【正文】 and several others missing. A. arewith，覆蓋；句子中的water 是不可數(shù)名詞，系動詞要用is，故選B。23．There are 300 students in Grade Nine. About B.D.a million25．Leonard was born in _______ in Los Angles. Last year, he won his ________Oscar in the 88th Academy Awards. A.B.C.D.one fourth四分之三用three fourths或者three quarters，故選D。two thirdsthe number of...謂語動詞單三式，a number of...謂語動詞復數(shù)形式，根據(jù)is排除C和D選項，one fourth，固定搭配，4分之1，分子用基數(shù)詞分母用序數(shù)詞 ， 故選B。因為teacher是單數(shù)，因此不是五位老師，是第五位老師，應使用序數(shù)詞，故答案是B。主意結(jié)合語境思考問題并解決問題。threemillions of【答案】 A 【解析】【分析】句意：這個城市市民總數(shù)今年已經(jīng)增長到了四百萬。as many cars as three rimesD. are【答案】 B 【解析】【分析】句意：地球的四分之三被水覆蓋，但是我們的淡水資源越來越少。C.hundreds of15．There are Two thirds注意hundred和數(shù)字連用時用單數(shù)。hundred。B.seventy根據(jù) Grain Rain often starts in April ，可知四月份是一年中的第四個月，要用序數(shù)詞fourth，故選B。注意twelfth的書寫。星期五是一周的第六天，因此使用sixth，故答案是B。fivefirst，最初的，形容詞，the first+基數(shù)詞，表示前幾個，故選D。the twenty centuryfifth 【點評】考查序數(shù)詞用法，注意平時識記the+序數(shù)詞+floor。 million，人口，故選B。first12．Two ________ students ________ to the opening ceremony last Friday. A.s got ______________ them. A.17．Li Hua is going to be an elder brother. His parents are planning to have their ________child. A.two【答案】 B 【解析】【分析】句意：李華要當哥哥了，他的父母計劃生二胎。twice as many asmore than twice，表示數(shù)量，放在as … as結(jié)構(gòu)前，是……的兩倍多，故選D。 【點評】考查數(shù)詞， 注意數(shù)字的復數(shù)形式dozens of，幾十的用法。 【點評】考查分數(shù)的表示方法。26．—How many American students came to visit your school yesterday? — Ten. Seven are from New York, and the other _____ are from Boston.A.C.The number，first fourthB.B.考查分數(shù)的寫法，用英語表達分數(shù)時，分子使用基數(shù)詞，分母使用序數(shù)詞，如果分子不是一，分母使用復數(shù)形式。third fourthsD. 【點評】考查分數(shù)的寫法，注意用英語表達分數(shù)，分子使用基數(shù)詞，分母使用序數(shù)詞，如果分子不是一，分母是用復數(shù)形式。A number，one secondD.24．The total number of the citizens in the city has increased to over four _________ this year. A.threefourth。dozen of20．A crowded floating restaurant boat loaded withThree fourths【答案】 D 【解析】【分析