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高中三年级英语

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  • 完形填空
    阅读下面的短文并回答问题,然后将答案写到答题卡相应的位置上(请注意问题后的词数要求)
    [1]A program in the United States brings scientists and engineers into elementary schools to teach teachers more about how to teach science.
    [2]Dave Weiss is a retired engineer. One day each week he volunteers at Georgian Forest Elementary School in Silver Spring, Maryland, near Washington. He works with teacher Fred Tenyke on science projects for ten years and gets as much pleasure from helping the teachers as he does helping the students.
    [3]Student Jada Lockwood says she enjoys Mr. Weiss' visits to her classroom. She likes the drawings he uses to explain scientific ideas.
    [4]The American Association for the Advancement of Science sponsors the Senior Scientists and Engineers program. Dave Weiss has been a volunteer in that program for many years. The scientists and engineers help teachers in elementary schools improve their skills.
    [5]Mr. Weiss says he and the other volunteers help teachers by providing hands-on knowledge. He notes that science is an area in which many elementary school teachers have _________experience.In elementary school, for the most part, a regular classroom teacher is responsible for teaching science, along with reading and math, and if they don't have a strong science background, just by nature, they're going to tend to underrepresent science in the curriculum.
    [6]American fifteen-year-olds scored about average in science among countries that took part in testing by the OECD in 2009. The OECD is the Organization for Economic Cooperation and Development.
    [7]Dave Weiss says he is concerned about such results, but hopeful for the future for American students learning science. Fred Tenkye thinks volunteers like Dave Weiss are helping students do that. "And if you can develop a passion for science, then eventually the grades and the test scores, then that will follow and increase, too." he said.
    小题1:How does Dave Weiss feel when he stays with students?(no more than 10 words)
    ____________________________________________________________________
    小题2:What do the students think of Dave Weiss’s teaching?(no more than 6 words)
    ____________________________________________________________________
    小题3:Fill in the blank in Paragraph 5 with proper words. (1 word)
    ____________________________________________________________________
    小题4: What should the students do when they are learning science? (no more than 10 words)
    ____________________________________________________________________
    小题5:What’s the main idea of this passage? (no more than 10 words)
    ____________________________________________________________________

    本题信息:英语完形填空难度一般 来源:未知
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本试题 “阅读下面的短文并回答问题,然后将答案写到答题卡相应的位置上(请注意问题后的词数要求)[1]A program in the United States brings scientists and enginee...” 主要考查您对

序数词

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  • 序数词

序数词的概念:

表示顺序的数称为序数词。如:first, second, third, fourth。


序数词的构成与用法

1、序数词的构成:
①一般来说,是由相应的基数词加词尾th构成。
   例:four+th→fourth
           six+th→sixth
           seven+th→seventh
           ten+th→tenth
②下面这些基数词在变为序数词时,有特殊的变化。
例:one→first
        two→second
        three→third
        five→fifth
        eight→eighth
        nine→ninth
        twelve→twelfth
③十位整数序数词的构成方法是将基数词的词y变成i,然后再加eth。
例:twenty→twentieth
        thirty→thirtieth
        forty→fortieth
        ninety→ninetieth
④两位或两位以上的基数词变成序数词时,仅将个位数变成序数词。
例:twenty-one→twenty-first
        thirty-five→thirty-fifth
        a hundred and fifty-three→a hundred and fifty-third

2、序数词的用法:
①序数词在使用时,一般加上定冠词。
例:the first book
        the second floor
        the third day
        the fourth week.
②序数词在多数情况下都用作定语,有的也可以作表语、主语和宾语。
例:The may1st is Labour Day. 五月一日是劳动节。
        My room is on the second floor. 我的房间在二楼。
        The first is larger than the secon.(主语)第一个比第二个大。
        Read the book from the first.(宾语)从开头读这本书。
        You'll be the sixth to write.(表语)你将是第六个写的。
③序数词的前面可以加上不定冠词,用来表示“再一”,“又一”的意思。
例:You may have a third try. 你可以第三次尝试。


序数词知识体系:

 


约数的表达方法

用tens/dozens/scores/hundreds/thousands/millions of 表示“几十、几百、上千、成千上万”等。
如:The boy bought dozens of pencils.            
        Thousands of people died in the earthquake.
注意: (A):dozen, score, hundred, thousand, million等表示确切数量时,不用复数。
如:five dozen (of) eggs   五打鸡蛋
        hree hundred people  三百个人

分数词的构成和用法:

1)分数词构成法:
分数词(FractionalNumerals)由基数词和序数词构成,基数词代表分子,序数词代表分母。除了分子为1的情况下,序数词都要用复数形式:
如:1/4:one-fourth
        5/9:five-ninths
        2/3:two-thirds
       17/5:three and two-fifths
       7/12:seven-twelfths
       379/8:forty-seven and three-eighths
此外还有下面表示法:
如:1/2:a(one) half
        1/4:a(one) quarter
        3/4:three-quarters
        9/4:two and a quarter
        3/2:one and half
        31/4:seven and three quarters