题目内容

Jellyfish (水母) mainly live in oceans. Some can also live in fresh water. Unlike real fish, jellyfish do not have backbones. In 1., they don’t have any bones at all. They don’t have brains, eyes, ears and hearts, either. However, Jellyfish do 2. (good) without these body parts. Jellyfish live in every ocean in the world. There are hundreds of kinds of jellyfish. The number of jellyfish keeps 3. (increase).

Unlike real fish, jellyfish do not have fins or tails to help them swim. Instead, they open and close their bodies, getting water in and out. When they push water out, they move upward. Jellyfish can sense light and smell. They can find fish and plants to eat. They catch food with their tentacles(触手). Jellyfish can be dangerous because they sting (蛰). Some jellyfish stings hurt a little. Some hurt a lot. Some can kill. If you go swimming in a sea, 4. (be) careful of jellyfish. Get out of the water if you see them. If you see a jellyfish on the sand, don' t pick it up. If you get stung by a jellyfish, go to the nearest hospital quickly. There are many kinds of jellyfish. The smallest jellyfish are the peculiar creeping jellyfish, which are Just 0. 5mm to a few mm across. The5. (large) jellyfish are the lions mane jellyfish, whose body can be 2m across, with much longer tentacles.

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A city without cars would be very strange, right? But Venice is such a city.

Venice is in the northeast of Italy. It wasn't built on land, like Beijing or Shanghai, but on more than 110 islands.Seawater is everywhere around the city.

Even so, travel isn't difficult. The waterways have always been the best way to get around. There are 117 waterways and more than 400 bridges that can guide you where you want to go.People in Venice move from place to place by boat.

Water makes the city special, but it is also a big problem. Sometimes tourists will have such strange experiences. One moment they walk across the Rialto Bridge, and there’s nothing special. But when they come back to the bridge an hour later, it’s underwater and everyone is wearing rain shoes.

Once, people used too much underground water. This made the city get lower little by little. Now the city has gone down by 23 centimeters. Another problem is the rising seawater. The temperature has risen over the years. This has made the ice of the Arctic Ocean melt. Every year, high waters hit the city in autumn and winter. When a lot of water comes, more than half of the city is underwater.

Scientists are trying different ways to stop the city from getting even lower. The Italian government has asked some of Italy’s biggest companies to build the MOST project, which was planned to be build under the seawater to stop the rising water. Anyway, this project is helping solve the problem.

1.Which is the best way to travel in Venice?

A.400 bridges. B.Taxis and cars. C.The waterways. D.Boats and rain shoes.

2.What doesn’t cause Venice to get lower and lower?

A.The ice of the Arctic Ocean melt. B.Seawater is everywhere around the city.

C.People used too much underground water. D.The temperature has become higher over the years.

3.What can we infer from the last passage?

A.Venice is sure to stop getting lower. B.High waters won’t hit Venice any more.

C.Scientists can solve the problems easily D.Some possible ways help to solve the problem.

4.What’s the best title of this passage?

A.The Specials and Problems of Venice B.The History of Venice.

C.The Places of Interest of Venice D.The MOST Project of Venice.

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