Unit 4 Global warming
unit 4 global warming一、語言要點i單元要點預覽（旨在讓同學整體了解本單元要點）
詞匯
部分
詞語
辨析1.consequence/result/effect/outcome 2. glance/gaze/glare/stare
詞形
變化1.agree v.同意disagree v.不同意agreement/disagreement n.同意/不同意2. exist v.存在existence n.存在3.state v.陳述，說明statement n.聲明，闡述4. environment n.環(huán)境environmental adj.周圍的，環(huán)境的environmentalist n.環(huán)境保護主義者
重點
單詞1. phenomenon n. 現(xiàn)象2. tend vt. 趨向, 往往是；照管, 護理3. state vt.聲明, 陳述4. range n.行列, 范圍；vt. 排列, 歸類于5. average adj.平均的 6. existence n.生存7. advocate倡導，擁護8. refresh v.(使)精神振作, (使)精力恢復, 更新9. contribution n.捐獻, 貢獻, 投稿
重點
詞組come about 發(fā)生 quantities of大量的 result in導致 be opposed to反對on behalf of代表……一方 put up with 忍受； 容忍so long as 只要
重點句子1. some byproducts of this process are called “greenhouse” gases, the most important one of which is carbon dioxide.這個升溫過程的一些副產(chǎn)品就叫 “溫室”氣體,其中最重要的就是二氧化碳.
重點語法it的用法（ii）(見語法專題)ii 詞語辨析 (旨在提供完形填空所需材料) 1). consequence/result/effect/outcome【解釋】consequence強調(diào)因某件事而引起的后果，有時帶貶義。result普通用語，指某行動，計劃或事件帶來的最終結(jié)果。effect與相對，指動作行為帶來的后果或效應。outcome側(cè)重 某項活動，比賽的結(jié)果，結(jié)局【練習】選擇consequence/result/effect或outcome并用其適當?shù)男问教羁?) the ________ of the game was beyond our expectation. 2) the _________ of the meeting was that no one should be dismissed. 3) the advertisements have much ________ on consumers’ choice. 4) in _________ of laziness, he was fired. keys: 1) outcome 2) result 3) effect 4) consequence2). glance/gaze/glare/stare 看，注視【解釋】glance一瞥，匆匆一看，強調(diào)動作的短暫gaze凝視，注視，因驚異或贊賞而長時間無意識地凝視某人或某事物glare怒視，帶有敵對或威脅的態(tài)度stare盯著看，含有無禮或粗俗的意味。【練習】選擇glance/gaze/glare或stare，并用其適當?shù)男问教羁?1) they stood at the top of the hill, _______ at the splendid sunset. 2) the manager ______ at the document and signed down his name. 3) the dog _____ at the stranger and barked. 4) don’t _______ , it’s rude! keys: 1) gazing 2) glanced 3) glared 4) stare