大學(xué)體驗(yàn)英語一周一練3

前言

　　近年來，隨著我國社會和經(jīng)濟(jì)的迅猛發(fā)展、國際交往的日益頻繁，國家和社會迫切地對大學(xué)生的英語綜合應(yīng)用能力尤其是聽說技能提出了更高的要求。大學(xué)英語教學(xué)又面臨著新的挑戰(zhàn)，這使得大學(xué)英語教學(xué)必須進(jìn)一步深化。另一方面，我國的大學(xué)英語教學(xué)環(huán)境正在逐步改善，多媒體、網(wǎng)絡(luò)等現(xiàn)代教育手段的發(fā)展使大英語教學(xué)多樣化、個(gè)性化有了可能。許多教師已經(jīng)開始利用多媒體和網(wǎng)絡(luò)技術(shù)進(jìn)行英語教學(xué)改革，以彌補(bǔ)傳統(tǒng)教學(xué)的不足，并取得了一定的成績?；谟?jì)算機(jī)／網(wǎng)絡(luò)+課堂教學(xué)的教學(xué)模式日漸普遍?！　〗逃?007年頒布的《大學(xué)英語課程教學(xué)要求》貫徹了分類指導(dǎo)、大力推廣應(yīng)用信息技術(shù)、共享優(yōu)質(zhì)教育資源的原則和方針。提出加強(qiáng)聽說，同時(shí)也更重視培養(yǎng)閱讀理解能力、翻譯技巧和基本寫作能力等英語綜合應(yīng)用能力的要求；注重以學(xué)生為主體、促進(jìn)個(gè)性化學(xué)習(xí)和自主學(xué)習(xí)。因此，大學(xué)英語教學(xué)課時(shí)數(shù)在一定程度上進(jìn)行了縮減，包括聽力課課時(shí)。而全國四、六級英語考試聽力部分分值和題型都在這一改革的背景下進(jìn)行了很大程度的調(diào)整，增加了考查學(xué)生應(yīng)用能力的題型，聽力分值也由原來的20％提高到了35％。新的要求給大學(xué)英語教學(xué)帶來了壓力和挑戰(zhàn)。　　因此，我們必須致力于探索在學(xué)時(shí)減少、對聽說能力要求提高的情況下，如何加強(qiáng)對學(xué)生學(xué)習(xí)策略能力的訓(xùn)練，培養(yǎng)學(xué)生自主學(xué)習(xí)的新模式?！　　洞髮W(xué)體驗(yàn)英語一周一練》為大學(xué)體驗(yàn)英語課外練習(xí)系列，共分四冊，供普通院校非英語專業(yè)一、二年級學(xué)生及有相當(dāng)水平的學(xué)習(xí)者使用?！　?shí)踐性是外語教學(xué)的特征。如何使練習(xí)題具有較強(qiáng)的實(shí)踐性，題型設(shè)計(jì)至關(guān)重要。本書提供了大學(xué)英語一至四級的試題練習(xí)，每冊十個(gè)單元，分別供一至四學(xué)期使用?？紤]到使用一冊的學(xué)生聽力相對較弱，因此練習(xí)題針對學(xué)生水平，遵照循序漸進(jìn)的原則進(jìn)行設(shè)計(jì)。二至四冊則嚴(yán)格按照大學(xué)英語四級考試標(biāo)準(zhǔn)題型編寫，經(jīng)過反復(fù)審查、修改、提煉、測試最終得以完成。練習(xí)題還具有較強(qiáng)的實(shí)用性和一定的趣味性。教師可以根據(jù)教學(xué)進(jìn)度和學(xué)生學(xué)習(xí)情況選擇試題進(jìn)行測試，或者指導(dǎo)學(xué)生進(jìn)行自主學(xué)習(xí)?！　”緯柯犃?nèi)容由資深外籍專家朗讀，并隨書附MP3光盤以方便學(xué)生使用?！　∮捎诒緯帉憰r(shí)間較為倉促，編寫人員水平有限，書中不完善之處在所難免，懇請使用本書的廣大師生提出寶貴意見和建議，以便我們今后的修訂、提高和完善。

內(nèi)容概要

《大學(xué)體驗(yàn)英語一周一練》為大學(xué)體驗(yàn)英語課外練習(xí)系列，共分四冊。本書提供了大學(xué)英語一至四級的試題練習(xí)，每冊十個(gè)單元，分別供一至四學(xué)期使用。二至四冊嚴(yán)格按照大學(xué)英語四級考試標(biāo)準(zhǔn)題型編寫。

書籍目錄

Model Test 1Model Test 2Model Test 3Model Test 4Model Test 5Model Test 6Model Test 7Model Test 8Model Test 9Model Test 10

章節(jié)摘錄

　　Breaking nicotine addiction is not easy. Each year, nearly 35 million people make aconcerted effort to quit smoking. Sadly, less than 7 percent succeed in abstaining for morethan a year; most start smoking again within days. So what is nicotine and how does it in-sinuate itself into the smokers brain and very being？　　The nicotine found in tobacco is a potent drug and smokers, and even some sci-entists say it offers certain benefits. One is enhance performance. One study found thatnon-smokers given doses of nicotine typed about 5 percent faster than they did withoutit. To greater or lesser degrees, users also say nicotine helps them to maintain concentra-tion, reduce anxiety, relieve pain, and even dampen their appetites （thus helping in weightcontrol）. Unfortunately, nicotine can also produce deleterious effects beyond addictionlAt high doses, as are achieved from tobacco products, it can cause high blood pressure,distress in the respiratory and gastrointestinal systems and an increase in susceptibility toseizures and hypothermia.　　First isolated as a compound in 1828, in its pure form nicotine is a clear liquid thatturns brown when burned and smells like tobacco when exposed to air. It is found inseveral species of plants, including tobacco and, perhaps surprisingly, in tomatoes, pota-toes, and eggplant （though in extremely low quantities that are pharmacologically insig-nificant for humans）.　　As simple as it looks, the cigarette is highly engineered nicotine delivery device. Forinstance, when tobacco researchers found that much of the nicotine in a cigarette wasntreleased when burned but rather remained chemically bound within the tobacco leaf, they began adding substances such as ammonia to cigarette tobacco to release more nicotine.Ammonia helps keep nicotine in its basic form, which is more readily vaporized by the intense heat of the burning cigarette than the acidic form. Most cigarettes for sale in the US today contain 10 milligrams or more of nicotine. By inhaling smoke from a lighted cigarette, the average smoker takes 1 or 2 milligrams of vaporized nicotine per cigarette.Today we know that only a miniscule amount of nicotine is needed to fuel addiction. Re- search shows that manufacturers would have to cut nicotine levels in a typical cigarette by 95％ to forestall its power to addict. When a smoker puffs on a lighted cigarette, smoke, including vaporized nicotine, is drawn into the mouth. The skin and lining of the mouth immediately absorb some nicotine, but the remainder flows straight down into the lungs, where it easily diffuses into the blood vessels lining the lung walls. The blood vessels carry the nicotine to the heart, which then pumps it directly to the brain. While most of the effects a smoker seeks occur in the brain, the heart takes a hit as well. Studies have shown that a smokers first cigarette of the day can increase his or her heart rate by 10 to 20 beats a minute. Scientists have found that a smoked substance reaches the brain more　quickly than one swallowed, snorted （such as cocaine powder） or even injected.

編輯推薦

　　《大學(xué)體驗(yàn)英語一周一練3第2版》注重實(shí)用表達(dá)能力的培養(yǎng)：在語言基礎(chǔ)訓(xùn)l練中加大聽力和口語的學(xué)習(xí)內(nèi)容，加強(qiáng)實(shí)用閱讀、實(shí)用會話、實(shí)用寫作的訓(xùn)練，培養(yǎng)學(xué)習(xí)者英語綜合運(yùn)用能力和在涉外交際中的實(shí)用表達(dá)能力?！　∽⒅亟滩牡目刹倬毿裕哼x文短小精悍，生動有趣，便于聽、說、讀、寫、譯的訓(xùn)練：練習(xí)設(shè)計(jì)層層深入，通過訓(xùn)練達(dá)到學(xué)懂、會用的教學(xué)目的?！　?qiáng)調(diào)以人為本，突出“個(gè)性化”學(xué)習(xí)：注重學(xué)習(xí)者在整個(gè)學(xué)習(xí)過程中自主學(xué)習(xí)的引導(dǎo)，強(qiáng)調(diào)學(xué)習(xí)者在體驗(yàn)語言的立體化環(huán)境中獲得語言知識，體驗(yàn)用英語表達(dá)和交流思想的美妙?！　≈匾曃幕R的學(xué)習(xí)，培養(yǎng)“跨文化意識”：提供大量真實(shí)的圖片、富有時(shí)代感的文字材料以及英語國家豐富的文化背景，開拓學(xué)習(xí)者的視野?！　×Ⅲw化教材為英語學(xué)習(xí)提供全方位服務(wù)：文字版、網(wǎng)絡(luò)版、電子教案以及多媒體學(xué)習(xí)課件等提供了立體、互動的英語學(xué)習(xí)環(huán)境。

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