江西省吉安市井冈山大学附中高中英语 新人教版必修四《Unit2 Working the land》导学案（二）（一）导案⊙知识梳理一 、 Complete the sentences according to the text and then translate them into Chinese1. Since then, _________ ways grow more rice has been his life goal. 2. At that time, hunger was a ________ problem in many parts of the countryside.3. Yuan Longping searched for a way to increase rice harvests without_______the area of the fields.4. Just _________ for things, however, costs nothing.⊙提出疑惑同学们，通过你的自主学习，你还有哪些疑惑，请把它填在下面的表格中（二）课内探究学案⊙学习目标1. Grasp the important words, phrases and sentence structures in this period.2. Let the students know the usage of modal verbs.\⊙学习过程1. 动词-ing 形式的构成: 是在动词末尾加-ing 形式构成, 因此又叫动词的 -ing 形式。如: do-doing, be-being, ask-asking, etc.否定形式: not+ -ing 构成重点单词1.________vi. & n.斗争；拼搏；努力 2.________ vt. 使变大；伸展3. ________ adv. 因此；所以；因而4.________ vt. & vi.输出；出口 5.__________ vt. & n. 遗憾；惋惜；懊悔6 .________ vt. 减少；减缩重点短语1. ________to 幸亏；由于；因为 2.________of 使……摆脱或除去3. be________with 对……感到满意 4. ________up 逐渐增强；建立；开发 5.__________to 导致；造成（后果） 6._________on 集中（注意力、精力）于 7. keep______from/of 使……免受（影响、伤害等）；使……不含（有害物）重点语法The –ing form as the Subject and Object疑惑点疑惑内容 12. 动词-ing 形式不能单独作谓语, 没有人称和数的变化, 但可以有自己的宾语和状语, 还有时态和语态的变化。3. 动词-ing 形式由动词加-ing 变化而成, 它同时具有名词和动词的特征, 在句中可以作主语、宾语等。一、动词-ing 形式作主语 1. 表示经常的、习惯性的动作或状态, 谓语动词通常用单数。如： Walking is a good form of exercise for both young and old. 无论对年轻人和老年人来讲, 走路是一种很好的锻炼。Watching news on TV h...
