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1、人教版精品英語(yǔ)資料（精校版） 第四冊(cè)第二單元第四課時(shí) 閱讀導(dǎo)學(xué)案 Early sow, early mow. 種得早，收得早。 Book 4 Unit 2 Working the land Using language Learning Goals: 1. develop the students’ skills of summarizing. 2. help the students realize the importance of organic farming. Previewing (預(yù)習(xí)) Fill in the blanks with a prope

2、r word from the passage on page 14 . 1.Some can cause disease. People usually take some medicine to help them to recover. 2.If someone makes a , he or she is the first person to find or become aware of something that no one knew about before. 3. Stores of grain are frequently attacke

3、d by , especially rats. 4. If you are careful in your exam, you can mistakes you will make. 5. Plants will grow better in rich and loose . Researching in Class (課堂探究) Step 1 Leading in 1. What is the substance most farmers put on the soil to make crops grow? ________

4、____________________________________________ 2. How many kinds of fertilizers do farmers use? ___________________________________________________ Step 2 Listening & Reading & Thinking 1．Skim ea

5、ch paragraph again and find the main idea Paragraph : Long-term use of chemical fertilizers can cause damage to the land and people’s health. Paragraph : Farmers and customers turn to organic farming. Paragraph : Other methods to keep the soil fertile Paragraph : Problems

6、caused by chemical fertilizers. 2．What is “organic farming”? ( no more than 12 words) ____________________________________________________ 3．Fill the blank: The fertilizer that organic farmers prefer is

7、 . 4．Choose the best answer. （1）Which is not the reason why organic farmers prefer natural waste from animals? A. It can keep the food free from chemicals. B. It can keep the air, soil and water free from chemicals. C. It can kill harmful pes

8、ts. D. It can make the soil richer in mineral. （2）What is the advantage of using chemical fertilizers? A. Leaving chemicals in the ground for a long time is good for water supply. B. They can get the soil exhausted. C. They can kill helpful bacteria. D. They can kill h

9、armful pest. 5．What does the word“it” (Line 3,Para4 ) probably refer to？（no more than 2 words） _____________________________________________________ 6．Skim the passage again and find the main idea. can cause many problems, so

10、 is becoming more popular. Step 3 Discussing If you want to plant some crops, what kind of fertilizer will you use? Why? (Grown in clean air; free of pollution; rich in nutrition; do good to people’s health and the environment; food tastes better ) _________________________________________

11、____________ Step 4 Presenting Present the results of the discussion and answers to the questions. Step 5 Teacher’s evaluation Step 6 Testing 1. Fill the blanks with proper words. In recent years, scientists have discovered that using

12、 1 fertilizers for a long time can 2 the land and also people’s health. There are several problems 3 by chemical fertilizers. They hurt the health of the land, 4 in the water for a long time and 5 people’s bodies 6 their food. 7

13、 farming is becoming more popular 8 some farmers and many customers after these discoveries came out. Organic farming does not use any 9 . There are many organic farming methods 10 making the land healthy and productive. All of these methods try to produce good food and to keep the environment and people healthy. 2. Translation. 1.然而，最近科學(xué)家發(fā)現(xiàn)長(zhǎng)期使用這些肥料會(huì)造成土地受損，甚至更危險(xiǎn)的是，會(huì)對(duì)人們的健康造成危害。 2.他們通常每隔幾年換種農(nóng)作物，比如在種玉米或小麥后的一年種豌豆或大豆。 3.像豌豆、大豆一類的農(nóng)作物將重要的礦物質(zhì)帶回土壤，使之適宜于種植那些要求土壤肥沃的農(nóng)作物，例如小麥或玉米。