7．Great white sharks have become well known in a bad way，for being scary．（56）C．However，you are more likely to be hit by lightning than attacked by a great white shark．
One reason why people don't like great white sharks is that they are huge．They grow to be nearly 21feet long and can weigh up to 5，000pounds．That is about two cars long!But the size is not typical．Most great whites are smaller，about 10to 15feet long．（57）B．
Great whites are called apex predators（捕食者）because they are at the top of the food chain．They have no predators and aren't that picky about what they eat．Great whites are known to eat fish，squid，other sharks，otters，turtles，dolphins，whales，seals，and sea lions．（58）A．Great whites also eat carrion，which is the remains of dead animals floating（漂浮）in the water．
（59）E．They have 3，000teeth，and each is up to 3inches long!Their very sharp teeth are shaped like triangles and have rough edges that tear into things．Great whites don't even chew their food．They just swallow it down．（60）D．
But，like other sharks，great whites don't intentionally（主动地）eat or attack humans．So swim without fear．
One reason why people don't like great white sharks is that they are huge．They grow to be nearly 21feet long and can weigh up to 5，000pounds．That is about two cars long!But the size is not typical．Most great whites are smaller，about 10to 15feet long．（57）B．
Great whites are called apex predators（捕食者）because they are at the top of the food chain．They have no predators and aren't that picky about what they eat．Great whites are known to eat fish，squid，other sharks，otters，turtles，dolphins，whales，seals，and sea lions．（58）A．Great whites also eat carrion，which is the remains of dead animals floating（漂浮）in the water．
（59）E．They have 3，000teeth，and each is up to 3inches long!Their very sharp teeth are shaped like triangles and have rough edges that tear into things．Great whites don't even chew their food．They just swallow it down．（60）D．
But，like other sharks，great whites don't intentionally（主动地）eat or attack humans．So swim without fear．
| B．That's still longer than one car，though A．Those last two kinds are their favourite food C．Movies and popular stories make them scary D．A big meal can satisfy a great white shark for about two months E．Another reason why people fear great whites is their frightening teeth |
B．
C．
1．
Let's go to see a few more interesting Shanghai Expo pavilions （世博会展馆）!I'm sure you will have a good time．
USA Pavilion
There is a big waterfall （瀑布） at the entrance of the pavilion．It will cool you on a hot summer day．With a big 4D screen，you will be able to watch a movie called The Garden．It tells a story of a girl who works with her neighbors．They turn an empty city into a beautiful place．The 4D effects will bring you great surprise．
Spain Pavilion
The Spain Pavilion looks like a big basket．You may be able to see famous Spanish football players at the pavilion．If Spain wins the World Cup，the team will come to the pavilion．Cheer for Spain if you want to meet these stars!
Chile （智利） Pavilion
China and Chile are more than 10，000kilometers apart （相隔）．But if you dig an imaginary well （虚构的井） from China through the earth，you can reach Chile．So in the pavilion，you will see several real wells．Looking into them，you will see pictures of Chilean people's everyday lives．
SAIC-GM （通用汽车） Pavilion
What will the cars and roads look like in 2030？How will our lives have changed
at that time？You will be able to experience the future with modern technology there．
What are your hopes for the future？Write them down into a letter and put it into the
"space-time mailbox"at the pavilion．You'll be able to receive it 20years later!
任务型阅读：根据短文内容，填写下列表格．
0 117949 117957 117963 117967 117973 117975 117979 117985 117987 117993 117999 118003 118005 118009 118015 118017 118023 118027 118029 118033 118035 118039 118041 118043 118044 118045 118047 118048 118049 118051 118053 118057 118059 118063 118065 118069 118075 118077 118083 118087 118089 118093 118099 118105 118107 118113 118117 118119 118125 118129 118135 118143 159627
Let's go to see a few more interesting Shanghai Expo pavilions （世博会展馆）!I'm sure you will have a good time．USA Pavilion
There is a big waterfall （瀑布） at the entrance of the pavilion．It will cool you on a hot summer day．With a big 4D screen，you will be able to watch a movie called The Garden．It tells a story of a girl who works with her neighbors．They turn an empty city into a beautiful place．The 4D effects will bring you great surprise．
Spain Pavilion
The Spain Pavilion looks like a big basket．You may be able to see famous Spanish football players at the pavilion．If Spain wins the World Cup，the team will come to the pavilion．Cheer for Spain if you want to meet these stars!
Chile （智利） Pavilion
China and Chile are more than 10，000kilometers apart （相隔）．But if you dig an imaginary well （虚构的井） from China through the earth，you can reach Chile．So in the pavilion，you will see several real wells．Looking into them，you will see pictures of Chilean people's everyday lives．
SAIC-GM （通用汽车） Pavilion
What will the cars and roads look like in 2030？How will our lives have changed
at that time？You will be able to experience the future with modern technology there．
What are your hopes for the future？Write them down into a letter and put it into the
"space-time mailbox"at the pavilion．You'll be able to receive it 20years later!
任务型阅读：根据短文内容，填写下列表格．
| What to see in these interesting Shanghai Expo pavilions： | |
| USA Pavilion | You can watch a movie with a big （81）4D screen． |
| Spain Pavilion | It looks like a big （82）basket．You may be able to meet the Spanish football team if Spain wins the （83）World Cup． |
| Chile Pavilion | You can see pictures of Chilean people's everyday lives through several real （84）wells． |
| SAIC-GM Pavilion | You will be able to experience the （85）future with modern technology there．You can write a （86）letter about your hopes for the future and put it into the"space-time mailbox"． |
Do you know why you sleep？You may think it's because you're tired．Or perhaps you've been told sleep is good for you．Yet no one knows exactly why or how people sleep．