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2024年牛津上海版英语八年级上册寒假突破 数词2(含答案)

日期:2024-06-01 科目:英语 类型:初中试卷 查看:60次 大小:23254Byte 来源:二一课件通
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2024年,牛津,上海,英语,八年级,上册
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口诀解题 以一敌十 数词(2) 数词概述 数词表示数目多少或顺序先后,分为基数词和序数词; 基数词表示人和事物数目或数量的多少,如:four/thirteen/twenty/ninety-nine; 序数词表示顺序先后,如:first/second/third/fifth/forty-fourth; 数词可以用来表达编号、日期、年龄、年代、时刻、分数、小数、倍数等。 数词口诀(2) 子基母序,分子>1,分母+s in one's -ties,in the 1990s 有连字符-绝无s 口诀详解 子基母序,分子>1,分母+s 用英文表达分数时,分子用基数词,分母用序数词,当分子大于1时,分母须用序数词的复数形式,要在词尾加s。(上子下母,前基后序:在数学中,分数线上面是分子,下面是分母;在英语中,前面的是分子,后面的是分母) half:n. 一半 quarter:n. 一刻钟/四分之一 1/2 a half 或 one half 1/3 a third 或 one third 1/4 a quarter 或 one quarter 或 a fourth 或 one fourth 3/4 three quarters 或 three fourths 2/5 two fifths 2/9 two ninths 逢十的基数词的复数形式表示年龄和年代 in one's -ties(整十基数词的复数):在某人几十多岁时。 in his twenties 在他二十多岁时 in one's twenties/thirties/forties/fifties/sixties/seventies/eighties/nineties 在某人二/三/四/五/六/七/八/九十岁时 in the 整十年份的复数或者所有格:在……世纪……年代。 in the 1990's = in the 1990s 读作:in the nineteen nineties 在二十世纪九十年代 有连字符-绝无s 基数词和其他名词组合可构成短语作定语,其中的名词用单数形式,短语中的各部分间要用连字符“-”来连接。 基数词-名词单数(-形容词) He is an eight-year-old boy. VS He is eight years old. a three-month-old baby 一个三个月大的婴儿 a five-minute walk = five minutes' walk 五分钟的步行 a two-month visit to Japan 一次对日本为期两个月的访问 a three-week trip around China 一次为期三周的中国之行 口诀解题示范 In our class, _____ of the students are boys. A.three-fifths B.three-fifth C.third-fifth D.third-fives 分析: 观察ABCD四个选项可知本题考点是分数表达法,根据口诀子基母序,分子>1,分母+s,通过子基母序排除CD,分子是three,3>1,分母fifth要加s,排除B,得出答案,选A。 In his _____, Charles began to write and soon became famous. A.twenty B.twenties C.twentieth D.twentieths 分析: 观察ABCD四个选项可知本题考点是逢十的基数词的复数形式表示年龄,根据口诀in one's -ties,直接得出答案,选B。 Cindy is _____ girl and she wants to be a teacher. A.a 18-year-old B.an 18-years-old C.an 18-year-old D.a 18 years old 分析: 观察ABCD四个选项可知本题考点是基数词-名词单数(-形容词)短语和冠词,根据口诀有连字符-绝无s,排除B。18是eighteen,根据口诀一个one欧洲人European用a(口诀解题 以一敌十 冠词1),eighteen ≠ European,eighteen前不用a,反之用an,排除A和D,最后得出答案,选C。 真题训练 One _____ of the students in our class chose to join the clubs after school. (three) Only three _____ of the workers in this area can understand German. (five) I found two _____ of the students didn’t finish the homework. (three) Four _____ of the students have been to the exhibitions. (nine) Five _____ of the students agreed that Peter should be the monitor. (twelve) He went to study in the USA in his _____. (twenty) Justin Bieber got popular among the teenagers in the world in his _____. (twenty) He w ... ...

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