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1、不定冠词,不定冠词的基本用法:不定冠词的主要功用为“非特指”、“泛指”。即指某类人或物的任何一个或某个。它有意义相同的两个形式：a 和an, a 用于辅音前，读作; an 则用于元音前， 读作.1) 表示“一个”这个数量，意思和,“one”相当。如：Rome was not built in a day.罗马不是一天建成的。（谚语）Id like an apple.我想要一个苹果。A stitch in time saves nine.及时（缝）一针顶十针。（谚语）,这种用法在某些表示重量、长度、时间等的词中特别普遍。如：a pair of socks 一双袜子a hundred 一百two
2、yuan a metre 两元一米at a glance 一瞥eight hours a day 一天八小时。,twice a week 一周两次 a cup of coffee 一杯咖啡 a handful of rice 一把米 at a blow 一下子 at a stretch 一鼓作气 one at a time 每次一个 in a word 一言以蔽之,当用复数来表示时,则用some或any. 如: Id like some apples. I dont want any apples. 因此,当不定冠词强调数量概念时,some 和 any常被看作是a/an的复数形式. 2) “任
3、何一个,” 如: Pass me a pencil, please. 请递一支铅笔给我.(任何一支铅笔) 3) “某一个 ” 如: A man called you just now.,一个人刚刚给你打电话. She has just graduated from a Beijing university. 他刚从北京一所大学毕业. 4) “一类”. 此用法同定冠词表示类别的用法是一致的. A child needs love. 儿童需要爱.,The dog is mans best friend. 狗是人类最好的朋友. 另：有时序数词前也用不定冠词a或an，其 汉译为“再一次（一个）”。如：
4、 I lost the first two games, but I want to try a third. 前两盘我输了，但我想再试一盘。 5) a/an与one的区别: 不定冠词a/an强调数量概念时相当于one,二者可互相替换使用. eg: a/one hundred a/one third a/one dollar a/one metre 但是, a/an 与one之间也有区别,在许多情况下二者不能相互替换使用: a) one不能指“任何一个”.如: A knife is no good, you need a screwdriver to do the job properly.,
5、一把刀不行,你干这活需要一把螺丝刀合适. b) 当强调“只有一个时,”只能用one. 如: There is only one apple left, there were plenty in the morning. c) one 经常与day, week, month, year, summer, winter 等连用,用来讲故事或描述过去发生的事情. 如: One day, many years later, I found out what,had really happened. 许多年后的一天,我弄明白了真正发生的什么事情. One winter the snow fell ear
6、ly. 一年冬天雪下得早. 另外, one day 也可以表示“将来某一天”. .“总有一天.” 如:One day youll be sorry you treated him so badly. 总有一天,你会后悔, 你对待他是那样恶劣.,d) one 可以与another/others 连用,强调与“另一个(些)” “相对的一个.”如: One boy wanted to read, another/others wanted to watch TV . 一个男孩想读书,另一个/另一些想看电视.,Fill in the blanks with a, an or the (1)_ baby
7、 _ desk _bird_village _knife _useful book_university _zoo _driver (2) _orange _ear _ eye_animal _excuse _aunt_interesting story_ important meeting (3) in _ morning all over _ worldin _ south go to _ cinemaat _ same time in _ daytime (4) by _bus play _ basketballhave _ lunch in _ summer,a,a,a,a,a,a,a
8、,a,a,an,an,an,an,an,an,an,an,the,the,the,the,the,the,/,/,/,/,(5) We can see _ sun in the daytime, and we can see _ moon at night. (6) His father is _ English teacher. He works in _ middle school in Guangzhou. (7) Mr. Brown wants to buy _ house. He wantsto buy _ old house, not _ new one. (8) He has t
9、wo children, _ son and _daughter. _ son is _ soldier. _ daughter is _ doctor. (9) Winter is _ coldest season of the year. (10) _ Smiths are having supper. (11) On _ Childrens Day, they all went to _ park. (12) _ young like to help others.,the,the,an,a,a,an,a,a,a,The,a,The,a,the,The,the,The,/,Choose
10、the best answers. English is _ useful language.A. a B. an C. the2. There is _ “S” in the word “bus”.A. the B. an C. a 3. _ sun rises in _ east.A. An, a B. The, an C. The, the 4. Mr. King has arrived in _ China. Hes going to visit _ Great Wall.A. X, X B. the, an C. X, the 5. Is _ your favourite sport
11、?A. a football B. football C. the football 6. This picture is _ most beautiful of all.A. the B. a c. X,A,B,C,C,B,A,7. Beijing is _ old city. Its _ capital of China.A. the, the B. an, a C. an, the 8. Take _ third turning on _ left.A. the, a B. X, the C. the, the 9. On _ Sundays I stay in _ bed till eight.A. a, a B. the, a C. X, X 10. _ Browns have been to China twice.A. X B. A C. The 11. Yesterday I went town _.A. by a bus B. by bus C. by buses 12. _ bike near _ tree is mine.A. A, a B. The, a C. The, the,
