【正文】 小麥漲價了。 * advanced a. 在前面的；先進的，開明的；高級的，高等的；年邁的advanced position 一處前沿陣地Ancient Greece was an advanced civilization. 古希臘是個先進的文明國家。My younger sister studied advanced math. 我妹妹學(xué)過高等數(shù)學(xué)。His grandfather died at an advanced age of 98. 他祖父在九十八歲高齡時去世。Lesson 4 1. practical adj. 實踐的,實際的；實用的 ；講究實際的；可實施的Practical experience is often very important. 實踐經(jīng)驗往往是很重要的。Your invention is very practical. 你的發(fā)明很實用。She was a simple, practical, hardworking woman. 她簡樸,實際,勤奮。He gave sound and practical advice. 他提出了很好的,實際可行的建議。2. bath n. I am going to take a bath. 我打算洗個澡。 The bath is too hot. 洗澡水太燙了。3. signal n. A red lamp is used as a danger signal. 紅燈用作危險信號。The train must stop when the signal’s red. 信號機是紅色時,火車必須停駛。4. focus vt. 使聚焦[(+on)]，調(diào)節(jié)(鏡頭等)的焦距[(+on)] ； 集中[(+on)] [名校學(xué)案：]You can focus your telescope on that distant television tower. 你可以對著……調(diào)節(jié)望遠(yuǎn)鏡的鏡頭。He focused the camera and took a photo. 他對好焦距，照了一張相。 When studying, he focused his mind on his lessons. 讀書時，他集中心思于功課上。 I can’t focus my thoughts today. 今天我的思想集中不起來。* n. 焦點，焦距；中心，集中點，重點[the S][(+of)]The focus of this chapter is the American Revolution. 本章的重點是講美國獨立戰(zhàn)爭。She always wants to be the focus of attention. 她老想成為人們注意的中心。5. flash vi. 飛馳，掠過 e and go suddenly；閃光，閃亮send out a sudden light；The cars flashed by. 小汽車飛馳而過。 An aeroplane flashed across the sky. 一架飛機在空中掠過。 The idea flashed through his mind. 他腦子里內(nèi)過一個念頭。 Her eyes flashed fire. 她的眼睛閃現(xiàn)著熱情。 A lighthouse was flashing in the distance. 燈塔在遠(yuǎn)處閃光。 A little light flashed on the wall. 墻上的一個小燈亮了。* vt. 突然而短促地發(fā)出（光或火）He flashed the light in her eyes. 他用光對著她的眼睛突然一照。 Her eyes flashed fire. 她的眼睛閃現(xiàn)著熱情。 * n. 閃光 very sudden, quick, bright light A flash of lightning is electricity jumping. 電光一閃是跳線。 A flash of lightning hit the tree. 雷電打在樹上。 a flash in the pan 曇花一現(xiàn) a flash of hope 一絲希望 * in a flash 剎那間 I saw it in a flash. 我在一剎那間看見了它。 6. electric adj. 電的；導(dǎo)電的；發(fā)電的；用電的；電動的worked by electricity；極其強烈的an electric bell 電鈴 an electric chair 電椅 an electric clock 電鐘 an electric current 電流 an electric fan 電扇 an electric generator 發(fā)電機 an electric heater 電熱器 an electric iron 電熨斗 an electric lamp 一盞電燈 an electric torch （手）電筒 electric waves 電波 an electric stove 電爐electric light 電燈光，電燈 a toy electric motor 一臺玩具電動機 The child likes electric toys. 這孩子喜歡電動玩具。 Some electric wells have been built. 已打了幾眼機井。 I got an electric shock from the wire. 我被這根電線電擊了一下。His speech had an electric effect on the audience. 他的演講令觀眾震驚不已。 [名校學(xué)案：]* electrical adj. 與電有關(guān)的，電氣科學(xué)的 concerning electricity He is an electrical engineer. 他是個電氣工程師。Communication Workshop 1. contact n. 交往。 聯(lián)絡(luò),聯(lián)系[with] a point of contact = a contact point 接觸點,觸點 be in [out of] contact with... 與……有[沒有]接觸[聯(lián)絡(luò),交往]e in [into] contact with... 與……接觸[聯(lián)系]； 碰見stay [keep] in contact with... 與……保持聯(lián)系 lose contact with... 與……失去聯(lián)絡(luò) make contact with... 與……聯(lián)絡(luò) I don’t usually have much personal contact with him. 我平常很少與他有私人上的往來。 * vt. 與……接觸。與……聯(lián)系I will contact him by telephone. 我將打電話和他聯(lián)系。Contact the police immediately. 立刻與警方連絡(luò)。 2. replace vt. 放回原處； put something back in its place again； 替換；取代；輪換put one thing in place of another thing [名校學(xué)案：]Let’s replace the things exactly as they were before. 讓咱們把這些東西放回原處。 She replaced the receiver. 她將聽筒放了回去。The brakes have to be replaced. 剎車需要更換。Electric lights have replaced candles. 電燈已經(jīng)取代了蠟燭。More new machines will be installed to replace the old ones. 將安裝更多新機器來代替舊機器。 Lao Yang was elected to replace Lao Zhu in the mittee. 老楊當(dāng)選為委員，來代替老朱。 Culture Corner Bulletin Board15用心 愛心 專心