阅读下面的短文，然后从每小题所给的A、B、C、D四个选项中，选出最佳选项．

    In the last passage we've already talked about some dangerous plants， but we don't want to give anyone the wrong idea． The truth is that some plants can hurt you， but most are completely harmless． In fact， there are plenty of plants that are actually very useful to humans．

    That is why plants are so popular in Chinese medicine． Chinese medicine has been using plants for at least 4，800 years． One of the most popular plants in Chinese medicine is ginseng（人参）．Doctors of Chinese medicine believe that ginseng can help your lungs （肺），clean your blood and do many other things．Ginseng also provides energy for people． In fact， many modern energy drinks that you see in stores have ginseng．

    In some parts of U．S.. there is a plant called lady fern （蹄盖蕨）．This is the plant you need if you've been stung by a bee， or if you've got a small burn or a cut． Lady ferns are great for making your skin feel better． All you have to do is roll one of its leaves and make it into pieces in your hands． The juice inside the leaf will help your skin feel better．

    If you're hiking in Europe， look for a flower called tansy（艾菊）．

    This yellow flower is a natural insects' enemy．You just rub it on your skin，and insects will leave you alone．

    Sage （鼠尾草） is one of the most useful plants in the world． Because it has so many uses，it's also quite valuable． Human beings have been using sage for a very long time． In Europe， before fridges appeared， people used sage to keep food． Over the years， people have used sage to fight all kinds of health problems． Sage has been used to treat colds， stop muscle （肌肉） problems and reduce （减少） swelling． In fact， sage comes from the Latin word " salvere "， which means"to be saved"．

（1）How many kinds of useful plants are mentioned in the passage？　　

A．2

B．3

C．4

D．5

（2）Which of the following about ginseng is NOT TRUE ？　　

A． It's still being used in Chinese medicine．

B． It can make people fell sleepy．

C． It can be found in many modern energy drinks．

D． It is helpful to our lungs and blood．

（3）Lady ferns can make your　　 feel better．

A． skin

B． muscle

C． burn

D． cut

（4）What does the passage say about sage？　　

A． It's the most useful plant in the world．

B． It hasn't been used by people for long．

C． It was once used to keep food in Europe．

D． Its name comes from a German word．

（5）What can be the best title for this passage？　　

A． How to Protect Plants

B． Some Harmful Plants

C． How to Grow Plants

D． Some Useful Plants

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