题目内容
B
It is natural that children are curious about the world around them. For example, they want to know how their hearts beat. They want to know why the ocean water tastes salty.
As children grow up, they become curious about different kinds of things. When they are babies, they are interested in the parts of their bodies and in the smiles of their mothers. They become interested in the physical world around them: the plants, the animals, the sky. Later, they become interested in the things that people have made: wheels, bicycles, cars. And when they are adults, their curiosity continues. Sometimes this curiosity leads to a career (生涯、职业) in science.
Scientists spend their lives trying to find out about the world.Those who work with the earth sciences study the earth, the oceans, and the skies. Other scientists who study living things work with the biological sciences. A third group of scientists study the physical sciences, e. g. physics, chemistry .
These scientists have already discovered a lot about our world.For example, they tell us why your heart beats fast when you run. They say that when you are quiet, your heart normally beats sixty-five or seventy-five times a minute. Your heart is a pump (泵) that pumps blood to all parts of the body. The blood carries oxygen and nutrition. When you run, your muscles work very hard and use the nutrition that the blood carries to them. The muscles need oxygen, too . So your brain sends a signal to the heart. The signal means that the muscles need more nutrition and oxygen. Then the heart beats fast and sends blood quickly to the muscles. It may beat 90 to 140 times a minute.
Of course, scientists cannot answer all of our questions. If we ask, “Why does the ocean water taste salty” scientists will say that the salt comes from rocks. When a rock gets very hot or very cold, it cracks. Rain falls into cracks. The rain then carries the salt into the earth and into the rivers. The rivers carry the salt into the ocean. But then we ask , “What happens to the salt in the ocean? The ocean does not get saltier every year.” Scientists are not sure about the answer to this question.
We know a lot about our world, but there are still many answers that we do not have, and we are curious.
45.According to the passage, which of the following statements is true?
A.People are curious in the same way.
B.People in different countries are interested in different things.
C.Men and women are curious about different things.
D.People of different ages are interested in different things
46.Scientists who work with the biological sciences study____.
A.the earth , the oceans and the sky B.man-made things
C.plants and animals D.ocean water
47.When you run, your muscles need ____.
A.more nutrition and oxygen B.more signals C.more salt D.water
48.A rock cracks _____.
A.in wet regions B.in dry regions
C.at very high or very low temperatures D.when salty water falls in
45 ---48 DCAC
【解析】略
Lily,Susan, David, Chris和Michael分别计划假期去景点旅游,阅读下面旅游杂志上的6个旅游广告(A、B、C、D、E和F),从中找出符合5位兴趣爱好的最佳选项,选项中有一项是多余选项。
1. David:I like a relaxed and simple lifestyle.
2. Lily:I enjoy shopping, dining and nightlife. I want to surf and learn about Hawaiian culture.
3. Susan:I like a relaxed lifestyle. I want to take a scenic helicopter and watch the amazing eruptions( 火山喷发) of red-hot lava.
4.Chris:I like surfing and mountain-climbing and enjoy shopping, dining and nightlife.
5. Michael:I love outdoor activities and want to take a scenic helicopter.
A Oahu Island – the gathering place Home to 80 per cent of Hawaii’s people, Oahu lets you enjoy the bustling and colourful city life of Honolulu, and world-famous Waikiki beach. Glamorous Waikiki is the main place for sun and surf. Otherwise go swimming, snorkeling, or relax and sunbathe on the many other fabulous beaches. Oahu is the place to be for shopping, great dining and great nightlife! But if nightclubs aren’t your scene, you may like to visit the museum at Pearl Harbour, or climb Nuuanu Oali mountain to find the best view of the whole island. |
B Hawaii – the big island Hawaii is also the name of the biggest island of the group. If you’d like a more relaxed lifestyle with friendly locals, then the Big Island has plenty of room for you. Take a helicopter ride around snow-capped Manna Kea, the highest mountain in the world if you measure from the ocean floor. Or visit Kilauea, the world’s largest active volcano(活火山). Hawaii’s dramatic black lava landscape even include beaches with black sand. |
C Kauai – the garden island Small and uncrowded, Kauai is the perfect gateway for families and couples looking for a peaceful holiday. It has world-class golf courses, with great views! This island is ideal for those who love outdoor activities. The beautiful green Na Pali cliffs and coast are a great place to go camping, hiking and horse riding. You can go kayaking on the river, or take scenic helicopter flights. |
D Maui – the rainbow island Maui combines beautiful scenery with luxury resort-style living. No matter where you stay, you’ll see many wonderful rainbows. Of course there are the lovely beaches for snorkeling, surfing and whale watching, but you can also hike up Haleakala, the world’s largest inactive volcano. The town of Lahaina offers a lu’au - a fun evening of hula dancing and traditional banquet. It isn’t as busy as Waikiki, but there are still plenty of shopping, fine restaurants and nightlife. |
E Lanai – Hawaii’s best-kept secret Far away from the crowds, this island offers you a totally relaxing experience. It is a haven for all kinds of wildlife. You can go fishing on the deserted beaches, or just laze there. Maybe you can climb Lanaihale mountain. From the top you can see all the other islands. |
F Molokai – very different The lifestyle here lets you understand the way Hawaii was many years ago. If you’re looking for a total escape from a busy city life, this is definitely the place. Forget shopping, fancy dining and nightlife. Let a guide bring you on a horseback or bicycle tour of the rugged but beautiful scenery. Hike over the stunning cliffs of the Kalaupapa peninsula. The most important thing to do on Molokai, though, is relax and slow down. |