根据材料内容，选择正确答案。D Look up in the sky. Do you see any clouds? What do they look like? Some clouds are...

题型：阅读选择题类：常考题难易度：困难

初中英语牛津译林版七年级下册Unit 5 Amazing things单元测试

根据材料内容，选择正确答案。

Look up in the sky. Do you see any clouds? What do they look like? Some clouds are fluffy(绒毛状的) and white, like cotton balls. Others are dark almost black, and make you hold an umbrella. At sunrise and sunset, clouds can look red, purple, or yellow—as if they were colored with crayons. But what are clouds anyway?

You can't reach out and touch the clouds, but you can make your own in a bottle.

You need

* an adult helper

* a huge, empty glass jar

* a metal strainer(过滤器)

* hot water

* ice

Do these

Step1. Have your helper fill the jar with hot water, leave it there for two minutes, then pour out most of the water. Leaving just an inch or two at the bottom of the jar.

Step2. It's your turn, put the strainer over the mouth of the jar, fill the strainer with ice. Watch the jar.

What happened?

A cloud formed in the jar! Some of the hot water at the bottom of the jar turned into hot water vapor(蒸汽). The water vapor rose and met with the cold air coming off the ice. When the water vapor condensed, it formed a cloud. Hot air rises and carries with it lots of water vapor, the higher the air rises, the more it cools down. Soon the cold air can't hold all the water vapor so it starts turning into tiny water drops, and becomes a cloud.

（1）、This text mostly about .

A、the weight of a cloud B、what makes a cloud C、the colour of clouds D、why clouds are fluffy

（2）、What do you need for Step 1?

A、A jar. B、A strainer. C、Ice. D、Crayons.

（3）、The main purpose of the last paragraph is to show .

A、the importance of the experiment B、the reason of the experiment C、the result of the experiment D、the steps of the experiment

举一反三

In America, when people say ‘man's best friend', they don't mean another person. Instead, they are talking about a lovely animal—a dog! These words show the friendship between people and animals. Dogs and other pets can give joy to people's lives. Some people even leave all their money to their pets when they die!
Animals can help people, too. You can teach dogs to be the ‘eyes' for blind (失明的) people or ‘ears' for deaf (聋的) people. Scientists have found that pets help people live longer! They make people happier, too. Because of that, they bring animals into hospitals for ‘visits'.
Americans have ‘Be Kind to Animals Week' in the first week of May. There are many pet shows during the week. Even if you don't live in America, you can also show your love to animals. How? First think about how animals make your life richer (更丰富). If you have a pet, take more time this week to play with it. Remember to give it nice food. If you don't have a pet, be kind to animals around you. For example, if you see a street dog, don't kick it. Just leave it alone, or make friends with it. If others around you do bad things to animals, try to stop them. As people, we must protect (保护) animals because they can't speak for themselves.

    As we know, it is not easy to build a satellite(卫星). Building a traditional satellite usually takes years. The costs can be as high as $250 million or more. Most members of the design teams have worked in the field for a long time. They hold advanced degrees(学历) in math, science, or engineering.
    But things are changing. High costs, unusual educational needs and long start-up times are no longer an obstacle(障碍) to space exploration. The scientists have developed a new type of tiny, inexpensive earth-orbiting(轨道) satellite.
    So far, college students have built and launched(发射) several cube-shaped satellites, or CubeSats. At least 15 more are ready to go. Those already in orbit take pictures, collect information and send it back to the earth, just as regular satellites do.
    But you might not even have to wait until you get to college to start designing and building your own satellite. A new program called KatySat aims to get teenagers to take part in. When kids understand what satellites can do, the kinds of ideas they'll come up with may be countless.
    Education isn't the only aim of CubeSats because these tiny, technology-filled boxes are inexpensive to build and can be put together quickly, they're perfect for testing new technologies that might one day be used on major space tasks.
    The biggest challenge now is to find ways to bring the satellites back to the earth after a year or two. Or space junk could gradually increase because CubeSats become more popular.
   Nowadays, college and high school students are getting a chance to learn what it takes to explore in space. Someday—perhaps a lot sooner that you imaging—you might get to design, build and launch your own satellite. If you do, you're sure to have fun. And you might also get crazy about science for life.

阅读下列短文，从每题所给的四个选项（A、B、C和D）中选出最佳选项。

Jogging is good for us and helps us live longer and healthier. It's easy to do and free. You do not have to spend money jogging. You can do it in a park or even in your home. But many people find it boring after jogging for a while. Then how can we keep jogging fun? Here are some ideas to make your jogging more interesting.

First, you should choose to wear your favourite sports clothes and shoes when you jog. They make you more comfortable and more likely to run.

Always jog outdoors. By changing your route, you can choose another street, and you will always have something interesting to enjoy when you jog.

Take along with your MP3 player and listen to your favourite songs when you jog. The music can make you excited and run farther without feeling bored.

It's always more enjoyable with a friend. Make friends while jogging. Join a running club, find a new running partner, or invite an old friend to go jogging. It's better to find a friend who runs a little faster than you. Then you can try to catch up with him or her.

不同的人有不同的职业规划，你所在的学校英语俱乐部组织成员交流自己的职业规划。请你根据以下内容提示，以 "My Dream Job'为题写一篇短文介绍自己的职业规划。

内容提示：1. What is your dream job?
2. Why is it your dream job?
3. How will you make your dream come true?

注意：文中不得透露个人真实姓名和学校：词数：60-80：标题和开头已给出，不计入总词数。

My Dream Job

Different people have different dream jobs.

阅读理解

As a traditional and meaningful board game, Weiqi was invented in China more than 2,500 years ago and it is still played until today.

The playing pieces are called stones. One player uses the white stones and the other, black. The players take turns to play the stones on the game board. As we know, the board surface has 361 cross points. The stones are placed on them.

Weiqi is also called Go in the world. Learning it can not only improve people's logical thinking ability, but it can also develop their calm character. That's why it is more and more popular with modern people.

In the Sui and Tang Dynasties, Weiqi traveled to Japan, and then to Europe in the 19th century. Now it has grown into an international competition event. So far, people from over 40 countries have played it. Among them, players from China, Japan and South Korea have the highest level of Weiqi.

On February 19, Chinese-English Dictionary of Weiqi Term（术语）came out in Beijing. It's the first professional dictionary about Weigi in China. As a symbol of Chinese culture, Weiqi has its special language. It also has its own way of thinking and the method of communicating. The dictionary will serve as a necessary tool and bridge for spreading Weiqi culture.

阅读理解

1. Meet Sora, the cool model from OpenAI. It can turn your words into videos like magic! Just tell Sora your idea, and watch it make a video right before your eyes.

2. There's no doubt that Sora is amazing. Whether on a large TV or a small smartphone, Sora's videos are always easy to watch and enjoy. Sora can also make scenes(场景) with lots of people doing different things with clear details. It also knows how things should look in real life.

3. Why is it so good? Actually, Sora looks at many videos and learns from them by breaking them into very small bits(片段). It uses these bits to make a new video. The new video is gray at first and out of the order- you can't tell what's in it. Then, Sora fixes the video until it looks good and smooth(流畅的). Besides, Sora also gets help from ChatGPT, which turns the user's short sentences into clear orders. This helps Sora make the video just as you asked.

4. ▲ Sora may find" busy" pictures hard to understand. For example, when a person moves, things around them change. In one video created by Sora, a grandma blows the candle on a birthday cake, but the fire doesn't move. In another video made by Sora, a lady in a red dress is walking on a street. The picture in the water on the ground changes when she walks. The people in the back move in a right way and the buildings change as she walks. The woman's face looks real. However, when the video reaches 30 seconds, the woman's right and left legs exchange places as she walks. Sora might have trouble knowing which way is" left" and which way is" right", and this could make it hard for the lady to move legs correctly.

5.Now, only a small group of people can use this text- to- video model. OpenAI wants to make Sora as clever as it can be before allowing everyone to use it. They want to be careful because Sora is a complicated(复杂的) AI model.

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