【正文】
land in that district is are is are【答案】 A 【解析】【分析】句意:在那片區(qū)域五分之二的土地被樹和草覆蓋著。注意分?jǐn)?shù)的表達(dá),分?jǐn)?shù)由基數(shù)詞和序數(shù)詞構(gòu)成,分子用基數(shù)詞,分母用序數(shù)詞,分子大于1時(shí),分母用復(fù)數(shù)。分?jǐn)?shù)的分子用基數(shù)詞,分母用序數(shù)詞,分子大于1時(shí),分母用復(fù)數(shù),因此四分之三, 【點(diǎn)評(píng)】考查分?jǐn)?shù)的表達(dá)方式。 whenB. untilD.數(shù)詞+hundred,幾百,用hundred 的單數(shù)形式,hundreds of,好幾百,不和數(shù)詞搭配,故排除B和D;進(jìn)入山谷和看見蝴蝶之間是并列關(guān)系,因此用when, 當(dāng)……時(shí),while表對(duì)比,until與not連用,if表假設(shè),均不符題意,故選A。thirtiesC.s+整十?dāng)?shù)的復(fù)數(shù),表示在某人幾十多歲時(shí)。fiftyfiftieths +基數(shù)詞復(fù)數(shù),在某人幾十多歲時(shí),in one39。s fifties。 five/。D.他說(shuō)這是他第五次到法國(guó)訪問(wèn)。28.—Dad, there are 45 students in our class, all boys wear glasses, ________ of the whole class. —Oh, that39。one thirdthree quarters【答案】 C 【解析】【分析】句意:——爸爸,我們班有45名學(xué)生,所有的男孩戴眼鏡,占班級(jí)的三分之二。根據(jù) thirty boys,可知是三分之二,因?yàn)橐话愕陌嗳萘渴?550名學(xué)生,故答案是C。表達(dá)確切數(shù)字時(shí)用基數(shù)詞+million,表示幾百萬(wàn);表達(dá)非確切數(shù)字時(shí)用millions of,數(shù)百萬(wàn),故選D。B.D.。數(shù)量詞作定語(yǔ)應(yīng)用連字符,并且量詞用單數(shù),故選B。C.30.______ should not be allowed to go out at night. A.D.C.B.29.Basketball is so exciting that ______ people play it for fun. A.你們?nèi)畟€(gè)男孩應(yīng)該保護(hù)好自己的眼睛。two thirdsone fourth 【點(diǎn)評(píng)】此題考查定語(yǔ)從句和序數(shù)詞。 fifth【答案】 A 【解析】【分析】句意:——你認(rèn)識(shí)那個(gè)三月分訪問(wèn)法國(guó)的人嗎?——是的。B.who。 【點(diǎn)評(píng)】此題考查數(shù)詞。fiftieths【答案】 B 【解析】【分析】句意:阿里巴巴的總裁馬云已經(jīng)決定在他50多歲從他的公司退休。fifties 【點(diǎn)評(píng)】考查整十?dāng)?shù)的復(fù)數(shù),注意整十?dāng)?shù)的復(fù)數(shù)的使用場(chǎng)合。the thirtieth【答案】 B 【解析】【分析】句意:政府的二胎政策放開后,她三十多歲生了二胎。25.After the government carried out the twochild policy, she had a second child in her________. A. if【答案】 A 【解析】【分析】句意:在云南省,有一個(gè)以蝴蝶聞名的山谷。C. while24.In Yunnan province, there is a valley famous for its butterflies. You will see over four _______kinds of butterflies flying around ________ you get into the valley. A.coveredthreefourths。threefourth。three fourths。threefourth。且land 作為集體名詞是不可數(shù)名詞,謂語(yǔ)應(yīng)用單數(shù)形式,所以用is,故選A。D.C.B.covered with trees and grass. A.表示確定數(shù)量要用thousand 的單數(shù),不能與介詞of 連用;表示不確定數(shù)量時(shí),要用復(fù)數(shù)形式,同時(shí)要在其后加介詞of,thousands of,后接可數(shù)名詞復(fù)數(shù)。C. seats to audience. A.two【答案】 B 【解析】【分析】句意:李華要當(dāng)哥哥了,他的父母計(jì)劃生二胎。20.L