5、twoappletrees.但注意amanteacher→twomenteachers.二、冠词类7.We can have_____ blueskyifwecreate_____lesspollutedworld.(苏州2010)A.a; a B.a; theC.the; a D.the; the解析:选A.此题容易误选C,D.根据句意:如果我们创造一个没有污染的世界,那么我们就用一个蓝色的天空。8.—Areyou________Amer
6、icanorEnglish?—English..WeareworkinginWuhu.(芜湖10)A.a B. C.the D.an解析:选B此题容易误选D.句中American是形容词而非名词,如果句中改为Areyou__________oranEnglishman?就选择D.9.—Whynottake____umbrellawiththesign“MadeinChina”? Itis _____useful u
7、mbrella?—What_______goodadviceitis!A.an;an;a B.an;a;C. a; an; a D.;an;a解析:选B.大多数学生容易做错此题。记住an用在元音音素前而不是元音字母前,记住了这一点就知道了anumbrella和a useful umbrella.在最后一句中advice是不可数名词,前面不能接不定冠词。故选择B10.Youshouldput_____“s”attheendofthisword.A.aB./C.anD.t