【正文】 C.表示確切數(shù)字時用基數(shù)詞+thousand，表示非確切數(shù)字時用thousands of。B.B. 【點評】考查數(shù)詞，注意in the 1980s的用法。two threeyuan building a school for the children in that small village. A.17．Ten years ago the population of our village wasD. Two thirdC.13．—____________of volunteers will be needed for the 2020 Olympic Games. —Let39。B. 【點評】考查數(shù)詞，注意表示世紀和年齡的用法。11．Most of the doctors in this hospital were born ________, and they are ________now. A.thousand和of 連用時要用復數(shù)，thousands of，成千上萬的，固定短語，故選B。B.數(shù)詞后thousand用單數(shù)，thousands of，固定搭配，幾千個，不與數(shù)字搭配；因此是six thousand或者thousands of，只有B對，故選B。six thousands ofB.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。five three2．______ of the students in our school are boys. A.根據(jù)故選A。4．—How old is your daughter?— ______. We had a special party for her ______ birthday yesterday.A. ninthD.根據(jù)基數(shù)詞表示數(shù)量以及months是名詞復數(shù)可知，第一個空應填基數(shù)詞twelve；根據(jù)序數(shù)詞表示順序以及month是名詞單數(shù)可知，第二個空應用序數(shù)詞twelfth。hundred，百，其前接具體數(shù)詞時，用其單數(shù)形式，當其前沒有具體數(shù)字修飾時，用其復數(shù)形式，后和of連用，hundreds of，成百上千，根據(jù)two，基數(shù)詞，hundred用其單數(shù)形式，故選B。 in their fifties【答案】 D 【解析】【分析】句意： 這家醫(yī)院的大多數(shù)醫(yī)生都出生于20世紀70年代，現(xiàn)在他們都是50多歲。two hundred of【答案】 C 【解析】【分析】句意：從南昌到成都大約有兩百公里。 【點評】考查數(shù)詞，注意分數(shù)的用法。two millionsmillions of【答案】 D 【解析】【分析】句意：籃球是如此令人興奮以至于數(shù)百萬人為了玩樂而打它。C. of the work will soon be finished. A.1980, the firstthe 1980s, the first1980s, firstthe 1980s, first【答案】 D 【解析】【分析】句意：倫納德20世紀80年代出生于洛杉磯。s just 7:，故選C。twothird。23．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. while24．—How often do you go shopping with your sister? —________ a month.A.Twice 【點評】考查副詞，注意根據(jù)how often的語境選擇頻率副詞。Twelfth, fifth27．—Do you know the man ________ visited France in March? —Yes.