高一英语必修4课件2-1.ppt

.词汇过关 1_adv.曾经 2_n数据，数字 3_vt. & vi.预言；预测；预示 答案：1.ever 2.statistic 3.predict,.短语自查 1would like_ 2go to bed_ 3_谈论 答案：1.想要 2.上床睡觉 3.talk about,.句式翻译 1Have you ever grown any plants? If so, what did you do to grow them? If not, what kind of plant would you like to try growing? _ 2What do you think would happen if tomorrow there was suddenly no rice to eat? _,答案： 1你曾种植过植物吗？如果种过，为了种植它们你都做了些什么？如果没有，你想尝试种植哪种植物？ 2如果明天突然没有大米吃了，你认为会发生什么事？,.单词突破 1ever adv.在任何时候；曾经 常用于否定句、疑问句、条件从句或比较从句中，除标明是过去时间，可以用于过去时外，一般只用于现在时或完成时。 I dont remember ever seeing him. 我不记得曾见过他。 If you are ever in Beijing, come and see me. 不管什么时候，如果你在北京，一定来看我。 Thats the biggest fish Ive ever seen. 那是我见过的最大的鱼。,【知识拓展】 1)ever adv. 永远，总是(用于肯定句中) He is ever ready to help others. 他总是乐意帮助别人。 究竟，到底(用于疑问副词或代词之后，加强语气) Why ever did you agree? 你究竟为什么要同意？,2)as ever依旧，仍然 than ever比任何时候 for ever永远 yours everever yours(信末语)你永久的朋友 ever since从时候起,【牛刀小试】 (1)The coffee is wonderful! It doesnt taste like anything I_before. Awas having Bhave Chave ever had Dhad ever had 答案：C 此处强调现在的结果，ever.before是典型的现在完成时的特征。,(2)(2009湖南)I can _ be a teacher. Im not a very patient person. Aseldom Bever Cnever Dalways 答案：C 本题考查副词的词义辨析。 题意：我是绝对做不成老师的，我不是一个很有耐心的人。,根据汉语意思完成句子 (3)他的钱比以往任何时候都多。 He has _ _ _ _. (4)到七点时，北风比以往吹得更强劲了。 By seven oclock, the wind was_ _ _ _. (5)你究竟走哪一条路？ _ _ _did you go? 答案：(3)more money than ever (4)blowing harder than ever (5)Which ever way,2statistic (n.) 1)(常用复数形式statistics)统计；统计数字；统计资料 These statistics show that there are 57 deaths per 1,000 children born. 这些统计数字表明每一千个出生的婴儿中有五十七个死亡。 2)用statistics表示统计学，但作单数看。 Statistics is a branch of mathematics. 统计学是数学的一个分支。,【牛刀小试】 Statistics_that statistics_becoming hotter and hotter in recent years. Ashows; are Bshows; is Cshow; are Dshow; is 答案：D 题意：统计表示统计学在最近几年正变得越来越热，所以D项合适。,.句式点击 1If so, what did you do to grow them? If not, what kind of plant would you like to grow? 如果种过，你是如何种植的？如果没有，你想种植哪类植物呢？ 句中If so的意思为“要是那样”，so用来代替前面的分句或句子；If not的意思为“如果不是那样，否则”，都是承前省略。,Will you be free this afternoon? If so, let us go shopping. 今天下午你有空吗？逛商场吧。 Are you ready? If not, Im going without you. 你准备好了吗？否则我就自己去了。,这种省略句还有：if ever“如果曾经有的话”；if any“如果有的话”；if possible“如果可能的话”；if necessary“如果必要的话”。这种用法是为了避免重复，so用于代替前面句子的肯定假设，not代替前面句子的否定假设。,Did Jack sell the house? And, if so, what happened to the money? 杰克是不是把房子卖了？如果是卖了的话，那么那笔钱怎么处置呢？ Please correct my mistakes if any(if there is any mistakes) 如果有错的话，请改正我的错误。 Come to visit me next time, if possible. 如果可能的话，下次一定要来看我。,【牛刀小试】 (1)(2008安徽)Have you got any particular plans for the coming holiday? Yes._， Im going to visit some homes for the old in the city. AIf ever BIf busy CIf anything DIf possible,答案：D 问句为“对于既将到来的假期，你有什么特别的计划吗？”答语为“是的。如果可能的话，我要去城里拜望一些老人。”if ever“如果曾经有的话”；if busy“如果忙的话”；if anything“若有什么事的话”；if possible“如果有可能的”，是if it is possible的省略。,(2)I might be away next week. If_， I wont be able to see you. Athat Bthis Cso Dit 答案：C 此处考查if so, so指代前文内容。,(3)Will you get a free evening next week？_，let us have dinner together. AIf so BIf not CEven though DAs if 答案：A if so意为“要是那样，果真如此”，so用来代替前面的分句或句子，构成缩略条件句，语义根据上下文而定。if not用在条件句后，表示“不然；要不”的意思。题意：下周你能有一晚上空闲吗？如果有，我们一起吃顿饭。,2What do you think would happen if tomorrow there was suddenly no rice to eat? 如果明天突然无大米可以食用，你认为会出现何种局面？,1)该句中含有“双重疑问句”，其结构为：特殊疑问词不带宾语的一般疑问句陈述结构。从语法角度看，do you think为插入语，句子的主要部分为What would happen？由于插入语把原先的特殊疑问句一分为二，故无论特殊疑问词在句中担任何种句子成分，句子都要采用陈述语序。此类结构除了do you think外，还有：do you suppose, do you imagine, do you guess, do you expect, do you hope, do you consider, do you say, do you know等。例如：,What do you think is the proper time for us to start? 你认为我们什么时间出发合适呢？ Who do you suppose helped me in the darkness? 你想会是谁暗中帮了我呢？ Who do you believe is to blame? 你认为应该责备谁？ What time does the letter say he will start? 信中说他什么时间动身？,【知识拓展】 这种句型不能用Yes或No来回答，必须把结构中的插入语变成“陈述句宾语从句”的形式来回答；插入语也可后置，其前用逗号。例如： What do you think the ocean bottom is made up of? I think it is made up of irregular plains. (or：It is made up of irregular plains，I think.) “你认为海底是由什么组成的？”“我认为海底是由高低不平的平原组成的。”,【牛刀小试】 (1)_be sent to work there? AWho do you suggest BWho do you suggest that should CDo you suggest who should DDo you suggest whom should 答案：A 题意：你建议派谁去那儿工作？该考题中含有“双重疑问句”结构，即：特殊疑问词主句的疑问语序从句的陈述语序。do you suggest必须位于特殊疑问词的后面；此外，suggest表示“建议”时，其后的宾语从句必须采用虚拟语气结构，即：谓语动词采用(should)do形式。,(2)Mum is coming. What present _for your birthday? Ayou expect she has got Byou expect has she got Cdo you expect she has got Ddo you expect has she got 答案：C 题意：妈妈要来了。你盼望她给你买什么生日礼物了？do you expect应放在特殊疑问词what之后。,2)宾语从句中使用了虚拟语气，这类句子表示与事实相反的情况或实现的可能性不大的情况。 If I had money, I would buy a new car. 如果我有钱，我会买一辆新车。 If I should know her, I could help her. 如果我认识她，我就会帮助她。 If he were to do the job, in what way do you think he would do it? 要是他来做这份工作，你认为他会用什么方法来做呢？,表示将来情况的虚拟条件句，谓语动词的形式可用下表表示：,【牛刀小试】 (3)(2009天津)This printer is of good quality. If it_break down within the first year, we would repair it at our expense. Awould Bshould Ccould Dmight 答案：B 考查虚拟语气。题意：这台打印机质量很好。如果一年内它坏了，我们会免费为你修理。对将来的虚拟中，从