【推荐1】Penguins（企鹅）are black and white birds. Most of them live at the South Pole. Every day they only see snow around them. They spend most of time living in the ocean. They love their home. Penguins can't fly, but they are good swimmers. They use their wings to swim. They look after their children carefully. They eat fish.

Sadly, many penguins may be in danger now. If we don't take action to protect them, we won't see them any more.

Penguins are facing many problems:

①Earth is getting warmer and warmer, so the ocean（海洋）is becoming warmer and warmer too. The ocean can't give penguins enough food. Some penguins even die of hunger.

②Penguins have many enemies, such as wild dogs, sharks and sea lions.

③Deep-sea fishing and oil exploration（石油勘探）make penguins in danger.

④Something poisonous（有毒的）in the ocean is another danger.

1. Penguins spend most of time ________.
2. Penguins use their wings ________.
3. If we don't take action to ________, we won't see them any more.
4. Penguins have many enemies, such as _________.
5. Deep-sea fishing and oil exploration make penguins _________.

【推荐2】In our city, there is a big zoo. There are a lot of animals in it.

Mona is an Australian koala. She is seven years old. She is very cute. She likes sleeping in the day. But at night she gets up and eats leaves. Mona doesn’t drink(喝) water for months. But she is healthy, because she can get water from the leaves.

The lion’s name is Gerry. He is ugly. He is from South Africa. Meat is his favorite food. Gerry is very lazy. He sleeps and relaxes for 20 hours every day. Today is Gerry’s eighth birthday. The workers in the zoo are having a birthday party for him.

This is a big elephant. His name is Johnny. He is from India. He’s eleven years old. He has bad eyesight(视力). He’s friendly and smart. People can teach him to do something for them.

Yuanyuan is a cute panda. She is five years old. She’s from China. She is very beautiful, but she’s shy, so please keep quiet. She likes eating bamboos(竹子) and drinking water. She relaxes about 10 hours every day.

阅读上面的短文并回答问题。
1. How old is Gerry?
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2. Which of these animals can’t see things very well?
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3. Which of these animals can help people to do things?
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4. How many countries do these animals come from?
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5. Which of these animals is the youngest(年龄最小)?
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【推荐3】Can dolphins talk? Maybe they can't talk with words, but they talk with sounds. Dolphins travel in a group. We call a group of fish a "school". They don't study but they travel together. Dolphins are mammals, not fish, but they swim together in a school.

Dolphins talk to other dolphins in the school. They give information. They tell when they are happy or sad or afraid. They say welcome when a dolphin comes back to the school. They talk when they play.

     They make a few sounds above water. They make many more sounds under water. People can't hear these sounds because they are very high. Scientists make tapes of the sounds and study them. Sometimes people catch a dolphin for a large aquarium(水族馆). People watch the dolphins in a show. Dolphins don't like to be away from  their school. In the aquarium they are sad and lonely. There are many stories about dolphins. They can help people. Sometimes they save somebody's life. Dolphin meat is good but people don't like to kill them. They say that dolphins bring good luck. Many people believe this.

1. What is a school of dolpins?
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2. When do dolphins talk to others?
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3. When do they say “ Welcome” ?
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4. Do they make more sounds above or under water?
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5. Can people hear dolphin sounds? Why ?
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6. How does a dolphin feel in a aquarium?
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【推荐1】Without proper planning tourism (旅游业) can cause problems. For example,too many tourists can make public places crowded, which are also enjoyed by the local (当地的) people. If tourists cause too much traffic, the local people will feel unhappy. They begin to dislike tourists and treat them impolitely. But they forget how much tourism can help the local economy (经济). It is important to think about how tourism affects (影响) the local people. The local customs and beauty should be kept to attract the tourists by the local government. The local government should also care about the health and happiness of local people when developing tourism.

Too much tourism can be a problem. If tourism grows too quickly, people can leave other jobs to work in the tourism industry because they can make more money there. As a result, other parts of the local economy can become worse.

On the other hand, if there is not enough tourism, people can lose jobs, and businesses can also lose money. It costs much money to build large hotels, airports, first-class roads, and other support facilities (设施) needed by tourist attractions. For example, each room of the first-class tourism hotel usually costs about 50 thousand dollars. If the rooms of the hotel aren’t used most of the time, the owner of the hotel will lose money.

Building a hotel is just a beginning. There must be many support facilities as well, including roads to get to the hotel, electricity and so on. All of these support facilities cost money. If these facilities are not used because there are not enough tourists, jobs and money are lost.

1. 完成句子。
The local people feel ________ if tourists cause too much traffic.
2. 完成句子。
It is important to think about ________.
3. 简略回答问题。
How much does it usually need to build a first-class hotel room?
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4. 找出并写下本文的主题句。
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5. 将文中画线句子译成汉语。
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【推荐2】On a summer day in 1948, a Swiss (瑞士的) man named George de Mestral took his dog for a walk in the mountains. After they came home, George discovered that he and his dog were both covered with burrs (带芒刺的小果实).

As an engineer, George naturally began to wonder how exactly the burrs stuck to his dog and his clothes. Then he paid careful attention to looking at them under a microscope (显微镜). He found that the burrs had very tiny hooks (钩子), which allowed them to catch on to things like clothes. George realized that he could use this finding to create a new way to fasten (扣紧) things.

As so often, it is a very long journey from the first idea to the final product. It was easy to find materials that could stick together, but finding materials that would continue to do so after years of use was not easy. George tested a very large number of different materials and production methods. After years of research and work, he invented what is known today as Velcro (魔术贴). In 1955 George started Velcro Industries to turn his idea into a product. In a few years, the product became popular around the world.

Today Velcro is used everywhere. It’s used in backpacks, jackets, wallets, children’s toys, etc. It even turns up in places you wouldn’t expect. For example, Velcro has been used by NASA for astronauts’ suits. The product was also used to hold the heart together during the very first artificial heart transplant   (人工心脏移植).

Complete the summary of the passage above with one word for each blank.

George de Mestral was an engineer from Switzerland. One day in 1948, after coming back from the mountains, he found some burrs on his clothes and his dog. Then he     1     looked at them under a microscope. He found that tiny hooks on the burrs made the burrs catch on to things like clothes. Then George had the     2     of creating a new way to fasten things. It was hard to find     3     that could stick together after years of use. George managed to do that by     4     many different materials and production methods. Finally, he invented Velcro and made it a popular product. Now, Velcro is used everywhere, even in     5     places.

【推荐3】Have you ever thought about one question: Why do we need to learn Math?

It is an interesting question, kids around the world have been asking it for years. For US student, they may get the answer from a new exhibition called. “Math Alive!”47 activities are designed to teach kids how Math is used in everyday life. For example, at one exhibiting(展览) station, visitors test that a person' s arm span（臂展）equals their height. At another exhibition station, visitors can control the robot with the help of Math skills.

The exhibition will visit fifteen US and international cities in the next five years. Organizers（组织者）say they want more kids to learn why Math is important in daily life. Think of simple things, like clocks. They tell time, but only if you know how to read them. That means using Math. How much longer until school ends? How long did you sleep last night? That's all Math, too.

When you go shopping, you     also do lots of Math. How much change would you get if you paid for a RMB 25.99 sweater with two twenties? How would you calculate a 30% discount（折扣）? Even when you're not doing Math, it's all around you. The computer you use to surf the Internet is a machine to do binary（二进制）Math very fast.

So enjoy Math, not for exam, but for the wonderful world it helps to build.

1. What is the name of the exhibition for US students?
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2. How many activities are there in this exhibition?
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3. Why will the organizers hold the exhibition in 15 US and international cities?
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4. You want to buy a RMB 25.99 sweater at a 30% discount. How much should you pay?
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5. What's the main idea of the passage?
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