全套人教版七年級英語上冊Unit 2同步練習題及答案.rar,全套人教版七年級英語上冊Unit,2同步練習題及答案,全套,人教版七,年級,英語,上冊,Unit,同步,練習題,答案 單元語法小專題(Grammar Focus) 語法精講 一、指示代詞this，these，that，those 在這四個指示代詞中，this意為“這”，these意為“這些”，指離說話人較近的人或物；that意為“那”，those意為“那些”，指離說話人較遠的人或物。例如： This is my brother.這是我的哥哥。 That is a blue cup.那是一個藍色的杯子。 These are her parents.這些是她的父母。 Those are his friends.那些是他的朋友。 當this或that作主語時，be動詞要用單數(shù)形式is，后面的名詞也用單數(shù)形式；當these或those作主語時，be動詞要用復數(shù)形式，后面的名詞也用復數(shù)形式。 當回答含有this或that作主語的問句，且this或that指物時，應用it代替句中的this或that；當回答含有these或those作主語的問句時，應用they代替句中的these或those。例如： —Is that your pen？那是你的鋼筆嗎？ —Yes，it is.是的，它是。 —Are these his grandparents？這些是他的(外)祖父母嗎？ —No，they aren't.不，他們不是。 【注意】(1)介紹某人時，用this或that，而不用he或she。 (2)打電話時，說自己是誰用This is…，問別人是誰用Who's that？例如： Hello! This is Mary. Who's that？喂！我是瑪麗。您是哪位？ 二、單數(shù)句與復數(shù)句的轉(zhuǎn)換 單數(shù)句改為復數(shù)句是句型轉(zhuǎn)換中的一個重要題型。將單數(shù)句改為復數(shù)句常遵循如下規(guī)則： 1．將單數(shù)句中的指示代詞、人稱代詞、名詞及be動詞等變?yōu)閷膹蛿?shù)形式，如this→ these，that→ those，he/she/it→ they等。例如： This/That is a pen.→ These/Those are pens. He is in China.→ They are in China. I'm a girl.→ We are girls. 2．將單數(shù)句中的不定冠詞a，an去掉(某些固定搭配除外)。例如： It is an orange.→ They are oranges. This is a pen.→ These are pens. 3．單數(shù)句中的形容詞、定冠詞、副詞、疑問詞、介詞等保持不變。例如： The pen is red.→ The pens are red. What color is the jacket？→ What color are the jackets? 【注意】(1)作定語表示性別的單數(shù)名詞在變成復數(shù)句時要變成復數(shù)形式；作定語表示性質(zhì)的單數(shù)名詞在變成復數(shù)句后仍用單數(shù)形式。例如： His friend is a man teacher.→His friends are men teachers. That is an orange tree.→Those are orange trees. (2)表示單數(shù)的物主代詞在變成復數(shù)句時可根據(jù)實際情況變化，有時可仍用單數(shù)，有時可改為相對應的復數(shù)形式。例如： This is his ruler.→ These are his/their rulers. She is my friend.→ They are my/our friends. 語法精練 Ⅰ.用指示代詞this，that，these或those填空。 1．—What's ________ over there (在那邊)? —It's a bus. 2．—Are ________ your pens? —Yes，they are. 3．—Are ________ your pencils? —No，my pencils are here. 4．Hello.________ is Jane. Is ________ Peter? 5．Bob，________ is my good friend，Mike. Ⅱ.按要求完成下列句子，每空一詞。 6．Are those your sisters？(作否定回答) No，________ ________. 7．Is that a cup？(作肯定回答) Yes，________ ________. 8．What is that？(改為復數(shù)句) What ________ ________？ 9．They're orange jackets.(改為單數(shù)句) ________ ________ orange jacket. 10．Are these your friends？(改為單數(shù)句) ________ ________ your friend? 11．She is a nice girl.(改為復數(shù)句) ________ ________ nice girls. Ⅲ.根據(jù)漢語意思完成句子，每空一詞。 12．這些是他的父母。 ________ ________ his ________. 13．那是你的朋友嗎？ ________ ________ your friend? 14．那些電話機是什么顏色的？ What color ________ the ________？ 15．她們是我的姐姐。 ________ are my ________. 16．——那些是你的弟弟嗎？ ——是的，他們是。 —________ ________ your ________？ —Yes，________ ________. —________ is a ruler. 單元語法小專題(Grammar Focus) Ⅰ.1.that　2.these/those　3.those　4.This；that　5.this Ⅱ.6.they aren't　7.it is　8.are those　9.It's an　10.Is this 11.They are Ⅲ.12.These are；parents　13.Is that　14.are；telephones/phones 15．They；sisters　16.Are those；brothers；they are