two or three doors. Such refrigerators can not only keep the food cold and fresh, but also make ice and
freeze the food. However, small ones usually have one door and can only keep things cold and fresh.
There are also refrigerators that are friendly to the environment. In the 1970s, the world was in energy
crisis (危机). Refrigerators use too much energy. So people began to think of ways to improve it. At last
a kind of new refrigerators was made. They use very little energy, but they"re too expensive. They cost
twice or three times more than the ones that we use at home. However, people believe they will be
cheaper and cheaper. As a result, they will be more and more popular.
In the future, there will be refrigerators that can do more than we can imagine. They are called smart
refrigerators (智能冰箱). They have tiny computers inside, with their screens on the door. They can
show us what food is inside. They can also tell us what food to buy. They can even let. us know what
food to eat when we input the necessary health information. That more surprising thing is that they can do
shopping for us when they are connected (连接) to the supermarket.
( ) 2. Refrigerators that use little energy are more expensive.
( ) 3. Environment friendly refrigerators. will be popular some day.
( ) 4. Refrigerators that keep the food fresh are smart refrigerators.
( ) 5 .We can have a "talk" with smart refrigerators.
阅读下文，从各小题所给的四个选项中选出能回答所提问题或完成所给句子的最佳答案。
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 there 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 i928,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 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
| good job come dress own parent hold nothing how necessary |
| 阅读理解 |
| Three kids have been learning chemistry for only a few months. But they have already begun to challenge a world famous scientist! Li Weichi, Huang Runling, and Xiao Yan are from Zhongshan Huaqiao Middle School in Guangdong. They have just found a red cabbage that could be a new kind of acid-base indicator (酸碱指示剂). They want it to take the place of litmus (石蕊) paper. "We"ve learnt to think of and ask questions about life by ourselves," said Li, "We work well with each other." British scientist Robert Boyle discovered the use of litmus paper over 300 years ago. Now it is used widely in experiments all over the world. But when the kids did some experiments in class last winter, they saw that the litmus paper didn"t turn very blue with base matter. It"s hard to get a clear result. Will there be a better indicator than litmus paper? The three kids decided to try and find out! How? They went to collect over 40 plants in parks, gardens and markets. Then they ground (研磨) leaves, flowers and stems (茎) to get the pigments (色素) from them. The kids mixed pigments with acid and base. They spent months watching carefully to see which paper showed the best colour change. They decided it was the litmus paper! "It"s our first scientific journey, Huang said, "But it makes me want to try harder." |
| 1. Whom did the three kids want to challenge? |
| A. Their chemistry teacher. B. Their headmaster. C. Robert Boyle D. Thomas Edison |
| 2. From the text, a red cabbage is a kind of ____. |
| A. plant B. animal C. paper D. liquid |
| 3. What"s the right order for the following sentences? a. Three kids collect red cabbage everywhere. b. The kids mixed pigments with acid and base. c. The kid ground the red cabbage. d. The kids get pigments from it. |
| A. a-b-c-d B. b-a-c-d C. a-c-d-b D. b-c-d-a |
| 4. What is widely used as the acid-base indicator now? |
| A. red cabbage B. litmus paper C. any plant D. any flower |
| 5. The story mainly tells us ____. |
| A. how to make litmus paper B. about the three kids" spirit C. scientist were wrong D. the kids are heroes |
| 阅读短文，根据要求完成下面各小题。 |
| In a classroom in any countries, the teacher teaches more than art or history or language. He or she teaches something behind-the culture(文化)of the country. In a country such as the United States, people with different history, culture and language join together and they pay much attention to personal ideas. Teachers try to make each student special. Students do not have to remember a lot of information, instead, they work and find answers by themselves. There is often discussion in the classroom. At an early age students learn to have their own ideas. Their education encourages personal thought(思想). (3) The importance is placed on how to arrive at an answer and not only to get the correct answer. In most Asian countries, people have the same language, history and culture. Perhaps for this reason, the education there pays more attention to group goals than personal ideas. Children in China and Japan often work together and help each other on homework. In the classroom, the ways of teaching are often very traditional. The teacher says, and the students listen. There is not much discussion. Instead, the students repeat(重复) rules or information that they have been taught in order to keep them in mind. In many ways these differences come from different educational ideas. In Western countries teachers are taught to help students to learn. They make it easier for the students to learn by themselves. (4) In some Asian countries, however, teachers often feel that their job is to pass knowledge to students. |
| (一)根据短文内容简要回答问题。 |
| 1. What does the education in the United States encourage? |
| 2. Which does the education in some Asian countries pay more attention to, group goals or personal ideas? |
| (二) 将短文中划线的句子译成汉语。 |
| 3. ______________________________________________________ |
| 4. ______________________________________________________ |
| (三)请给短文拟一个适当的标题。 |
| 5. ______________________________________________________ |
| 阅读理解。 判断正误。 Lifts are very useful. Why? Think about a tall building you work on the thirtieth floor. Maybe you can walk up all the stairs one time. But can you climb thirty floors to your office every day? Of course not. In an old lift, a worker is needed. He or she operates it up and down. In a modern lift there is no worker. People can operate it themselves. Do you know how to use a lift? OK, let me tell you. For example, you want to go to the twelfth floor from the ground floor. First, you must press the  button, then the door opens. After that you can get into the lift. Third, you press the  , and the door closes. Fourth, you press the number 12, then the lift takes you up to the twelfth floor. When the door opens again, you can get out of the lift. If you want to go down to the first floor, you must press the  , then do the same. It takes you there. It is easy andfast. Now can you use it? ( ) 1. In a modern lift, people can operate it by themselves. ( ) 2. If you want to go upstairs, you must press the .( ) 3. If you want to go down to the first floor, you must press the .( ) 4. In a tall building, it is very easy and fast for you to go up and down in a lift. ( ) 5. Anyone can use the lifts in a tall building. |