浙江省2013年高中英語 Unit3 Computers疑難解析 新人教版必修2

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1、Section 2 Notes to difficult sentences from Unit 3 Computers 1. Over time my memory has developed so much that, like an elephant, I never forget anything I have been told! 漸漸地我的記憶發(fā)展如此之大，以至于，像個大象一樣，我不會忘記別人告訴我的任何事情。 注意本句主句也可以改寫為：… my memory became so large that，like an elephant, I could never forget

2、…! 也就是變?yōu)椤爸?系-表結構”，即：memory的表語可以是large。 Over time: As a result, nacre thickness is sometimes just a cosmetic layer that can wear thin over time. 所以真珠質的厚度就像臉上化妝品，不久就會磨薄了。 2. I have been used in offices and homes since the 1970s. 從二十世紀七十年代起，我就為在辦公室和家庭中為人們使用。 本句謂語動詞是“現(xiàn)在完成被動式”?，F(xiàn)在完成時被動語態(tài)可用來強調發(fā)生在過去的被動性

3、動作對現(xiàn)在造成影響。例如：This work has been finished, you may have a rest.這項工作已被完成，你可以休息一會兒。This book has been read by me, you needn't tell me anything about it.這本書已被我讀完，你沒有必要告訴我有關它的任何東西?，F(xiàn)在完成時被動語態(tài)還可強調到目前為止某被動性動作或狀態(tài)已存在若干時間。This film has been put on for half an hour.這場電影已放映了半個小時。 3. I am now truly filled with ha

4、ppiness that I am a devoted friend and helper of the human race! 我現(xiàn)在充滿了幸福感，成了人類的好朋友好幫手！ 注意副詞truly在句中的位置。副詞，如always, usually, often, sometimes, never 等，一般位于句中，有時也可以位于句首或句尾。 （1）位于實義動詞之前。例如：He always reads English in the morning. I often go to work at eight in the morning. I hardly ever heard him sin

5、ging. （2）如果句中含有情態(tài)動詞或助動詞，頻度副詞通常放在這類動詞之后，行為動詞之前；如果句中有 be 動詞，頻度副詞常常放在其后。例如：You must always read English in the morning. He has never been late. Tom is sometimes late for school. （3）當 often 前面有 very 或 quite 修飾時， often 通常置于句尾。例如：He comes to my house very often. He is late for the meeting quite often. sometimes 可置于句首，且句子不用倒裝。例如：Sometimes they play football on Sundays. (=They sometimes play football on Sundays