【正文】 physicist physical ；物理(學(xué))的；物質(zhì)的 【練習(xí)】用括號內(nèi)所提供詞的適當(dāng)形式填空?！揪毩?xí)】根據(jù)句子的意思在括號里填入適當(dāng)?shù)脑~。1). Will you please speak ______? 2). It is good for you to read English ______ every morning. 3). The bomb exploded ______.4). Is her voice ______ enough ?5). Action speaks ______ than words (事實(shí)勝于雄辯). 2. unlike / dislike【解釋】unlike prep. 不像，和……不同 adj. [作表語] 不相似；不同dislike vt./n. 不喜愛，厭惡【練習(xí)】根據(jù)句子的意思在括號里填入適當(dāng)?shù)脑~。Unit 4 Astronomy: the science of the stars單元要點(diǎn)預(yù)覽詞匯部分詞語辨析1. loudly / loud / aloud 2. unlike / dislike 3. remain / leave4. climate / weather 5. now that / since / because / as 詞形變化1. violent adj.強(qiáng)暴的，猛烈的violence ，強(qiáng)暴；猛烈violently adv. 強(qiáng)暴地；猛烈地2. fundamental (礎(chǔ))的n.[pl.]基本原則(法則) fundamentally adv. 基本地；根本地 fundament n. 基礎(chǔ)；根本3. development n.生長，發(fā)展；新情況develop vt.發(fā)展；產(chǎn)生 ；發(fā)展developed adj. 發(fā)達(dá)的developing adj. 發(fā)展的4. lay ；擺設(shè)；產(chǎn)(蛋) laylaidlaidlayinglie vi. 躺，平放；位于lielaylainlyinglie n.amp。1). A good hotel manager should know his regular guests’ likes and ______.2). Her latest novel is quite ______ her earlier work.3). If you go on like that you’ ll get yourself _______ (like).4). I was very interested in the lecture, ______ many of the students.3. remain/leave【解釋】remain vi. 仍然是；留下；剩下常用句型：remain + n. 仍然是 remain + adj./adv./prep. 仍然是 remain + ved/ving 仍然是 remain to be done有待去做，依然要做leave vt. 剩下，忽略或未拿或未帶（某物），使或讓（某人、事物）處某狀態(tài)﹑某地等常用句型：leave sb. sth. / leave sth. to sb. 給某人留下某物leave sth (for sb) 留下，交待下(某物) leave sth to sb 將某物遺贈給某人remaining/left兩者都可以作形容詞，表示“剩下的”，前者用于被修飾的名詞之前，后者用于被修飾的名詞之后。1). We shall go out for a piic tomorrow if the _______ is fine.2). A drier _______ would be good for your health.3). I couldn’t imagine what it would be like to live in a hot ________. 4). The _______ of our country is mild, but individual places experience bad ________. 5. now that / since / because / as【解釋】都可引導(dǎo)原因狀語從句，語氣最強(qiáng)的是because，引導(dǎo)直接而明確的原因，也用來回答why的問句或用于強(qiáng)調(diào)句型；其次是since/now that，表示已知或明顯的原因，再次是as，引導(dǎo)的原因是不言而喻、顯而易見的；for引導(dǎo)的是并列分句，表推測或判斷的原因，前面有逗號隔開。1). The naughty boy _______ (lie) to me that the hen that _______ (lie) there just now had ______ (lay) two eggs the day before.2). In my opinion, ________ (prevent) is more important than treatment.3). Some programs on the Internet are full of ________ (violent) and sex.4). With the ________ (develop) of modern industry, more and more pollution is caused.5). China is a ________ (develop) country belong to the third world.6). There are ________ (fundament) differences between your religious beliefs and mine.7). His ambition is to bee a great ________ (physics).Ⅲ.重點(diǎn)詞匯1. system n.[c] 系統(tǒng)；體系；制度；方法 systematic adj 有系統(tǒng)的。1). The ______ ______ (教育系統(tǒng)) operates very differently in the US and China.2). He introduced us a welldesigned ______ ______ (鐵路系統(tǒng)).2. lay vt. (laid, laid, laying) 把放下；擺設(shè)；鋪(地毯) ；產(chǎn)(蛋)[典例]1). He laid his hand on my shoulder. 他把手放在我的肩上。[重點(diǎn)用法]be harmful to sb./sth. 對……有害 do harm to sb.= do sb. harm = harm sb. 對……有害；傷害……[練習(xí)] 根據(jù)句子的意思在括號里填入適當(dāng)?shù)脑~或翻譯。1). This plant ______ only ______ Australia. 2). Can you ______ ______ such a low salary?3). I doubt the ______ (exist) of alien.5. puzzle vt.amp。1). To explain the ________ (puzzle) findings, he offers two theories. 2). I _______ (puzzle) that I haven’ t heard from Liz for so long.3). She listened with a _______ (puzzle) expression on her face.4). No one has yet succeeded in explaining the _______ (puzzle) of how life began.5). He _______ (puzzle) what to do next.6). _______ _______ _______ (使我困惑的事情) is why he left the country without telling anyone.6. pull ，拖，拔；移動 ，拖；拉(引)力[典例]1). You push and I’ ll pull. 你來推，我來拉。 vi. (使)高興、振奮；(對)歡呼 cheerful cheerless [典例]1). The crowd cheered loudly as the Queen appeared. 女王出現(xiàn)時(shí)群眾高聲歡呼。[重點(diǎn)用法]begin/start with 從……開始 begin/start sth with 從……開始…… [練習(xí)] 根據(jù)句子的意思完成句子。1). They sent the mail to me just _______ _______, before I 1eft.2). William arrived at the theatre just _______ _______ for the play was to be on. 3). Hurry up! The concert will begin _______ _______ _______. 4). _______ _______ _______ will I give up. 5). The boy laughed and cried _______ _______ ______ ______.6). _______ _______ _______ he was addicted to playing web games, but now he devotes himself to writing, which delights his parents.7). Don’t try to do everything at once。_____________________________________________________________________3). 今天輪到誰發(fā)言了？_____________________________________________________________________4. prevent...from = stop...from = keep....from 使……不做事；阻止……做某事[典例] His back injury may prevent him from playing in tomorrow’ s game. 他背部的傷可能使他參加不了明天的比賽。_____________________________________________________________________5. block out 擋?。ü饩€）[典例]That wall blocks out all the light. 那堵墻把光線都遮住了。[短語歸納] off短語：get off 下車 fall off 從……摔下來 take off 脫下；起飛 keep off 遠(yuǎn)離 turn off 關(guān)閉 pay off 付清，還清 set...off 給……送行 kick off 踢球jump off 跳下 give off 散發(fā) show off 炫耀 shut off 關(guān)閉 [練習(xí)] 用turn短語填空或翻譯。[重點(diǎn)用法]watch out for sb/sth 警惕或注意某人/事物 watch over 保護(hù)；照看 [練習(xí)] 用watch短語填空。例如：1). Here is a message for you from your head teacher: you are to go to her office after class. 你的班主任給你一個(gè)口信，要你下課后到她的辦公室去。[練習(xí)] 完成句子或翻譯。[解釋] 此句中的made后跟帶形式賓語it的復(fù)合結(jié)構(gòu)，其中it是形式賓語，真正賓語是不定式復(fù)合結(jié)構(gòu)，“for live to begin to develop”，賓語補(bǔ)足語是possible。4). I think/find/feel/consider it my duty to help 。_____________________________________________________________________3. But when I tried to step forward I found I was carried twice as far as on the earth and fell ，我發(fā)覺我被送出去很遠(yuǎn)，步子的跨度竟是地球上的兩倍，因而我摔倒了。[解釋] twice as ... as... 是的兩倍，英語常見倍數(shù)的表示句型：1). 倍數(shù) + as + adj./adv. + as “是……的幾倍” My room is twice