RX 高一(下)必修四 Unit 2 Using Language教材课程.pptx

Unit 2 Working the land Using language;;It is fertilizer. ;How many kinds of fertilizers do farmers use? There are two kinds. They are chemical fertilizers and natural ones. ;chemical fertilizer;Organic Farming;;Chemical farming;Organic farming ;suggestions;* grown in _______ air * free of p________ * ____ _____ nutrition * do ______ to people’s health and the e___________ * Food tastes ________;Methods of organic farming;Methods of organic farming;What are the disadvantages of using chemical fertilizers?;Language points; It is important to explain this again or we will confuse the students. 　　 confuse 动词, 表示“把(某人)弄糊涂; 使迷惑”, “搞乱; 混淆”。 confusion 名词 “混乱; 慌乱; 混淆” 如: They asked me so many questions that they confused me. 他们问我那么多问题把我都弄糊涂了。;My Chinese and English books are confused together. 我的中英文的书籍混在一起了。 He was confused by a strange idea. 他被奇怪的念头弄糊涂了。 Please don’t confuse Australia with Austria. 别把澳大利亚和奥地利混淆了。;confusing和confused辨析: Confusing 意思是“莫名其妙的; 难以理解的 (difficult to understand; puzzling)”, 强调事物本身所具有的性质; Confused 意思是“糊涂的; 迷乱的(unable to think clearly)”, 强调人对某事物的感受。;2. His father says that he has never regretted sending his son to study abroad. regret 在句中作动词, 意为“为……感到遗憾; 后悔; 惋惜”。如： I didn’t regret the choice I had made. 我做了这个选择并不后悔。 I regret to say that we can’t stay here any longer. 我很遗憾, 我们不能再在这儿多呆了。 She regretted having missed the film. 她懊悔没能看上那场电影。 ;;3.… killing the helpful bacteria and pests as well as the harmful ones.;;4. These chemicals in the food supply build up in people’s bodies over time. build up ?增强; 建立; 开发 Hard working conditions build up character. 艰苦的工作条件能磨练人的性格。;5. Many of these chemicals can lead to cancer or other illnesses. lead to: 导致; 造成 Too much work and too little rest often lead to illness.? 过量的工作和过少的休息会引起疾病。 All roads lead to Rome.? 条条大道通罗马。;turn to 求助于，转向 ;turn on 打开， 开启 turn off 关掉 turn down 调小 turn up 调大 turn against sb./sth. 转而讨