英语 七上 外研 Unit 6 第2课时 Understanding ideas (语法) 教学课件

Understanding ideas (语法)第 2 课 时beaver, wolf, engineer What animal are they?Beavers（河狸）.What are they doing?They are working. 现在进行时What are they doing?They are working.Read the sentences from the reading passage and summarise the grammar rules. (a) We’re studying birds for Bird Week at school. (b) I’m watching pigeons in the park now. (c) That pigeon is looking at itself in the water!Grammar 规律：主语 + am/is/are + doing +... (a) We’re studying birds for Bird Week at school. (b) I’m watching pigeons in the park now. (c) That pigeon is looking at itself in the water!Now find more sentences with these structures in the reading passage.A girl is feeding them.The birds are flying madly to her.I’m doing some online research.I’m reading in the library now. 用法：现在进行时用于表达正在进行的事情。现在进行时：be +动词-ing的形式He isn’t listening to music. We aren’t having a lesson.Is he listening to music?Are you having a lesson?Yes, he is./No, he isn’t.Yes, we are./No, we aren’t.When/Where/Why is he listening to music?When/Where/Why are you having a lesson?What is he doing?What are you doing?be 动词的形式和主语的单复数保持一致。The boys are playing football.Lucy is having lunch at home now.Jimmy is swimming with his father.I am lying in the sun on the beach.Read the sentences and summarise the rules of “V.-ing”.一般情况下，动词后直接加 -ing 一般情况下，以字母e结尾的动词，去掉e，然后加-ing以辅音字母 + 元音字母 + 辅音字母的重读闭音节结尾的动词，如果末尾只有一个辅音字母，双写这个辅音字母，然后加-ing特殊变化working, buying, visiting, talking, sayingtaking, having, leaving, driving, writing, makingstopping,shopping,sitting,gettinglie-lying stand watch jump 1. Look! The rabbit __________ one metre high!2.--The horse is sleeping. --l can't believe it. It __________. Can it sleep like that?3. Ssh! I_____________ the cat in the tree.is standing am watching is jumping Read and complete the sentences with the correct form of the words in the box.12 1.找时态标志词2.看主语定be形式3.动词变形加ingThe new camera looks like a real beaver! We put it by the river. Now we 1 ___________(watch) the beavers. Look! One beaver 2 _________ (cut) a tree with its teeth. And the other two 3 _________ (put) the sticks in the river. They want to make a pool. But what’s it for? Oh, I see! They 4 _________ (build) their home in it. The pool will protect them from wolves, bears, etc. This is amazing!Now the work is done! Two beavers 5 ___________ (swim) in the pool. The other one 6 _________ (try) to find food. It’s such nice work. Beavers are really “nature’s engineers”!are watchingis cutting are puttingare buildingare swimmingis tryingComplete the passage using the correct form of the verbs in brackets.I.单项填空1.（湖南怀化中考）—May I use your dictionary?— Sorry，I ________ it now.A. am using B. use C. used2.（天津中考）—Where is Mum?— In the living room. She _________ a book at the moment.was reading B. will read C. is reading D. has read3.（北京中考） — Peter，what are you doing? — Oh，I _______ a report about national heroes. will write B. am writing C. wrote D. have written 4. （江西中考） —Sssh! Be quiet. I’m on the phone. —Who _______ you _______ to，Mom? A. do；speak B. are；speaking C. will；speak D. have；spoken II.用括号内所给词的适当形式填空1.（甘肃天水中考）Look! The students _______________（answer）the questions carefully.2.（兰州中考B卷）Some children are __________（play）soccer on the playground now.3. Look! They ____________ （put）up lights in the tree for the Spring Festival.are answeringplayingare putting Find a video and do your own voice-over for it. Use the words and expressions from the reading passage and the Useful expressions to help you. Amazing animalWhat animal is it?What is it doing?What is special about it?What do you think of it?Useful expressions• It is a...• It looks like...• Look, it’s...• It can...• It has long / big...• People call it...• It eats...• It’s amazing / clever / ...• How surprising / amazing! ...Homework