榮德剖析

內(nèi)容概要

　　《榮德基剖析新課標(biāo)新教材：高中英語（必修4）（配人教）》是一本徹底滲透新課標(biāo)理念的教輔書。立足基礎(chǔ)，詳剖細解講教材。板塊按基礎(chǔ)、應(yīng)用、拓展、實戰(zhàn)的結(jié)構(gòu)來安排，構(gòu)建了科學(xué)嚴密的學(xué)習(xí)體系，幫助學(xué)生逐步提高知識理解及運用能力。

書籍目錄

Unit 1 Women of achievementA 助跑篇·夯實基礎(chǔ)I．教材知識·句句講B 加速篇·延伸拓展Ⅱ．一課一背·進步快Ⅲ．三易點·早知道C 沖刺篇·高考在平時Ⅳ．高考題·關(guān)關(guān)闖Unit 2 Working the IandA 助跑篇·夯實基礎(chǔ)I．教材知識·句句講B 加速篇·延伸拓展Ⅱ．一課一背·進步快Ⅲ．三易點·早知道C 沖刺篇·高考在平時Ⅳ．高考題·關(guān)關(guān)闖Unit 3 A taste of English humourA 助跑篇·夯實基礎(chǔ)I．教材知識·句句講B 加速篇·延伸拓展Ⅱ．一課一背·主生步快Ⅲ．三易點·早知道C 沖刺篇·高考在平時Ⅳ．高考題·關(guān)關(guān)闖Unit 4 Body languageA 助跑篇·夯實基礎(chǔ)I．教材知識·句句講B 加速篇·延伸拓展Ⅱ．一課一背·進步快Ⅲ．三易點·早知道C 沖刺篇·高考在平時Ⅳ．高考題·關(guān)關(guān)闖Unit 5 Theme parksA 助跑篇·夯實基礎(chǔ)I．教材知識·句句講B 加速篇·延伸拓展Ⅱ．一課一背·進步快Ⅲ．三易點·早知道C 沖刺篇·高考在平時Ⅳ．高考題·關(guān)關(guān)闖參考答案及剖析

章節(jié)摘錄

　　Soil forms from the bottom up. Over time bedrock is attacked byrain， wind， frost， and snow. It is gradually broken down into smallerparticles in a process called weathering. Plants begin to grow， and rottenmaterials enrich the topsoil. Most of the soil in Eastern Canada， forexample，was formed from weathered rock that was exposed when the icedisappeared 12，000 years ago.　　Water Beneath the Soil　　Surface water collects and flows above the ground in lakes， ponds， andrivers. Once in the soil or rock， it is called groundwater. Gravity pullsgroundwater through the soil in a process called percolation .Eventually the water reaches a layer called the water table. Under this isbedrock through which water cannot percolate.　　As water percolates downward， it dissolves organic matter andminerals from the soil and carries them to deeper layers. This causes aserious problem because plants require these nutrients for growth. Soil pH　　Soil can be acidic，neutral，or basic. The pH of the soil is determinedby the nature of the rock from which it was formed and by the nature ofthe plants that grow and rot in it.　　The acidity of rain and snow can lower the pH Of the groundwaterthat enters the soil. By burning fossil fuels such as coal，oil and gasoline，humans have been contributing to higher levels of acidity in many soils. 　　......

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