Unit 5 Revealing nature大单元“四步复习法”学案-高中英语外研版（2019）选择性必修第一册.docx

Unit 5 Revealing nature高二英语外研版（2019）选择性必修第一册大单元“四步复习法”第一步：单元学习目标整合1. 学生细读课文获取课文的主旨大意；叙述类文本的结构及语言特点，并按照事件发展顺序梳理Darwin的发现之旅2. 学生可以通过呈现课文中的语句，帮助学生归纳总结过去完成时的用法3. 学生能够掌握观察日志的内容特点，文体特点和写作手法第二步：单元思维导图回顾知识第三步：单元重难知识易混易错过去完成时过去完成时是很重要的动词的时态，也是学生在使用中常常出错的语法项目，教师应引导学生在了解其基本概念和用法的基础之上，深刻理解“过去的过去”的含义，并在活动中加以体会，最终掌握并灵活运用。一、过去完成时的基本用法：（1）表示在过去的某一时间或某一动作之前完成的动作或存在的状态，即“过去的过去”。例如：a. Before we got to the train station, the train had already left.我们到达火车站之前，火车就已经离开了。b. Before I could say "thank you", he had run away.我还没来得及说谢谢，他就跑开了。（2）表示从过去某一时间开始，一直延续到过去的另一个时间的动作，常用的时间状语有by then, by the end of, by the time。例如：a. By the end of last term, we had learnt 2,000English words. 到上学期期末为止，我们已经学习了2,000个英语单词了。b. They had lived there for ten years by then.到那时为止，他们已经在那里住了10年了。（3）表示愿望、打算等的动词，如hope, want, expect, think, mean, suppose, intend, plan等后接从句时,一般用过去完成时表示本打算实现而未实现的愿望和计划。例如：a. I had intended to meet him at the airport, but I had an important meeting to attend.我本打算去机场接他，但是我有个重要的会议要参加。b. I had hoped to take a holiday this year but I was not able to get away.我原打算今年去度假，可是我离不开。（4）在句型hardlywhen和no soonerthan中，主句用过去完成时，从句用一般过去时，表示“一就”。例如：a. Hardly had I left when it began to rain.我刚离开就开始下雨了。b. No sooner had he sat down than the telephone rang.他刚坐下，电话铃就响了。练习：1.I _(think) you would come the next day, but you didn't.2.He _(learn) English for five years before he moved to Australia.3.It was the second time that he _(come) to Wuhan.4.By the end of last term we _(finish) reviewing six books.5.They stole my wallet, because I _(forget) to lock the locker.答案：1.答案：had thought2.答案：had learnt3.答案：had come4.答案：had finished5.答案：had forgotten第四步：单元核心素养对接高考语法填空The Miracle of LoveA college professor had his sociology class go into slums（贫民窟）to get case histories (个案史) of 200 young boys. They were asked to write an _ (evaluate) of each boy's future.In every case the students wrote, “He hasn't got _ chance.” Twenty-five years later another sociology professor came across the _ (early) study. He had his students follow up on the project to see _ had happen to these boys. With the exception of 20 boys who _ (move) away or died, the students learned that 176 of the _ (remain) 180 had achieved more than ordinary success as lawyers, doctors and businessmen. The professor was _ (shock) and decided to pursue the matter further._ (fortunate), all the men were in the area and he was able to ask each one, “How do you account _ your success？”In each case the reply came with feeling, “There was a teacher.” The teacher was still alive, so he sought her out and asked the old but still alert (思维敏捷的) lady what magic formula（方法）she had used _ (pull) these boys out of the slums into successful achievement. The teacher's eyes sparkled and her lips broke into a gentle smile.“It's really very simple,” she said. “I loved those boys.”答案：evaluation a earlier what had moved remaining shocked Fortunatelyforto pull解析：考查名词。由句意可知，他们被要求对每个男孩的未来写一份评价，故此处应该使用其名词形，式evaluation。考查不定冠词。根据语境可知，此处应用不定冠词，意思是“他没有机会”。考查形容词的比较级，这里应该用形容词的比较级形式，表示“更早的那个研究”。考查名词性从句。根据语境可知，他让他的学生继续研究这个项目，看看这些男孩到底出了什么事。故what引导宾语。考查动词时态。根据语境可知“move”所表示的动作发生在过去的过去，因此这里应使用过去，完成时。考查现在分词作定语。由语境可知，这里用现在分词形式作定语，修饰后边的180。考查非谓语动词的过去分词形式作表语。设空处与空前的was构成系表结构，且主语是The professor，因此此处应填shocked。考查副词。根据语境可知，此处表示“幸运的是”，故应使用副词形式Fortunately。考查介词。account for为固定搭配，意思是“解释”，本句意思：你如何解释你的成功？考查非谓语动词不定式作目的状语。句意：她用了什么神奇的方法把这些男孩从贫民窟拉出来，取得了成功。故填to pull。4学科网（北京）股份有限公司