高中英语unit5meetingyourancestorssection3课件新人教版选修8内容摘要:

______ ancient times. 答案: dates back to (3)补全句子 My interest in English ________ ________(追溯到 )the time when I met a good English teacher in junior middle school. 答案: dates from 1. Worried about the preparations for her feast, Lala quickly turned for home with her collection of nuts, melons and other fruit. 拉拉担心她这次盛宴的准备工作 , 所以赶紧把坚果 , 甜瓜和其他水果收集起来就快步回家了。 worried about the preparations for her feast为过去分词短语作状语 , 用来描述主语的状态。 ① Bu ri ed in his hom ewor k, he didn39。 t noti ce it was 10 o39。 clock . 忙于他的作业,他没注意到已经 10 点了。 ② Devo ted to his resea rch, he has no ti m e to watch TV , so h e doesn39。 t kn ow wh at has happene d to Japan . 致力于他的研究,他没时间看电视,因此他不知道近来日本发生了什么事。 注意: 有些动词或动词短语常用过去分词形式作状语 , 用来描述主语的状态。 这些词有 excite, tire, frighten, absorb,surprise, shock, satisfy, exhaust等。 活学活用 (1)补全句子 ① ________ (精疲力竭 ), he lay on the grass. ② He turned away, ________ (满意的 ). 答案: ① Exhausted ② satisfied (2)用恰当形式填空 ________ (addict)to the Inter, he didn39。 t study at all. 答案: Addicted 句意:沉溺于网络 , 他一点也不学习了。 be addicted to...“ 沉溺于 „„ ” , addicted to为过去分词短语作状语 , 用以说明主语的状态。 2. If only she had looked ahead and planned better this year! 她今年要是早有预见 , 计划得更好些就好了。 if only...意为 “ 要是 „„ 就好了 , 但愿 „„ ” , 其后的句子常用虚拟语气 , 表达强烈的愿望或遗憾。 if only所在的句子可以用一般过去时 (表示与现在事实相反的虚拟 )、 过去将来时(表示与将来事实相反的虚拟 )或过去完成时 (表示与过去事实相反的虚拟 )。 If only my mother were with me now! 要是我母亲现在和我在一起就好了。 If only he would reply to my letter! 要是他能给我回信就好了。 注意: “ If only+句子 ” 是一个固定句型 , 表示一种愿望 , 意为 “ 要是 „„ 就好了 , 但愿 „„ ”。 ① “ if only...could/would+ do...” 表示与将来事实相反的愿望。 I dreamed the ing exams. If only I could have time to receive my lessons. 我对即将到来的考试非常担心。 如果我有时间复习该多好啊。 ② “if only...did...”表示与目前或现在事实相反的愿望。 If only I had another chance. 要是我再有一次机会就好了。 ③ “ if only...had done...”表示与过去事实相反的愿望。 If only you had e to help us yesterday! 你要是昨天来帮我们就好了。 比较网站 if only , onl y if if only 用来表达愿望,意为 “ 但愿 „„ ;要是 „„ 就好了 ” ,句中谓语动词要用虚拟语气 ( 与现在事实相反用一般过去时,与过去事实相反用过去完成时 ) only i f 由副词 only 和从属连词 if 组合而成, only 起强调作用,意为 “ 只要 ”。 活学活用 (1)用 if only或 only if 填空 ① ______________ we could afford to buy a car of our own. ② ___________ you knew how hard I39。 ve tried to please you. ③ _____________ the boss has given permission is a worker allowed to leave the place. 答案: ① If only ② If only ③ Only if (2)用恰当形式填空 Look at the trouble I am in! If only I ________ (follow)your advice. 答案: had followed if only表示 “ 如果 „„ 就好了 ” , 表示与事实相反 , 条件意味强烈 , 其谓语动词常用虚拟语气。 此句表示过去的动作 , 应选用过去完成时。 3. Having heard wolves howling in the forest, Lala accelerated her walk up the path to the caves fearing that there might be wild beasts lying in wait for her. 听见狼群在森林里嚎叫 , 拉拉加快了回洞穴的步伐 , 担心会有野兽在等着她。 此句中多处用了现在分词。 “ Having heard wolves howling in the forest”为现在分词的完成式在句中作原因状语 , 其中“ howling in the forest”为现在分词短语作宾语补足语;而“ fearing that...”在句中作伴随状语 , 其中 that从句为动词 fear的宾语;从句中的 “ lying in wait for her”为分词短语作后置定语修饰 wild beasts。 Having finished his report, Tom went to the playground to play basketball. 完成了他的报告 , 汤姆去操场打篮球了。 I saw him talking with his teacher just now. 刚才我看见他正和他老师谈话。 They walked on the road to the library, talking and laughing. 他们走在去图书馆的路上 , 说说笑笑。 This is the dog barking just now. 这就是刚才叫唤的那只狗。 注意: 现在分词作状语 , 其逻辑主语是句子的主语 , 它与主语之间构成主谓关系;现在分词作宾语补足语 , 与宾语有逻辑上的主谓关系;现在分词作定语 , 与所修饰的名词有逻辑上的主谓关系。 活学活用 用恰当形式填空 (1)________ (fail)to reach them on the phone, we sent an instead. 答案: Having failed 句意:我们没能与他们取得电话联系 , 所以我们发了一封电子邮件。 因为分词动作是由句中主语we发出 , 并且该动作又发生在谓语动词 sent之前 , 故要用现在分词的完成式作原因状语 , 相当于 as we had failed to reach them on the phone。 (2)People sat together, ________ (talk about)another earthquake in Japan. 答案: talking about 句意:人们坐在一起 , 谈论着发生在日本的又一次地震。 从句意看 , 此处应为现在分词短语作伴随状语 , 所以填 talking about。 4 . She had almost reached her destination when a delicious smell arrested her progress and she stopped. 快到达目的地的时候 , 一阵香气扑鼻 , 她停下来 , 不往前走了。 句中 “ had done...when...”是一个常用句型 , 意为 “ (刚 )做完了 „„ 就在那时 „„ ”。 when表示 “ 就在那时 ” 时 , 常见句式及意义如下: ① He was talking about his plans when suddenly the lights went off. 他还在喋喋不休地讲着他的计划 , 这时灯突然灭了。 ② I was about to go to bed when someone knocked at the door. 我正要上床睡觉 , 这时有人敲门。
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