阅读理解

　　Do you know when people started to have Olympic mascots? Let's see about her story．The first appeared thirty-five years ago at the Munich Summer Games in 1972．What was it? Can you guess? Oh，it was Waldi，a colorful dog．In the past 28 Olympic Games，some hosts have had as many as three Olympic mascots．But this time，China has five! Do you know what they are? What do you mink of them? Which one do you like best? What do they look like?

　　Beibei

　　The fish stands for the blue Olympic ring．Among the five，she is known to be gentle and pure，strong in water sports．In China，fish and water mean harvest．So Beibei carries the blessing of prosperity (繁荣的祝福)．

　　Jingjing

　　The little panda stands for the black Olympic ring．He is childlike and outgoing．Jingjing is good at weight sports．His headdress means humans get on well with nature．

　　Huanhuan

　　The child of fire stands for the red Olympic ring．He is in the centre，the big brother of five．He carries the Olympic spirit．He is the most warm-heart-ed and outgoing of the five．He can do well in all ball games．

　　Yingying

　　The antelope stands for the yellow Olympic ring．Yingying is smart and moves quickly，like all antelopes．He is strong in track and field (田径) events．The antelope is one of the first animals put under protection in China．Choosing the antelope shows that China wants a green Olympics．

　　Nini

　　Nini stands for the green Olympic ring．She is as happy and lovely as the swallow．Nini is good at gymnastics (体操)．Her image comes from kite designs， an old art style in China．Nini's golden wings stand for the sky．She brings good luck wherever she flies．

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阅读理解，阅读下列内容，根据内容选择最佳答案。

　　CELL phones help us easily find people anywhere at any time．A cell phone can include many things, such as games, music and Internet access．Today, 4.6 billion people around the world have cell phones, according to CBS News．

　　However, cell phones may cause cancer(癌症), according to the World Health Organization．In a 2010 study, people who used a cell phone for 10 years or more were more than two times as likely to get cancer, according to CNN．

　　The following suggestions may help you reduce your risk of cancer：

　　1．Use a headset(头带式耳机)or speaker

　　Headsets give out much less radiation(辐射)than phones．Some wireless(无线的)headsets give out low-level radiation．However, you should take it off your ear when you’re not talking to anyone．Using your phone with a speaker will also make it safer．

　　2．Listen more, talk less

　　Your phone gives out radiation when you talk or text, but not when you’re listening or getting messages．Listening more and talking less can lower the risk of cancer．

　　3．Hold the phone away from your body

　　Hold the phone away from your body when you’re talking, not against your ear．Also, don't keep it in your pocket．

　　4．Choose texting over talking

　　Phones emit(发出)less radiation to send texts than to carry a person's voice．Texting also keeps radiation away from your head．

　　5．Poor signal? Stay off the phone

　　Fewer signal bars on your phone mean that the phone needs to give out more radiation to work．Make and take calls when your phone has a strong signal．

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阅读理解

　　CELL phones help us easily find people anywhere at any time．A cell phone can include many things, such as games, music and Internet access．Today, 4.6 billion people around the world have cell phones, according to CBS News．

　　However, cell phones may cause cancer(癌症), according to the World Health Organization．In a 2010 study, people who used a cell phone for 10 years or more were more than two times as likely to get cancer, according to CNN．

　　The following suggestions may help you reduce your risk of cancer：

　　1．Use a headset(头带式耳机)or speaker

　　Headsets give out much less radiation(辐射)than phones．Some wireless(无线的)headsets give out low-level radiation．However, you should take it off your ear when you're not talking to anyone．Using your phone with a speaker will also make it safer．

　　2．Listen more, talk less

　　Your phone gives out radiation when you talk or text, but not when you're listening or getting messages．Listening more and talking less can lower the risk of cancer．

　　3．Hold the phone away from your body

　　Hold the phone away from your body when you're talking, not against your ear．Also, don't keep it in your pocket．

　　4．Choose texting over talking

　　Phones emit(发出)less radiation to send texts than to carry a person's voice．Texting also keeps radiation away from your head．

　　5．Poor signal? Stay off the phone

　　Fewer signal bars on your phone mean that the phone needs to give out more radiation to work．Make and take calls when your phone has a strong signal．

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