题目列表(包括答案和解析)
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| A.A baseball hat and light-colored clothes. |
| B.A baseball hat and dark-colored clothes. |
| C.A sun hat and light-colored clothes. |
| D.A sun hat and dark-colored clothes. |
| A.On your ears and neck. | B.Around your eyes and eyelids. |
| C.On dry skin. | D.On darker skin. |
| A.Use a little and often | B.Use a lot, two or three times a day. |
| C.Use a lot every two hours. | D.Use a little every two hours. |
| A.You can drink more water. |
| B.It improves dry skin. |
| C.It’s a chance to wear cool sunglasses. |
| D.It helps keep your skin and bones healthy. |
| A.Sun cream is usually very expensive. |
| B.Black people don’t need sun cream. |
| C.Sun cream reduces the risk of skin cancer. |
| D.Sun cream starts to work immediately. |
Short and shy, Ben Saunders was the last kid in his class picked for any sports team. "Football, tennis Cricket — anything with a round ball, I was useless." he says now with a laugh. But back then he was the object of jokes in school gym classes in England’s rural Devonshire.
It was a mountain bike he received for his 15th birthday that changed him. At first the teen went biking alone in a nearby forest. Then he began to cycle along with a runner friend. Gradually, Saunders set his mind building up his body, increasing his speed, strength and endurance. At age 18, he ran his first marathon.
The following year, he met John Ridgway, who became famous in the 1960s for rowing an open boat across the Atlantic Ocean. Saunders was hired as an instructor at Ridgway’s school of Adventure in Scotland, where he learned about the older man’s cold-water exploits (成就). Intrigued, Saunders read all he could about Arctic explorers and North Pole expeditions, then decided that this would be his future. Journeys to the Pole aren’t the usual holidays for British country boys, and many people dismissed his dream as fantasy. "John Ridgway was one of the few who didn’t say, ’You are completely crazy,’" Saunders says.
In 2001, after becoming a skilled skier, Saunders started his first long-distance expedition toward the North Pole. He suffered frostbite, had a closer encounter (遭遇) with a polar bear and pushed his body to the limit.
Saunders has since become the youngest person to ski alone to the North Pole, and he’s skied more of the Arctic by himself than any other Briton. His old playmates would not believe the transformation.
This October, Saunders, 27, heads south to explore from the coast of Antarctica to the South Pole and back, an 1800-mile journey that has never been completed on skis.
【小题1】The turning point in Saunders’ life came when ________.
| A.he started to play ball games |
| B.he got a mountain bike at age 15 |
| C.he ran his first marathon at age 18 |
| D.he started to receive Ridgway’s training |
| A.dismissed Saunders’ dream as fantasy |
| B.built up his body together with Saunders |
| C.hired Saunders for his cold-water experience |
| D.won his fame for his voyage across the Atlantic |
| A.He once worked at a school in Scotland. |
| B.He followed Ridgway to explore the North Pole. |
| C.He was chosen for the school sports team as a kid. |
| D.He was the first Briton to ski alone to the North Pole. |
| A.Excited | B.Convinced | C.Delighted | D.Fascinated |
| A.was accompanied by his old playmates |
| B.set a record in the North Pole expedition |
| C.was supported by other Arctic explorers |
| D.made him well-known in the 1960s |
Germs(细菌) are everywhere. You can’t see them, but they are on your desk, on your computer, and even in the air!
Like people, germs move around the world. They fly with us on planes. When food, clothes, and other things travel around the world, germs travel, too. Some germs are safe, but some are dangerous. Germs cause illnesses like colds and the flu.
Warmer Weather Brings Germs
The world’s weather is changing. Cooler countries are getting warmer, so insects from hot countries can move there. Some of these insects, like mosquitoes, carry dangerous germs. These germs cause headaches, fever, and can even kill people.
Under Your Skin
Your skin protects you from germs. It stops some germs, but not all. They can enter your body when you eat, or when you have a cut. Germs are on your hands, too. They enter your body when you touch your eyes, nose, or mouth.
Fighting Germs
Your immune system(免疫系统) protects you, too. When germs get inside your body, your immune system finds and kills them. Special cells(细胞) move around your body and fight germs. They help you stay healthy. Other cells make antibodies. Antibodies help your body find and stop germs.
What can you do to fight germs? You should wash your hands with soap and water. Soap kills many germs, and water washes them away.
【小题1】According to the text, insects ______.
| A.kill germs | B.carry germs | C.protect germs | D.love germs |
| A.cooler countries | B.hot countries | C.everywhere | D.the world |
| A.All germs are dangerous. | B.There are more germs in cold places. |
| C.Soap can kill all germs. | D.Germs can get into your body. |
| A.They kill germs and wash them away. | B.They find and develop germs. |
| C.They help protect us from germs. | D.They carry dangerous germs. |
| A.Germs Are Everywhere | B.Weather Is Changing |
| C.Skin Stops Germs | D.Germs Are Developed |
| A.Monday is the first day of a week | B.I just spend a happy weekend |
| C.Monday is the first school day of a week | D.I will have many lessons on Monday |
| A.I can play tennis with my friends | B.I have no homework to do |
| C.I have a P.E. class | D.I’m free |
| A.Monday | B.Tuesday | C.Wednesday | D.Friday |
| A.I get up late on Monday. | B.I visit my grandmother on Saturday. |
| C.I play tennis on Sunday. | D.I do some shopping at weekends. |
| A.doesn’t like school | B.likes to stay at home |
| C.only likes Friday | D.only likes Saturday |
Many companies use guards and expensive alarm systems to protect their property(财产)。 Soon a new kind of protection will be used- robots. Engineers have been working on the first mobile robots for businesses. The robots will patrol(巡逻) factories, warehoues(仓库),and museums at night.
The mobile robots will move around slowly on wheels. They will be able to detect people through walls and pick up sounds, such as breaking glass. They can be fixed with lound sirens(警笛) to frighten thieves, or radios to signal police or guards.
To protect a building, a robot will have to move around without knocking into the walls. Information about the building will have to be stored in the robot’s small, built-in computer. A floor map could be programmed into the computer’s memory, for example.
A mobile robot will not be able to do everything. Unlike human guards, it will not be able to climb stairs, open doors, or move along rough ground. It won’t be able to tell the difference between friends and enemies. Because of that, people will have to be barred from the area it patrols.
One kind of mobile robot will be able to “sense” whether a chair or box has been moved and go around it. This robot will also judge size well enough so that it won’t send an alam if a cat crosses the room. And if someone tries to steal this robot, it will sound a loud, painful siren. The three-foot-tall robot will be hard to steal anyway. It will weigh about 200 pounds.
U.S companies pay almost $10 billion a year to protect their property with alarm systems and human guards. Mobile robots may be cheaper.
【小题1】Why is the new kind of robots called mobile robots?
| A.Because they are able to climb stairs. | B.Because they are able to send an alarm |
| C.Because they can open doors. | D.Because they can move around slowly on wheels |
| A.From a human guard . | B.From a built- in computer. |
| C.From another robot . | D.From radio signals. |
| A.protected | B.allowed . | C.marked | D.prevented |
| A.sense whether something has been moved. | B.sense a cat crossing the room. |
| C.move over rough ground . | D.detect people through walls. |
| A.protect the museum | B.set off a siren . |
| C.judge the size of a person. | D.patrol buildings. |
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