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?

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.

1. 1.

   Are there only 30 types of sharks in the world?

2. 2.

   Are the chances of being attacked by a shark small or big compared to other dangers?

3. 3.

   What are the two deadly shark attacks called?

4. 4.

   Why should you try and stay in groups to avoid the shark attack?

5. 5.

   What does the writer mainly tell us in the passage?

阅读下面短文，根据上下文及所给的首字母提示，填入一个适当的词，使短文意思完整，并将完整的单词填写在答题卡相应的位置上。

What are you going to do if you are in a burning house? Do you know how to 1. yourself? Please read the following passage.

Knowing what to do during a fire can save your life. It's important to know the right way to escape (逃跑), such  2.exits and stairways, but not lifts(电梯).

From the lower floors of buildings, escaping from the windows is 3.. Leaving from windows may get the least chance of being hurt. When you are on the second floor, it's usually not high from the ground. It's about the       4. of an adult. It's safer to        5.out of the house than to stay in it.

It's important to protect (保护) yourself when you' re  6. for help. Be sure to keep the door closed. If you don't do that,    7. may come into the room where you are. It's harmful to you. In that condition, you had          8.keep your head low to make sure that you can breathe fresh air rather than smoke.

If you are on high floors, you can go     9.till the roof. You can try your best to attract people's attention. Don't shout            10.the time because you need to save energy and wait for rescue(救援).