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, is B.a(chǎn)re, are C.a(chǎn)re , is【答案】A【解析】句意:——這雙鞋多少錢?——二十美元足夠了。the pair of修飾名詞,謂語用單數(shù),故第一空用is。表示時(shí)間,距離,金錢時(shí),看成一個(gè)整體,謂語用單數(shù),故第二空用is,故選A。25.600 dollars a month ________ not enough to live on.A.a(chǎn)re B.is C.have【答案】B【解析】句意:每月600美元不足以維持生活。enough足夠的,形容詞,和be動(dòng)詞一起做表語, be enough to do:足夠做某事;時(shí)間,距離和金錢做主語時(shí),謂語動(dòng)詞用單數(shù)形式,本句主語600 dollars a month是金錢,可知選B。26.Kangkang as well as his parents return hometown this weekend.A.is ready to B.were ready to C.a(chǎn)re ready to【答案】A【解析】句意:康康和他的父母準(zhǔn)備這個(gè)周末回家鄉(xiāng)。as well as連接并列主語,謂語根據(jù)第一個(gè)主語來判斷,第一個(gè)主語Kangkang是第三人稱單數(shù),故謂語用第三人稱單數(shù)is ready to,故選A。27.The notice on the board tells us that _______ smoking ____ spitting is allowed in the waiting room.A.either。or B.not only。but also C.neither。nor D.both。and【答案】C【解析】句意:黑板上的通知告訴我們,在等候室即允許吸煙也不允許吐痰。本題考查連詞。A. either。or或者…或者…;B. not only。but also不但…而且…;C. neither。nor既不…也不…;D. both。and兩只都。根據(jù)句意“黑板上的通知告訴我們,在等候室即允許吸煙也不允許吐痰”,結(jié)合選項(xiàng),可知C選項(xiàng)符合題意,故答案選C。28.Oh! Jennifer with her parents _________ dinner there.A.is having B.a(chǎn)re having C.have【答案】A【解析】句意:哦!珍妮和她的父母在那里吃晚飯。with連接并列主語,謂語根據(jù)第一個(gè)主語來判斷,因?yàn)橹髡ZJenny是第三人稱單數(shù),故謂語用第三人稱單數(shù),故選A。29.Where is Mr. Wang?He together with his students _______ Haibin Park.A.have gone to B.has gone to C.has been to D.have been to【答案】B【解析】【詳解】句意“王先生去哪里了?他和他的學(xué)生去了海濱公園”。have been to去了某地(回來了),have gone to去了某地(還未回來),根據(jù)Where is Mr. Wang可知,還未回來,排除C和D。且當(dāng)together with連接兩個(gè)主語時(shí),謂語動(dòng)詞要和最前面的主語保持一致,故選B。【點(diǎn)睛】主語后有with, along, like, except, besides, but, including, together with, as well as等引導(dǎo)的名詞或代詞時(shí),謂語動(dòng)詞與前面的主語保持一致,即“就前原則”。30.Either the students or the teacher him very well.A.knows B.to know C.know D.knew【答案】A【解析】【詳解】句意:要么那些學(xué)生要么那位老師很了解他。A. knows動(dòng)詞三單式;B. to know動(dòng)詞不定式;C. know動(dòng)詞原形;D. knew動(dòng)詞過去式。either…or…連接兩個(gè)并列主語時(shí),遵循就近原則。此句中的謂語動(dòng)詞要與the teacher保持一致,故答案為A。