题目内容
19．在过去的几年里，西宁发生了巨大的变化．Great changes havetakenplacein Xining in the past several years．
分析 taken place
解答 答案：taken place 对比中英文句子，发现英文句子缺失"发生"的表达；根据汉语意思可知此句是指过去西宁发生的变化对于现在造成的影响，结合英语句子中的关键词have可知此句应用现在完成时去表达；其构成是have/has+过去分词；根据设空的数量可知"发生"应用固定动词短语take place，take的过去分词为taken．注意take place无被动语态．故填写：taken place
点评 此题考查时态及固定短语的综合运用．做题时联系语境及关键词先确定出时态；再结合句意确定出所使用的固定短语；最后套用时态的结构即可写出正确答案．
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9．
Rob Howes wanted to spend a day at the beach．He（16）Ahis daughter Nicky and her two friends，Helen Slade and Karina Cooper．They all went to Ocean Beach in New Zealand，where Howes was a lifeguard．
The group swam and bodysurfed．Then they saw something（17）C．"Suddenly，there are these fins，"said Howes．
The（18）Dsaw seven dolphins moving towards them．The dolphins seemed worried．They（19）Bthe water with their tails．They kept moving in a circle around the swimmers．Then one large dolphin swam towards Howes and Helen．Next，it dived（潜水） down underwater．That's when Howes saw something grey moving in the（20）D．
A great white shark（21）Aunderwater．It wasn't far from the people．The shark headed straight towards Nicky and Karina．Now the shark was not slow．It moved（22）B!So the dolphins used their tails to swim even faster．Each one splashed its tail even more．Then Howes knew （23）Cthe dolphins did so．The dolphins didn't want to（24）Chim and the girls．These sea mammals（哺乳动物） wanted to keep them safe．
The dolphins stayed close to the group （25）Athe shark left．When Howes and the kids were safe，the dolphins swam away．
"You want to say thank you and shake their flippers，"Howes said．This isn't a fishy tale!These dolphins are heroes．
Rob Howes wanted to spend a day at the beach．He（16）Ahis daughter Nicky and her two friends，Helen Slade and Karina Cooper．They all went to Ocean Beach in New Zealand，where Howes was a lifeguard．The group swam and bodysurfed．Then they saw something（17）C．"Suddenly，there are these fins，"said Howes．
The（18）Dsaw seven dolphins moving towards them．The dolphins seemed worried．They（19）Bthe water with their tails．They kept moving in a circle around the swimmers．Then one large dolphin swam towards Howes and Helen．Next，it dived（潜水） down underwater．That's when Howes saw something grey moving in the（20）D．
A great white shark（21）Aunderwater．It wasn't far from the people．The shark headed straight towards Nicky and Karina．Now the shark was not slow．It moved（22）B!So the dolphins used their tails to swim even faster．Each one splashed its tail even more．Then Howes knew （23）Cthe dolphins did so．The dolphins didn't want to（24）Chim and the girls．These sea mammals（哺乳动物） wanted to keep them safe．
The dolphins stayed close to the group （25）Athe shark left．When Howes and the kids were safe，the dolphins swam away．
"You want to say thank you and shake their flippers，"Howes said．This isn't a fishy tale!These dolphins are heroes．
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| 17．A．broken | B．common | C．strange | D．polluted |
| 18．A．trainers | B．coaches | C．fishermen | D．swimmers |
| 19．A．held | B．hit | C．cleaned | D．provided |
| 20．A．pool | B．air | C．island | D．water |
| 21．A．waited | B．washed | C．grew | D．served |
| 22．A．beautifully | B．fast | C．heavily | D．away |
| 23．A．where | B．what | C．why | D．whether |
| 24．A．play | B．trust | C．harm | D．protect |
| 25．A．until | B．because | C．if | D．since． |
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| A． | can | B． | should | C． | must | D． | will |
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