more ways to prevent the spread of flu, please call. HealthLine at 1800 848 1313.
ORAL (口腔) HEALTH
Brush your teeth twice daily and visit the dentist at least once a year. The mouth is a mirror of disease. The
oral examination is not only for the health of teeth, but the whole body. For more of it, please visit www.
mydr. com. au.
FIT FOR LIFE
Studies have shown that many diseases have something to do with less or no physical (身体) activity. Try
to do it for 30 minutes a day, 5 days or more a week. For more information, please call HealthLine at 1800 438
2000.
B. go to sleep at midnight
C. follow the bedtime routine
D. eat something or read in bed
B. to brush your teeth twice daily
C. to get up early every morning
D. to wash all parts of your hands
B. you don"t often brush your teeth
C. some diseases may be in the mirror
D. you don"t have a good night"s sleep
B. washing hands with cold water
C. sleeping too late sometimes
D. doing little physical activity
B. call HealthLine at 1800 848 1313
C. visit the dentist in your place
D. call HealthLine at 1800 438 2000
to try, because sleep keeps you healthy and it stops you getting fat.
Recently, a group of US scientists did a study (调查) of kids aged between8 and 13. The study found that if
kids sleep for just one extra (额外的) hour each day, the chance of their getting fat is cut by about 30 percent
(30%).
Why? when people don"t get enough sleep, they become tired. When they are tired, they don"t exercise
enough. Also, kids like snacks. If they are awake (醒着的) an extra hour or two each day, they have more time
to eat snacks or other unhealthy foods.
So, how much sleep should you get? Scientists suggest 10 to 11 hours a night for kids aged 5 to 12. For
older kids, eight to nine hours will do.
B. 2
C. 1
B. 8 to 9 hours.
C. 8 to 13 hours.
B. In Britain.
C. In America.
B. Eight to nine hour"s sleep will be too long.
C. Eight to nine hour"s sleep will help get fat.
B. How to keep fat.
C. Enough sleep makes people healthy and slim. (苗条)
no one else was going to pick it up.
I live near a forest in Ohio, America. I can walk there 2 three minutes. I used to love going there to play
with my dog. But one day there was 3 much litter there that I became very unhappy. I decided to clean up the
forest, and I wanted to 4 happy when I went again. I made my first trip to clean the forest that afternoon. I
took a big black rubbish bag with me. Ten minutes 5 I started to pick up litter, my bag was full! There were
cans, bottles, broken glass and newspapers in it.
From then on, I 6 to the forest four times a year to pick up litter. I often stay there for three hours. It
makes me feel 7 to do something for the environment. After each trip, I look through all the litter that I"ve
collected. If 8 of it is recyclable (可回收利用的), I"ll keep it. I can"t understand why people drop litter. But I
will keep on picking it up 9 they stop dropping it. I know I am only doing a small bit 10 the earth, but I still
think it is important.