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定冠詞可知,定冠詞后是序數(shù)詞,故選A。【點評】考查數(shù)詞,注意定冠詞后是序數(shù)詞的用法。13._______, when Marx was already _______, he found it was important to study the situation in Russia, so he began to learn Russian. A.In 1870s, in his fiftiesB.In 1870s, in fiftiesC.In the 1870s, in fiftiesD.In the 1870s, in his fifties【答案】 D 【解析】【分析】句意:在十九世紀七十年代,馬克思已經(jīng)五十歲了,他覺得研究俄國的形勢很重要,便開始學習俄語。in the 1870s十九世紀七十年代;in one39。s fifties在某人五十多歲時;故選D。 【點評】考查時代的表達方式和固定短語。掌握時代的表達方式。14._________ of the teachers are women in our school. A.Two thirdB.Two threesC.Two thirdsD.Two【答案】 C 【解析】【分析】句意:在我們學校三分之二的老師是女老師。表達分數(shù)時,分子用基數(shù)詞,分母用序數(shù)詞,分子大于1時,分母用復數(shù)。三分二,二是分子,所以用基數(shù)詞two,三是分母,所以用序數(shù)詞third,分子二大于一,所以分母third用復數(shù)thirds,所以三分之二用two thirds,故選C。 【點評】考查分數(shù)表達,注意平時識記其表達規(guī)則。15.Two ________ students ________ to the opening ceremony last Friday. A.hundreds。 were invitedB.hundred。 were invitedC.hundreds of。 invitedD.hundred of。 invited【答案】 B 【解析】【分析】句意: 兩百名學生被邀請參加了上周五的開幕式。hundred和數(shù)字連用用單數(shù),兩百是two hundred,學生和邀請之間是被動關(guān)系,用被動語態(tài),根據(jù)可知是一般過去時,所以用一般過去時的被動語態(tài),一般過去時的被動語態(tài)是was/were+及物動詞的過去分詞,students是復數(shù),用 were invited,故答案為B。 【點評】考查數(shù)詞和被動語態(tài)。注意hundred和數(shù)字連用時用單數(shù)。16.How to read 85, 626 in English? A.eightyfive thousands, six hundreds and twentysixB.eightyfive thousand, six hundred and twentysixC.fiftyeight thousand, six hundred and twentysixD.eightyfive thousands, six hundred and twentysix【答案】 B 【解析】【分析】句意:用英語怎樣讀85, 626?英語數(shù)學詞的讀法是:從右往左每三個數(shù)字是一組,用逗號隔開,從右往左第一個逗號讀hundred,百位和十 位間用and連接,所以讀作eightyfive thousand, six hundred and twentysix,故選B。 【點評】考查數(shù)學詞的讀法,注意平時識記其讀法規(guī)則。17.—____________of volunteers will be needed for the 2020 Olympic Games. —Let39。s go and____________ them., join, be a member of thousand, take part in, be in【答案】A 【解析】【分析】句意:——2020年奧運會將需要幾千名志愿者。——讓我們?nèi)ゼ尤胨麄儼?。thousands of,幾千,join sb,加入,和某人一起,故選A?!军c評】考查數(shù)詞,注意join sb的用法。18.In our class of the students girls. A.third fifths。 isB.third fifth。 areC.three fifth。 isD.three fifths。 are【答案】 D 【解析】【分析】句意:我們班五分之三的學生是女生。分數(shù)表達方式:分子要用基數(shù)詞,分母要用序數(shù)詞,當分子超過一時,分母后要加s。五分之三的正確表達是three fifths;帶有分數(shù)的短語作主語時,謂語動詞由分數(shù)后面的名詞形式來決定,students是復數(shù)形式,謂語動詞要用are,故選D。 【點評】考查分數(shù)的基本構(gòu)成。注意其作主語時謂語動詞形式的選擇。19.We throw rubbish every year.