《天津市大港區(qū)中考英語一輪復習 數(shù)詞課件》由會員分享，可在線閱讀，更多相關《天津市大港區(qū)中考英語一輪復習 數(shù)詞課件（8頁珍藏版）》請在裝配圖網(wǎng)上搜索。
1、數(shù)詞數(shù)詞復習復習數(shù)詞數(shù)詞的構成的構成基基數(shù)詞數(shù)詞序數(shù)詞序數(shù)詞112有各自獨立的形式。有各自獨立的形式。13-19都是相對應都是相對應39加上加上teen構成，特殊拼寫的構成，特殊拼寫的詞有詞有thirteen, fifteen, eighteen。2090都以都以-ty結尾，特殊拼寫的有結尾，特殊拼寫的有twenty, thirty,forty, eighty。2199,整數(shù)十位數(shù)各位數(shù)，中間有整數(shù)十位數(shù)各位數(shù)，中間有“”。百位數(shù)，由百位數(shù)百位數(shù)，由百位數(shù)and+兩位數(shù)組成。兩位數(shù)組成。13分別為分別為first,second,third 。419都是在后面加上都是在后面加上th,特殊的有特殊
2、的有fifth,eighth, ninth,twelfth。2090把把y變成變成ie然后加然后加th,如如twentieth。2199的序數(shù)詞變后面的各位數(shù)。的序數(shù)詞變后面的各位數(shù)。序數(shù)詞可以用縮寫，如序數(shù)詞可以用縮寫，如1st, 2nd, 3rd ,4th基本用法：基本用法：1.基數(shù)詞：表示精確數(shù)字時，基數(shù)詞：表示精確數(shù)字時，hundred,thousand,million,billion后面后面都不用變化。但是在表示幾百，幾千等模糊概念時，這些詞后面要都不用變化。但是在表示幾百，幾千等模糊概念時，這些詞后面要加上加上s和和of,如：如：hundreds of,而且前面可以加上而且前面可以
3、加上many,tens of等表示等表示不確切的詞，注意不確切的詞，注意several,some是表示確切數(shù)字的詞：是表示確切數(shù)字的詞：several hundred2.數(shù)詞一般是用作復數(shù)的，但是特殊情況也有復數(shù)的用法：數(shù)詞一般是用作復數(shù)的，但是特殊情況也有復數(shù)的用法：a.在表示一排或者一組的情況下：在表示一排或者一組的情況下：They arrived in twos and threes.b.表示幾十歲：表示幾十歲：the forties-41-49c.表示年代：表示年代：in the 1920s3.基數(shù)詞兼有名詞和形容詞的功能：基數(shù)詞兼有名詞和形容詞的功能：Nine of them are
4、 from Greece.They work forty hours a day.4.序數(shù)詞主要用作定語。一般要加序數(shù)詞主要用作定語。一般要加the.Our classroom is on the third floor.The first part of the story is not interesting.in the first place5.序數(shù)詞也可以用作副詞，序數(shù)詞也可以用作副詞，When did you first see him?Which horse came in first?6.基數(shù)詞也能表示順序，如書刊的卷、章、節(jié)、頁的數(shù)目，住所、基數(shù)詞也能表示順序，如書刊的卷、章
5、、節(jié)、頁的數(shù)目，住所、房間、教室、電話號碼等等。房間、教室、電話號碼等等。Volume Two, Chapter Four, Section Six, Page Eight, Room 3047.倍數(shù)的表示法倍數(shù)的表示法a. 倍數(shù)（或分數(shù)）倍數(shù)（或分數(shù)）+ as + adj. + as I have three times as many as you.我有你三倍那么多。我有你三倍那么多。b. 倍數(shù)（分數(shù)）倍數(shù)（分數(shù)）+ the size (amount，length) of The earth is 49 times the size of the moon.地球是月球的地球是月球的49倍。
6、倍。 c. 倍數(shù)（分數(shù)）倍數(shù)（分數(shù)）+ 形容詞（副詞）比較級形容詞（副詞）比較級+ than The grain output is 8 percent higher this year than that of last year. 今年比去年糧食產量增加今年比去年糧食產量增加8%。d. 還可以用還可以用by+倍數(shù)，表示增加多少倍倍數(shù)，表示增加多少倍 The production of grain has been increased by four times this year. 今年糧食產量增加了今年糧食產量增加了4倍。倍。 8.日期，時間和分數(shù)的表示法見書本日期，時間和分數(shù)的表示法見
7、書本p20。9.也可以用也可以用after和和before 表示時間，表示時間，情況分別與情況分別與 past 和和 to 相當。如：相當。如： 1It is few minutes before six oclock 現(xiàn)在是六點差幾分。現(xiàn)在是六點差幾分。 2The correct time is three minutes after ten 準確時間是十點三分。準確時間是十點三分。 3It happened at a quarter before five 事情發(fā)生在五點差一刻的時候。事情發(fā)生在五點差一刻的時候。10. 序數(shù)詞前面一般要加序數(shù)詞前面一般要加the,但是也有不加的情況，這個時
8、候表示但是也有不加的情況，這個時候表示“又一，再一又一，再一”的意思。的意思。They had a second child in 1988.上面的上面的a second 可以用可以用another 代替。代替。Exercises:1. Is there any food for us _ ?A. tenB. tenthC. the tenthD. the ten 2. The bike cost me _ yuan.Afive hundred forty Bfive hundreds fourtyCfive hundred and forty Dfive hundred fourty 3.
9、“Which lesson are you studying now?”-“_”A. The lesson six B. Sixth lessonC. Lesson six D. Lesson sixth 4. The has written a _ compositionAthree-hundred-word Bthree hundred wordsCthree hundreds words Dthree hundreds word 5. She was born on _A A1986,March 9 BMarch 9, 1986C1986,9 March DMarch nine, 198
10、6 ACCAB1. We have finished reading _ units.Athe first twoBfirst twoCthe second Dtwo first 2. My telephone number is _Aeighty eight two forty four zero nineBeight eight two double four O nineCeighty eight two four four zero nineDeight eight two four four zero and nine 3. Every day the old woman sits
11、here for _.A. one and half hourB. one and a half hourC. one and half hours D. one and a half hours 4. Mr Green Will have _ holiday very soon.A. two months B. two monthC. a two-months D. a two-month 5. Mary is_girl.A. an 8 year oldB. 8-years-oldC. the 8 years old D. an 8-year-old ABDDD1. -What day is
12、 today?- -_.-A. June 9. B. TuesdayC. It is hot. D. Its fine. 2. That magnificent _ pyramid was built by the Egyptian people.A. nine-centuries-old B. nine-centurys-oldC. nine century old D. nine-century-old3. -Whats the date today?-_-.A. Its Saturday B. Its JulyC. Its fineD. Its July 154. -What time do you get up every day?-_-.A. Its seven oclock B. Seven oclock timeC. At seven D. On sevenBDDC
天津市大港區(qū)中考英語一輪復習 數(shù)詞課件
