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0。B.to saveC.savesD.saved【答案】 B 【解析】【分析】句意:世界自然基金會(huì)正努力工作來拯救處于危險(xiǎn)中的動(dòng)物。此處表示目的,應(yīng)該用動(dòng)詞不定式。故選B。【點(diǎn)評(píng)】考查動(dòng)詞不定式。動(dòng)詞不定式表示目的。14.We advise parents _____ their children at home alone in order to keep them away from danger.A.not leaveB.not to leaveC.leaveD.to leave【答案】 B 【解析】【分析】句意:為了使孩子遠(yuǎn)離危險(xiǎn),我們建議父母不要單獨(dú)把孩子留在家里。advise sb to do sth建議某人做某事,動(dòng)詞不定式的否定形式就是在to前面加not故advise sb not to do sth建議某人不要做某事。結(jié)合句意,故選B15.It is necessary for us students _____ the listening ability. A.to improveB.improvingC.improveD.improves【答案】A 【解析】【分析】句意:對(duì)于我們學(xué)生來說提高聽力能力是有必要的。it39。s +形容詞+for sb to do sth 做某事對(duì)于某人來說怎么樣 ,故答案為A?!军c(diǎn)評(píng)】考查不定式。掌握固定搭配it39。s +形容詞+for sb to do sth。16.—What should I do, doctor?— healthy, you should do more exercise.A.KeepB.KeepingC.To keepD.Having kept【答案】 C 【解析】【分析】句意:醫(yī)生,我該怎么做?要保持健康,你應(yīng)該多鍛煉。表示目的,應(yīng)用不定式,故答案為C?!军c(diǎn)評(píng)】考查不定式作目的狀語。17.Sue practices ______ the violin hard and often gives wonderful performances. A.playB.playedC.to playD.playing【答案】 D 【解析】【分析】句意:Sue努力練習(xí)拉小提琴并經(jīng)常做精彩演出。Practise doing ?!军c(diǎn)評(píng)】考查動(dòng)名詞的用法,掌握practice doing結(jié)構(gòu)。18.—Do you have any plans for the holiday? —Yes, I39。m planning to travel to Jiuzhaigou. I39。m looking forward to the colourful lakesand amazing waterfalls.A.seeB.seeingC.seesD.saw【答案】 B 【解析】【分析】句意:——你有度假的計(jì)劃嗎?——是的,我打算去九寨溝旅行。我期待著看到五顏六色的湖泊和令人驚嘆的瀑布。look forward to+名詞/代詞/動(dòng)名詞,期盼......,see動(dòng)詞,要用動(dòng)名詞形式seeing,故選B。