Unit 2 This is my sister.Section A (1a-1c)任务一任务二任务一 : 根据句意写出画线部分的对应词1.Tom is my brother.Kate is my . 2.This is her skirt and is her jacket. 3.Mr. Smith is her father.Mrs. Smith is her . 4.These pens are blue and ones are red. 5.This is my grandfather and that is my . sister that mother those grandmother任务一任务二任务二 : 写出下列单词的复数形式1.friend 2.brother 3.this 4.that 5.family 6.is friends brothers these thosefamilies areThose are my parents. 那是我的父母。剖析 这是用来介绍人 / 物的常用句型 ,“其句式常为 Those are + 可数名词的复数形式 .”, 其常用句式还有 :“These are + 可数名词的复数形式 .” 。如 :These are my books.这些是我的书。拓展 (1) 英语中 , 介绍在场的第三人时 , 常用句型为“ This is .../That is ...” 。出于礼貌 , 一般不直接说“ He is .../She is ...” 。如 :—Lucy, this is Kate.—— 露西 , 这位是凯特。—Nice to meet you, Kate.—— 很高兴认识你 , 凯特。(2) 回答主语是 these 或 those 的一般疑问句或特殊疑问句时 , 通常用 they 来代替问句中的 these 或 those 。