人教PEP版英语五年级下册Unit 4 When is the art show Part B Let’s learn 练习卷
题型：填空题※难度：较易
<div><div><p>【题目】按要求写出对应的单词。</p><p> 基数词 序数词 简写</p><p>【1】12 → ____________ → _______________ → ____________</p><p>【2】20 → ____________ → _______________ → ____________</p><p>【3】30 → ____________ → _______________ → ____________</p><p>【4】21 → ____________ → ______________ → ____________</p><p>【5】23 → _____________→ ______________ → ____________</p></div></div>
<div><p>【答案】</p><p>【1】 twelve twelfth l2th </p><p>【2】 twenty twentieth 20th </p><p>【3】 thirty thirtieth 30th </p><p>【4】 twenty-one twenty-first 21st </p><p>【5】 twenty-three twenty-third 23rd </p><p>【解析】</p><p>基数词变序数词的规律：</p><p>one→first，two→second， three→third这三个词变化特殊，要单独记；</p><p>eight→eighth，nine→ninth，八去t， 九去e后再加-th；</p><p>five→fifth，twelve→twelfth，五、十二把ve换成f再加-th；</p><p>twenty→twentieth，thirty→thirtieth...整十先把词尾y改为ie再加-th。</p><p>两位数时则十位数用基数词，个位数用序数词，如： twenty-first。</p><p>序数词可以用缩写形式来表示，主要缩写形式有：1st，2nd，3rd为特殊形式，其它的都是阿拉伯数字后加th。</p><p>【1】12的英文是twelve，twelve变为序数词要把ve换成f后再加-th，即twelfth，简写是直接写数字+th，即12th，故答案为twelve，twelfth，12th。</p><p>【2】20的英文是twenty，twenty变为序数词先把词尾y改为ie再加-th，即twentieth，简写是直接写数字+th，即20th，故答案为twenty，twentieth，20th。</p><p>【3】30的英文是thirty，thirty变为序数词先把词尾y改为ie再加-th，即thirtieth，简写是直接写数字+th，即30th，故答案为thirty，thirtieth，30th。</p><p>【4】21的英文是twenty-one，twenty-one是两位数，两位数变为序数词时则十位数用基数词，个位数用序数词，one的序数词是first，即twenty-first，</p><p>简写是直接写数字+st，即21st，故答案为twenty-one，twenty-first，21st。</p><p>【5】23的英文是twenty-three，twenty-three是两位数，两位数变为序数词时则十位数用基数词，个位数用序数词，three的序数词是third，即twenty-third，</p><p>简写是直接写数字+rd，即23rd，故答案为twenty-one，twenty-third，23rd。</p></div>
题型：选择题
※难度：一般
<div><div><p>【题目】When is _________ birthday? ( )</p><p>A.Mike B.Sarah’s C.you</p></div></div>
<div><p>【答案】B</p><p>【解析】</p><p>句意：什么时候是萨拉的生日？横线后有名词birthday，此处应用名词所有格形式，表示某人的生日；A、C选项都不是名词所有格形式，故排除，故选B。</p></div>
题型：选择题
※难度：一般
<div><div><p>【题目】There are ________ days in June. ( )</p><p>A.thirty B.thirtyth C.thirtieth</p></div></div>
<div><p>【答案】A</p><p>【解析】</p><p>句意：六月有30天。根据常识可知，6月只有30天，表示天数，用基数词；A选项是基数词，B选项形式错误，C选项是序数词，故选A。</p></div>
题型：选择题
※难度：一般
<div><div><p>【题目】Mother’s day is on the _____ Sunday in May. ( )</p><p>A.two B.twoth C.second</p></div></div>
<div><p>【答案】C</p><p>【解析】</p><p>句意：母亲节在五月的第二个星期日。表示第几个星期天要用序数词；A选项是基数词，B选项形式错误，C选项是序数词，故选C。</p></div>
题型：选择题
※难度：一般
<div><div><p>【题目】My birthday is on January _______. ( )</p><p>A.21 B.21th C.21st</p></div></div>
<div><p>【答案】C</p><p>【解析】</p><p>句意：我的生日在一月二十一日。考查缩写形式，21是两位数，两位数变为序数词时则十位数用基数词，个位数用序数词，one的序数词是first，即twenty-first，简写是直接写数字+st，即21st，故选C。</p></div>
题型：选择题
※难度：一般
<div><div><p>【题目】December is the ________ month of the year. ( )</p><p>A.twelfth B.12nd C.12</p></div></div>
<div><p>【答案】A</p><p>【解析】</p><p>句意：十二月是一年的第十二个月。表示第几个月，要用序数词形式；12变为序数词要把ve换成f再加-th，即twelfth，故选A。</p></div>
题型：阅读理解
※难度：一般
<div><div><p>【题目】阅读短文，选择正确的答案。</p><p>Today is March 15th. I put some flower seeds(种子) into a big pot. I water it, too. Now it’s in the sun. Today is April 1st. I’m so excited. I can see a sprout(芽). It’s small and green. It’s so lovely. I water it again and put it in the sun. Today is April 15th. My plant(植物)has two green leaves. I water it every day and make sure it gets lots of fun. Today is May 1st. My plant is one month old! It’s tall and strong, but it has no flowers. Oh, come on! I can hardly wait!</p><p>【1】On _________ put some seeds into a pot. ( )</p><p>A.April 1st B.April 15th C.March 15th</p><p>【2】On _________, the plant has a sprout. ( )</p><p>A.April 1st B.April 15th C.March 15th</p><p>【3】On _________, the plant has two green leaves. ( )</p><p>A.April 1st B.April 15th C.March 15th</p><p>【4】—How old is the plant on May 1st? ( )</p><p>—_________.</p><p>A.One year old B.One month old C.One day old</p><p>【5】—What does the plant look like? ( ) </p><p>—_________.</p><p>A.It’s tall and strong B.It’s tall and thin C.It’s short and strong</p></div></div>
<div><p>【答案】</p><p>【1】C</p><p>【2】A</p><p>【3】B</p><p>【4】B</p><p>【5】A</p><p>【解析】</p><p>【1】题干句意为“在_____放一些种子在罐子里。”根据“Today is March 15th. I put some flower seeds(种子) into a big pot.”可知在三月十五日，故选C。</p><p>【2】题干句意为“在_____，植物有了芽。”根据“Today is April 1st. I’m so excited. I can see a sprout(芽).”可知四月一日有了芽，故选A。</p><p>【3】题干句意为“在_____，植物有两片叶子。”根据“Today is April 15th. My plant(植物)has two green leaves.”可知在四月十五日有两片叶子，故选B。</p><p>【4】题干句意为“五月一日的时候植物多大了？”根据“Today is May 1st. My plant is one month old!”可知是一个月大，故选B。</p><p>【5】题干句意为“植物看起来怎么样？”根据“It’s tall and strong, but it has no flowers.”可知植物很高很健壮，故选A。</p></div>
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