There are nearly 400 different types of sharks, but only about 30 types have even been reported as attacking human beings.
The chances of being attacked by a shark are very small compared to other dangers. Many more people drown(溺死)in the ocean every year than are bitten by sharks. The low number of attacks that happen every year proves that sharks do not feed on humans if they have the choice. There are three types of shark attacks. The main one is known as a ‘hit and run’. The shark attacks because it thinks you are a fish, but when it tastes a human it decides not to eat you. The second type is called a ‘bump and bite’. The shark bumps you to find out if you are fit to be eaten and then bites you if it thinks you are. The third type is called a ‘sneak’. When attacking in this way, the shark waits for you to swim by and attacks you suddenly. The latter(后者的)two types of attack are more likely to be deadly for humans.
However, your chances of being attacked by a shark can be reduced if you follow the advice below.
Do not swim in the dark. Sharks can still see you but you cannot see them.
Do not swim if you are cut or if you have a fresh wound. Sharks can smell blood over a long distance.
Do not wear bright clothing or jewellery because sharks are attracted to colours and shiny objects.
Try and stay in groups, as sharks usually avoid large numbers of people.
Don’t be frightened(受惊吓)by sharks as there is 30 times greater chance of being hit by lightning than being attacked by a shark.
【小题1】Are there only 30 types of sharks in the world?
【小题2】Are the chances of being attacked by a shark small or big compared to other dangers?
【小题3】What are the two deadly shark attacks called?
【小题4】Why should you try and stay in groups to avoid the shark attack?
【小题5】What does the writer mainly tell us in the passage?

Steven Jobs, the CEO of Apple, was not a good student when he was in school. At that time, he always got into trouble with his schoolmates. When he went to college, he didn’t change a lot. Then he dropped out(退学). But he was full of new ideas.

 After that, Steven Jobs worked as a video game designer in a company. He worked there only for a few months and then he went to India. He hoped that the trip would give him some new ideas and a new chance to change his life.

Steven Jobs lived on a farm in California for a year after he returned from India. In 1975, he began to make a new type of computer. He designed the first Apple Computer with his friend in his garage. He chose the name“Apple”just because it reminded him of a happy summer he once  spent in an apple orchard.

His first Apple Computer was a great success. Because of this, Steven Jobs soon became famous all over the world.

1.Steven Jobs always got into trouble with          in school.

A. his schoolmates     B. his parents       C. his teachers         D.his brothers

2.Steven Jobs designed the first Apple Computer with his friend      .

A. in his school    B. in his company          C. in his garage     D. at home

3.Which of the following statements is NOT true?

A. Steven Jobs didn’t finish his college.

B. Steven Jobs worked as a video game designer in a company for a few months.

C. Steven Jobs soon became famous all over the world because of his first Apple Computer.

D. Steven Jobs chose the name“Apple”just because he liked eating apples.

 

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