九年级英语上册 Unit14《Haveyoupackedyet》SectionA课件 人教新目标版.ppt
Unit 14Have you packed yet?SectionA1.Have you watered the plants yet?你给植物浇水了吗?Yes,I have already watered them.是的,我已经给他们浇过水了。【要点指津】(1)本句为现在完成时的一般疑问句。yet 为副词,意为“尚,还”,常用于现在完成时的否定句和疑问句中。(2)already 为副词,意为“已经”,常用于肯定句中,放在be 动词、助动词之后,行为动词之前。(3)water 在句中作及物动词,意为“浇灌,浇水”。链接 water 还可作名词,意为“水”,是不可数名词。【同步互动】I havent finished my task _.BA.alreadyC.neverB.yet D.ever解析:yet 常用于完成时的否定句和疑问句中,表示“尚;还”。I have _ bought a travel guidebook.Have youbought a street map?No,not _.Ill do it right now.BA.yet;alreadyC.already;alreadyB.already;yetD.yet;yet解析:already 用于肯定句中,yet 用于否定句和疑问句中,故选 B。一次不要给植物浇太多水。Dont _ _ _ to the plant one time.watertoomuch2.He had to get up at 5 am to chop wood and light the firefor breakfast.他必须 5 点钟起床去劈柴,并生火做饭。【要点指冿】light 在句中作动词,意为“点燃;点着”。链接 light 的过去式、过去分词均为lit 或lighted。过去分词 lit 常作表语,不能作定语。lighted 常用于名词前作定语,相当于形容词。如:a lighted candle 一支燃着的蜡烛light 还可作名词和形容词。作名词时意为“光;光亮;灯”,作形容词时意为“轻的;亮的”。【同步互动】There is no electricity.Would you please _ the candle?He _ a cigarette and sat at the corner of the street.There was a _ fire in the distance.Maybe we couldget some help.lightlighted/litlighted现在完成时一、现在完成时的基本结构现在完成时是由“助动词 have/has动词的过去分词”构成。二、现在完成时的基本用法1.表示过去发生或已经完成的某一动作对现在造成的影响或结果,常与 already,yet,just,ever,never 等词连用。如:Have you finished your work yet?你已经完成你的工作了吗?Yes,I have just finished it.是的。我刚刚完成。2.表示从过去开始一直持续到现在的动作或状态,可以与表示过去某一时刻或一段时间的时间状语连用,常搭配 for,since,now,today,this month,this year 等。如:I have lived here since 1980.从 1980 年以来我一直住这儿。I have been at this school for over four years.我已经在这所学校待了四年多了。注意:for 与表示一段时间的词或词组连用,如 for twominutes,for five hours,for ten days,for three weeks,for fourteenmonths,for twenty years 等。since 与表示过去某一时刻的词或词组连用,如 since eightoclock this morning,since last Sunday,since five weeks ago,sinceOctober 等。在现在完成时中要注意 have been to 与 have gone to 的区别。have been to 表示已经去过某地,现在回来了;have gone to表示现在在某地或在去某地的途中。如:He has been to Beijing,and he is in Guangzhou now.他去过北京,现在在广州。My father is not at home.He has gone to Shanghai with his boss.我爸爸不在家,他和他的老板去上海了。【同步互动】AAre you going to the bank,Laura?No,I _ to the bank already.(2011年江苏徐州)A.have beenC.am goingB.have gone D.had been解析:题意:“你打算去银行吗,劳拉?”“不,我已经去过银行了。”“have/has been to地点”意为“去过某地(已回来)”;“have/has gone to地点”意为“到某地去了(现在不在说话者所在的地方)”。根据题意可知选 A。He promised to pick me up at the school gate.However,he_ yet.(2011年安徽)DA.didnt arriveB.doesnt arriveC.isnt arrivingD.hasnt arrived解析:yet常用于完成时的否定句和疑问句中,故选D。My dictionary _.I have looked for it everywherebut still _ it.DA.has lost;dont findB.is missing;dont findC.has lost;havent foundD.is missing;havent found解析:题意:我的字典不见了。我找遍了每个角落但还是找不到。第一空强调“字典丢失”的状态,missing 可作形容词,意为“丢失的”;第二空强调动作对现在造成的结果,用现在完成时。故选 D。