At night, bats fly through the air, catching hundreds of insects and other small animals. But during the day, they hardly move at all. Instead, bats pass the time hanging upside down from a secret spot.
There are a couple of reasons why bats rest this way. First of all, it puts them in a position for takeoff. Unlike birds, bats can’t fly into the air from the ground. Their wings don’t produce enough lift to take off from a dead stop, and their hind legs are so small and underdeveloped that they can’t run to build up the necessary takeoff speed. Instead, they use their front claws to climb to a high spot, and then fall into flight.
During the hours when most enemies are active, bats gather where few animals would think to look and most can’t reach. This allows them to disappear from the world until night comes again. There’s also little competition for these resting spots, as other flying animals don’t have the ability to hang upside down.
Bats have a unique physiological adaptation that lets them hang around this way without using any energy. For you to hold your fist around an object tight, you contract（緊縮）several muscles in your arm, which are connected to your fingers by tendons（腱）；as one muscle contracts, it pulls a tendon, which pulls one of your fingers closed. A bat’s talons（爪）close in the same way, except that their tendons are connected only to the upper body, not to a muscle. To hang upside down, a bat pulls its claws open with other muscles. To get the talons to take hold of the surface, the bat simply lets its body relax. The weight of the upper body pulls down on the tendons connected to the talons, causing them to hold tight. Therefore, the bat doesn’t have to do anything to hang upside down.
小題1:Bats hang upside down because________．
A．they haven’t developed a pair of strong clawsB．they can’t start to fly from the ground directly
C．they have no hind legs to support their bodyD．they can’t find quiet places to stay during the day
小題2:The third paragraph tells us that bats’ hanging upside down_______.
A．is to save their energy for night movementB．is a way to fight against flying animals
C．is a great way to hide from dangerD．is a skill to compete for the flying places
小題3:Why can bats hang upside down easily?
A．Because their upper body is light.
B．Because they have strong muscles.
C．Because their talons are linked to muscles tightly.
D．Because their tendons are linked to their upper body.
小題4: What is the passage mainly about?
A．The living habits of bats.B．How and why bats hang upside down.
C．The importance of bats’ hanging upside down.D．How bats use their energy at night.

小題1:B
小題1:C
小題1:D
小題1:B
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科目：高中英語 來源：不詳 題型：閱讀理解

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科目：高中英語 來源：不詳 題型：閱讀理解

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Herpin died at the age of 94.
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A．treat him for his illness
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D．help him to have a rest in some day.
小題2:After watching him closely, the doctors came to believe that Al Herpin ________.
A．needed some kind of sleep.
B．needed no sleep at all.
C．was too old to need any sleep.
D．often slept in a chair.
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科目：高中英語 來源：不詳 題型：完形填空

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[6]Some people, however, don't support a later start time because they say that it would limit the time for practicing sports after school. However, the Minnesota schools found that this did not hurt school sports competitions.
[7]More American school districts are discussing the possibility of changing high school start times. Researchers and teenagers say that they cannot make the change quickly enough.
1  What is the best title of the passage? (Please answer within 8 words.)
                                                                          
2 Please fill in the blank in the fifth paragraph with proper words or phrases to complete the sentence. (Please answer within 8 words.)
                                                                          
3 Complete the following statement with proper words.(Please answer within 5 words)
If they go to bed very late at night, teenagers ___________ early in the morning.
                                                                      
4  Do you think the change is necessary? Why? (Please answer within 15 words.)
                                                                                  
5  What does the word “this”(line 3, paragraph 6) probably refer to?（no more than 4words）
                                                                             

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