题目内容
8．好司机吴斌重伤后尽了最大努力安全停车．The great driver，Wu Bintried to stop the bus safely after he was badly hurt．
分析 根据汉语句意，该句中缺少"尽了最大努力，try to do sth．"的表达．
解答 该题考查学生对固定短语的掌握；根据句意，该句中缺少"最大努力"的英文表达；尽力做某事，try to do sth；根据从句中的was可知该句为一般过去时态，故填tried．
点评 根据单词的英文释义，结合句意和语法要求运用其适当形式作出正确解答．
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41．Food chains suggest thatC．
A．every life needs food．
B．plants are very important
C．no living thing can live alone．
D．living things need different food．
42．From the text we can learn that the sunC．
A．forms a food chain
B．makes animals to grow fast
C．is the beginning of food chains
D．is directly giving us different food
43．What do plants need to grow up？B
A．a；b；c；d
B．b；c；d；e
C．a；b；d；e
D．a；c；d；e
44．Which can change the sun's energy into food？A
A．Plants
B．Humans
C．Plant-eating animals
D．Meat-eating animals
45．The writer is trying to tell us not toB．
A．kill animals．
B．break the links of life．
C．worry about food chains．
D．eat fish from polluted water．
All life needs sunlight to live on．But only plants can use sunlight directly．Plants are"factories"．They make food from sunlight，water and things in the soil and air．
Plants feed all over living thing．Animals can only use the sun's energy （能力） after it has been changed into food by plants，some animals feed directly on plants，other eat smaller animals．Meat-eating animals are only eating plants indirectly．
What about human beings？We are members of any food chain．We eat ice，vegetables，fruits and so on．We also eat meat．But men often break up the food chain．They kill wild animals．They also make rivers，lakes and seas dirty．When these river，lakes and seas are polluted，the fish in then cannot be eaten．If men eat the fish，they will get strange disease．
Each form of life is linked（联系） to all others．Breaking the links puts all life in danger．
41．Food chains suggest thatC．
A．every life needs food．
B．plants are very important
C．no living thing can live alone．
D．living things need different food．
42．From the text we can learn that the sunC．
A．forms a food chain
B．makes animals to grow fast
C．is the beginning of food chains
D．is directly giving us different food
43．What do plants need to grow up？B
| a．living things b．soil c．water d．sunlight e．things in the air |
B．b；c；d；e
C．a；b；d；e
D．a；c；d；e
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A．Plants
B．Humans
C．Plant-eating animals
D．Meat-eating animals
45．The writer is trying to tell us not toB．
A．kill animals．
B．break the links of life．
C．worry about food chains．
D．eat fish from polluted water．