阅读短文，选择正确答案。 To find out whether bees (蜜蜂) can see colours, the following e
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| 阅读短文，选择正确答案。 |
To find out whether bees (蜜蜂) can see colours, the following experiment is made. A round table is put in
a garden, and on the table is a piece of blue cardboard (硬纸版) with a drop of syrup (糖浆) on it. After a short
time, bees come to the syrup. The bees then fly to their hive (蜂房) and give the syrup to other bees in the
hive. Then they return to the feeding-place which they have found. After a while, the blue cardboard with the
syrup on it is taken away. Instead of this card, a blue card is now put on the left side of the first feeding-place
and a red card to its right. These new cards have no syrup on them. Very soon bees arrive again, and fly straight
to the blue card. None go to the red card. |
| 1. How many cards do you need to prepare for the experiment? |
| [ ] |
A. Two: one blue and one red
B. Three: two blue and one red
C. Three: one blue and two red
D. Four: two blue and two red |
| 2. During Step 2 of the experiment, the bees go to ________. |
| [ ] |
A. the blue card with syrup on it
B. the new blue card with no syrup on it
C. the empty space where the original (原先的) blue card was
D. the new blue card with syrup on it on the left of the red card |
| 3. The experiment has proved ( 证明) that bees ________. |
| [ ] |
A. cannot see colors
B. can see colors
C. can not see blue
D. cannot see red |
| 4. Which of the following is the best title for the passage? |
| [ ] |
A. Bees Love Blue
B. Bees Love Syrup
C. Bees, Color and Syrup
D. Can Bees See Color? |
答案
| 1-4 BBBD |
举一反三
| 阅读短文，选择正确答案。 |
Now satellites are helping to forecast (预报) the weather. They are in space, and they can reach any part
of the world. The satellites take pictures of the atmosphere (大气), because this is where the weather forms
(形成). They send these pictures to the weather stations. So meteorologists (气象学家) can see the
weather of any part of the world. From the pictures, the scientists can often say how the weather will change.
Today, nearly five hundred weather stations in sixty countries receive satellite pictures. When they receive
new pictures, the meteorologists compare (比较) them with earlier ones. Perhaps they may find that the clouds
have changed during the last few hours. This may mean that the weather on the ground may soon change, too.
In their next weather forecast, the meteorologists can say this.
So the weather satellites are a great help to the meteorologists. Before satellites were invented, the scientists
could forecast the weather for about 24 or 48 hours. Now they can make good forecasts for three or five days.
Soon, perhaps, they may be able to forecast the weather for a week or more ahead (提前). |
| 1. Satellites travel _______. |
| [ ] |
A. in space
B. in the atmosphere
C. above the ground
D. above space |
| 2. Why do we use the weather satellites to take pictures of the atmosphere? Because _______. |
| [ ] |
A. the weather satellites can do it easily
B. clouds form there
C. the weather forms there
D. the pictures can forecast the weather |
| 3. Meteorologists forecast the weather _______. |
| [ ] |
A. when they have received satellite pictures
B. after they have compared new satellite pictures with earlier ones
C. before they received satellite pictures
D. during they study satellite pictures |
| 4. Maybe we"ll soon be able to forecast the weather for _______. |
| [ ] |
A. one day
B. two days
C. five days
D. seven days or even longer |
| 5. The main (主要的) idea of this passage is that satellites are now used in _______. |
| [ ] |
A. taking pictures of the atmosphere
B. receiving pictures of the atmosphere
C. doing other work in many ways
D. weather forecasting |
| 阅读短文，完成下列各题。 |
Snow fell on the mountain. It snowed and snowed. The snow did not melt (融化). It became deep and
heavy. The snow on the bottom pressed (挤压) together, it became ice.
The ice was very wide and thick. It began to move down the mountain. It was like a river of ice. It was a
glacier (冰河).
Sometimes the glacier moved only a few inches (英寸) each day. As it moved, it took rocks and dirt with it.
It changed the land. In some places, it left hills. In some places, when the glacier melted, it made rivers and
lakes.
A million years ago, there were many big glaciers. Glaciers covered many parts of the world. The glaciers
changed the land.
Glaciers are still at work today. A glacier in the north of Canada is cutting a new path (路) down the side of
a mountain. This glacier will change the land, too. |
| 1. The snow that fell on the mountain . |
| [ ] |
A. became snowman
B. melted
C. became ice
D. turned to rain |
2. The word in the story that means a river of ice is ________.
3. The story says, "The snow did not melt. It became deep and heavy". The word "it" means . |
| 4. Which of the following does this story lead you to believe? |
| [ ] |
A. There are not as many glaciers as there used to be
B. Glaciers do not change the land as they move over it.
C. Glaciers are found only in warm places. |
| 5. How fast did the glacier move? (Which sentence is exactly like the one in your book?) |
| [ ] |
A. Sometimes the glacier moved only once a year.
B. Sometimes the glacier moved over ten miles each day.
C. Sometimes the glacier moved only a few inches each day. |
| 6. The main idea of the whole story is that _______. |
| [ ] |
A. snow is heavy
B. the high land never changes
C. glaciers changed the land |
| 根据表格内容，选择最佳答案。 |
| Country | Soviet Union (苏联) | The U.S.A | China | | Date | April 12, 1961 | May 5, 1961 | October 15, 2003 | | Astronaut | Yuri Gagarin | Alan Shepherd | Yang Liwei | | Age | 27 | 38 | 38 | | Spaceship | Vostok 1 | Mercury 3 | Shenzhou V | | Flight Time | 1 hour and 48 minutes | 15 minutes | 21 hours | | Height (高度) | 327 km | 185 km | 343 km | | Circles around the earth | 1 | 0 | 14 | | 根据短文内容，判断正(T)误(F)。 | Many young people can use a computer, but few of them know how to look after it. Remember the
following tips when you use a computer.
Keep your computer in a cool, dry room. Too much or too little heat is bad for computers. Damp
(潮湿) is also bad for them. Most computers work best at a temperature of 5-10 degrees centigrade
(摄氏度).
Do not let people smoke cigarettes near your computer. Smoke of all kinds is very bad for many parts
of the computer and can cause many problems.
Do not eat or drink when you are near your computer. Pieces of food or drops of water on the keyboard
can also cause many problems.
Make sure that the keyboard and the screen are the correct height for you. If they are not correct, you
will get backache.
Make sure the screen is the correct distance from your eyes. If you wear glasses, make sure these
glasses are correct for using with the computer. Some people use a different pair of glasses when they
use a computer.
Keep your screen clean and do not have it too bright. A dirty screen can hurt your eyes. A very bright
screen can also be bad for your eyes. If you can afford one, buy a computer screen. It will be better for
you than using the screen of a TV set.
Never use any software (软件) that you don"t know whether they are clean or not. You must be careful
because some software can bring viruses (病毒) into the computer. If your computer has viruses, it can"t
work or even breaks down. | ( )1. According to this passage, most young people can control computers well while paying little
attention to the keeping of them.
( )2. Putting the keyboard and the screen too high means you don"t have to look at your manuscript
(手稿) while typing.
( )3. Some people use a different pair of glasses when they use a computer because they want to
protect their eyes.
( )4. It"s better to use a TV set screen instead of a computer one because a TV set is usually larger
than a computer one.
( )5. "Clean software" means the software without any viruses. | | 根据下列短文内容，在短文后的空格处填上一个恰当的词，使短文完整、通顺。 | Big schoolbags have been a serious problem for students 1 a long time. Maybe your schoolbags is too
2 to carry, and it troubles you a lot when you want to find a book out to read. Now an e-textbook will 3
you.
4 is said that e-textbooks are going to be used in Chinese middle schools. An e-textbook , in fact, is a
small computer. It is much lighter than a usual schoolbag and easy to carry. 5 it is as small as a book, it can
hold all the materials. The students can read the text page by page 6 the screen, 7 notes with the pointer
(屏写笔). And even "hand in" their 8 to their teachers by sending-emails.
Some people say e-textbooks are good, but some say they may be 9 for the students" eyes. 10 do you
think of it?
1. 2. 3. 4. 5.
6. 7. 8. 9. 10. | 最新试题
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