The undersea world is very beautiful. Now more and more people want to dive in the water to find the secret there. Scuba diving is a new sport today. It can take you into a wonderful undersea world.

You will find many strange animals in the sea. Some are as large as a school bus. Many sea animals give out light in the dark and some have sharp teeth.

During the day, there is enough light. Here, under the sea, everything is blue and green. When fish swim nearby, you can catch them with your hands. When you have bottles of air on your back, you can stay in deep water for a long time. However, you can't dive too deep. And you must be very careful when you dive in deep water.

The deep sea is not an easy place to live in. It's cold, and it's dark, too. The deeper it is, the less sunlight there is. At about 3,000 feet, there is no light at all. It is very dark in the sea. Many fishes have no eyes. Some have big eyes. A few have eyes on one side.

Besides the cold and the darkness, deep-sea animals face a third danger ― other animals. Animals eat! They must find food to eat. Many animals eat plants. However, some animals eat meat. This means these sea animals have two big jobs. They need to find animals as food, and they have to try not to become other animals' meal.

1.In the daytime, when you dive in the sea, you ______.

A. can see everything green and blue

B. can't be in danger

C. can catch nothing

D. can’t see anything clearly

2.How many dangers will animals meet in the deep sea?

A. One. B. Two. C. Three. D. Four.

3.When you have bottles of air on your back, you can ______.

A. stay in deep water for a long time

B. dive very, very deep

C. live in deep water easily

D. dive freely without any dangers

4.Which of the following is NOT TRUE?

A. One animal finds something to eat, and it may be eaten by others.

B. At the depth of 3, 000 feet under the sea, many animals can find their way by hearing and feeling.

C. The deeper the sea is, the darker and colder it is.

D. At the depth of 3, 000 feet under the sea, all animals can find their way by seeing.

The famous “green dog” lives in Suzhou with his owner(主人).

In his free time, the “green dog” likes to go for a walk with his owner and swim in the river. But that's not all. He also likes to pick up plastic bottles(捡塑料瓶子) when he is swimming in the river.

His owner told his story to us, “One day, I walked on the road with my dog. Suddenly(突然), the dog jumped into the river and came back happily with a plastic bottle from the river between Nanyuan Bridge and Renmin Bridge. After that, the dog got into the habit of picking up things. He even started to collect bottles on roads.”

The dog's owner says his pet dog can pick up about 30 bottles a day. The dog will always pick bottles up and put them into the nearest rubbish bins(垃圾箱). Sometimes the rubbish bin may be very high, and it is very difficult for him to do_that. He will just put the bottles near the bin and his owner will do it for him.

Now the “green dog” is getting popular, and many people go to see him.

1.According to the passage, we can learn that the “green dog” ________.

A. likes picking up plastic bottles B. loves walking by himself(单独地)

C. has green hair D. likes drinking water in plastic bottles

2.The “green dog” felt ________ when he picked up plastic bottles.

A. scared B. happy C. tired D. surprised

3.What is the third paragraph(段) mainly about?

A. Where the dog comes from. B. How the dog picks up bottles.

C. What the dog's life is like. D. How the dog started picking up bottles.

4.Which of the following can replace(代替) the underlined words “do that”?

A. Find the bottles. B. Help his owner.

C. Put the bottles into the bin. D. Swim in the river.

5.What can we learn from the passage?

A. The dog brings many problems.

B. The dog is helpful.

C. The dog is very popular because he's good at swimming.

D. The dog picks up about 30 bottles a month.

Some Advice on Travel

①Forget fashion(时尚)! Always wear your most comfortable clothes when going on long journeys.

②Traveling on trains and buses can be boring, so take a good book to read.

③If you're going somewhere cold, remember your warm clothes!

④Or, if you are going somewhere sunny, remember to wear sun block(防晒霜) and sunglasses.

⑤Always take a camera with you to capture those special moments.

⑥Be careful with your things whenever you go to busy places, like a train station. There are often thieves there!

⑦Always leave room in your bag for buying presents on the way home.

⑧Most countries have lower prices for students, so if you have one, take your student card with you and save money.

⑨Bus tours often stop at expensive shops along the way. Save your money by buying presents at local shops.

⑩If you travel abroad, remember to take your passport(护照),whatever you do, don't lose it!

⑾.Know more about the foreign customs and cultures before you get to other countries. This can help you have a better time.

根据短文内容,选择最佳答案。

1.If you go to Hainan Island for a trip in summer, you should take with you.

A. warm clothes and sports shoes

B. sunglasses and sun block

C. fashionable clothes and a big bag

D. some fruits and drinks

2.According to the passage, is a good way to keep away from boredom(单调) while you are on a train or a bus.

A. taking a camera B. reading a good book

C. listening to music D. sleeping for some time

3.If a student wants to buy some presents at lower prices while traveling, he should show to the shop assistant.

A. prices B. his things

C. his passport D. his student card

4.The underlined word "capture" in this passage means " ".

A. 拍摄 B. 感受 C. 抓住 D. 控制

5.If you want to go to another country, can help you have a nicer travel.

A. to take your passport

B. to know more about the country's customs and culture

C. to look after your things well

D. to leave your bag in the room

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