book4_unit2_using_language_reading教材课程.ppt

; What is the matter we put on the soil which makes crops grow ? It is fertilizer. ; chemical fertilizers natural fertilizers;Now, which one do you prefer?;;; 1. What is organic farming? Farming without using chemicals. 2. What is the goal of using organic farming methods? To grow good food and avoid damaging the environment or people’s health.; Part 1 (Para.1-2) Chemical farming part 2 (Para. 3-4) Organic Farming;Task2: Para 1. Read and answer.;Task4: Para. 2 Read and fill the form.;Task4: Para. 3 True or False;To make the soil richer in minerals and therefore makes it more fertile.;;Changing the kind of crop in each field every few years.;;Situation 1: The farmer is using fertilizers to keep the vegetable free from pest.;Situation 2: Lao Wang grows soybeans in his field last year and grows corns this year.;Situation 3: Lao Li throw the nitrogen fertilizer(氮肥) in his field to make his soil rich in minerals.;Situation 4: Li Hua only use natural fertilizers to grow his cabbage. That’s why his cabbage is damaged by pests.;;Let’s learn the language points in Unit 2 together. Are you ready? Go!;1. confuse [读一读] 指出划线单词的词性和意义。 ⑴ It is important to explain this again or we will confuse the students.(P13) (词性 ____； 意义______________) ⑵ The instructions were very confusing and I couldn’t understand them. (词性 ____； 意义______________);⑶ The little girl was very confused by all the noise and activity. (词性 ____； 意义___________) ⑷ There was some confusion as to whether we had won or lost. (词性 ____； 意义___________);[练一练] 用confuse的正确形式填空。 ⑴ He was depressed and in a________ state of mind. ⑵ The instructions on the box are very__________.;⑶ There is some_________ about what the correct procedure should be. ⑷ People often _________ me and my twin sister.; confuse vt.使迷/困惑 confusion n. 迷惑，困惑 confuse A with B把A混为B ;1.These chemicals in the food supply build up in people’s bodies over time. build up:变得更大、更多或更强