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1、七年级（上）第三单元第1课时当堂达标题Unit 3 Is this your pencil?1a2d. 根据句意及括号内所给单词的提示填空。1. This _ (be) a pencil box. 2. Are these your _ (ruler)? 3. This cup is _ (her). 4. This isnt my orange. It is _ (his).5. Those are my jackets. _ (it) are green. 根据句意及所给汉语提示，写出句中所缺单词。1. My parents are _(老师) in a middle school. 2.
2、 _(感谢) you for your map. 3. The book is _(关于) UFOs.4. Is this dictionary _(你的)?5. Can you _(帮助) me?III. 根据括号内的要求完成下列各题，每空一词（含缩略形式）。1. Those are her pens. (改为一般疑问句)_ _ her pens?2. Are these Erics friends? (补全答语)No, _ _.3. Is this jacket hers? (改为同义句)_ this _ jacket?4. This is my pen. (改为同义句)This pen
3、is .5. Is that a schoolbag? (做肯定,否定回答) _ / _. 翻译句子。1. 这些是你的铅笔。 .2. 这些书是他的。 .七年级（上）第三单元第1课时当堂达标题答案解析Unit 3 Is this your pencil?1a2d.1. is 主语this是单数。2. rulers由these得知后面用名词复数形式。 3. hers 名词性物主代词代替her cup。4. his 名词性物主代词代替his orange。5. They 由be动词得知变主语为复数，they代替前一句提到的jackets。. 1. teachers 2. Thank 3. about 4. yours 5. helpIII.1. Are those 变一般疑问句， be动词提前，首字母大写。 2. they arent 主语为复数。 3. Is; her her jacket等于题目中的名词性物主代词hers。4. mine 名词性物主代词mine代替my pen。5. Yes, it is. / No, it isnt. . 1. These are your pencils.2. These books are his.
