module2developinganddevelopedcountriesperiodfourgrammar：links課件外研版必修3，課標通用-資料下載頁
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【導讀】的詞性、用法各有不同。它的語氣比but的弱，不直接引出相。他如果不給你一個違章通知單就放你走，那是你運氣好。過，這種事不是常有的。我很想和你一塊兒去，可是我很忙。常放在句首，并用于正式場合。我很想出去，雖然正下著小雨。雖然下著雪，但并不是很冷。although沒有這種用法。as引導的讓步狀語從句必須倒裝。雖然窮但他過得很開心。audience.盡管這個女演員還是個孩子，卻吸引著很多觀眾。詞，常置于句末，句子較長時，也可置于句中。傷到她的感情一事，還是不可原諒。butheishappy.雖然獨自生活，但他很開心。while是連詞，意為“但，卻，然而”。于引出相反的情況。while多用于表對比，而且前后兩個分句在結(jié)構(gòu)上對稱。but是常用詞，表示語意上的轉(zhuǎn)折關系。于讓步狀語從句的范疇。基本用法可知選A，though用作副詞時表示轉(zhuǎn)折。對比的地點、事物等進行描寫、說明。1．對所給的要點不要簡單翻譯，要有適當發(fā)揮；
【正文】 【 典例展示 】 重點語法精析 解碼書面表達 勤思巧學園地 It hadn39。t. After monitoring production of the Jarvik7， and reviewing its effects on the39。150 or so patients (most of whom got the device as a temporary measure) the U． S. Food and Drug Administration concluded that the machine was doing more to endanger lives than to save them. Last week the agency cancelled its earlier approval, effectively banning(禁止 )the device. 重點語法精析 解碼書面表達 勤思巧學園地 The recall may hurt Symbion Inc., maker of the Jarvik7，but it won39。t end the request for an artificial heart. One problem with the banned model is that the tubes connecting it to an external power source created a passage infection. Inventors are now working on new devices that would be fully placed, along with a tiny power pack, in the patient39。s chest. 重點語法精析 解碼書面表達 勤思巧學園地 The first sample products aren39。t expected for another 10 or 20 years. But some people are already worrying that they39。ll work and that America39。s overextended health care programs will lose$ billion to$5 billion a year providing them for a relatively few dying patients. If such expenditures(開支 )cut into funding for more basic care， the effect could actually be a decline in the nation39。s health. 重點語法精析 解碼書面表達 勤思巧學園地 According to the passage the Jarvik7 artificial heart proved to be________. A． a technical failure B． a technical wonder C． a good lifesaver D． an effective means to treat heart disease 1. 重點語法精析 解碼書面表達 勤思巧學園地 解析 結(jié)合題干和選項可知 ， 題干問的是 the Jarvik7 artificial heart最終的 ” 命運 ” 和定位 。 文章一開頭說 Jarvik7是一大技術成就 ， 但文章又提到： ...the U． and Drug Administration concluded that the machine was doing more to endanger lives than to save them. Last week the agency cancelled its earlier approval, effectively banning the 此可判斷答案為 A。 答案 A 重點語法精析 解碼書面表達 勤思巧學園地 The new models of artificial hearts are expected________. A． to have a working life of 10 or 20 years B． to be set fully in the patient39。s chest C． to be equipped with an external power source D． to create a new passage for infection 解析 跳讀文章 ， 在文中尋找與題干中的關鍵詞 the new models of artificial相關的語句： Inventors are now working on new devices...in the patient‘s B。 答案 B 2．
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