资源简介 Unit 3 Language in use★ 重点知识点解析1. turn round 扭转,使好转=turn around【拓展】turn (a)round还意为“转身“与turn有关的短语① turn on 打开② turn up 调高(音量)等;露面③ turn off 关掉④ turn down 调低,关小⑤ turn into 变成⑥ turn over 翻身;翻转⑦ turn out 证明是,结果是【例句】◆我转身看到了我的英语老师。I turned (a)round and saw my English teacher.2. in return 作为回报【归纳】return 名词,意为“回报“ ※ in return for ”作为对……的回报“【例句】◆他给了我们食物和衣服,没有要求任何回报。He gave us food and clothing and asked for nothing in return.3. used to do sth. 过去常常做某事【辨析】used to do sth. / be used to do sth. / be used to (doing) sth.used to do sth. “ 过去常常做某事“。表示过去习惯性的动作/状态,不与过去时间连用;be used to do sth. “被用来做某事”,强调用途be used to (doing) sth. “习惯于(做)某事,to+名词/代词/动词-ing形式。【例句】◆我过去常常周末去公园跑步,但现在我习惯于打乒乓球。I used to run in the park at weekends, but now I am used to playing table tennis.★ 重点语法解析一般现在时的被动语态一般现在时被动语态的句式肯定句:主语+am/is/are+动词过去分词(+by+动作执行者).否定句:主语+am/is/are+not+动词过去分词(+by+动作执行者).一般疑问句:Am/Is/Are+主语+动词过去分词(+by+动作执行者)?特殊疑问句:特殊疑问词+am/is/are+主语+动词过去分词(+by+动作执行者)?【例句】◆The car is made by an Italian company.◆The car is not made by an Italian company.◆Is the car made by an Italian company ◆When is the car made by an Italian company 主动语态和被动语态的转换方式确定主动语态中的主语,谓语和宾语;把主动语态中的宾语变为被动语态的主语。若主动语态的宾语是人称代词,宾格变主格;把主动语态的谓语变成“be+动词过去分词”结构,时态不变;把主动语态的主语放在被动语态by后作宾语。若主语是人称代词,主格变宾格。主动语态 I clean the classroom.主语 谓语 宾语被动语态 The classroom is cleaned by me.主语 谓语 by+宾语【提醒】含有介词/副词的动词短语变为被动语态时,介词/副词不可省。【例句】◆Honey is collected from the flowers by the bees.◆My pet dog is looked after by my friend.三. 适合被动语态的情况1. 当动作执行者不必/不易说出时;2. 需要突出动作的承受者时;3. 文章标题/广告/新闻等用语常用被动语态。【例句】◆那些熊猫每天早上都吃竹子。◆英语老师被所有学生喜爱。◆招聘英语老师。The pandas are fed with bamboo every morning.The English teacher is loved by all the students.English Teachers wanted.四. 不可使用被动语态的情况1. 系动词get/turn/become/seem/look/sound/smell/taste/feel等后+形容词作表语时,其主动语态表被动含义;2. 动词need/want/be worth等后+动词-ing形式时,其主动语态表被动含义;3. 某些及物动词wirte/wash/sell/tread/wear/drive等,它们主语为物时,其主动语态表被动含义;4. 不及物动词/词组没有被动语态,如happen/appear/disappear/last/take place等。五.特殊句型的被动语态1. 含双宾语的主动结构变被动结构【例句】◆我朋友给我一只钢笔。My friend gives a pen.I am given a pen by my friend.A pen is given to me by my friend.2. 主动语态中含有复合宾语【例句】◆我们发现她正在教室里唱歌。We found her singing in the classroom.She is found singing in the classroom (by us).3. 主动语态中,使役动词have/make/let等或感官动词see/watch/notice/hear等后+省略to的动词不定式,改被动语态时把to还原【例句】◆我经常看见她下课后弹钢琴。I often see her play the piano after class.She is often seen to play the piano after class. 展开更多...... 收起↑ 资源预览