Unit 5 第3课时 Communicate&Extend（教学课件）英语沪教版六年级上册（新教材）

Unit 5 How do inventions change our lives? Communicate - Extend 沪教版六上·新教材 能听懂、读懂关于鲁班发明锯子的故事，理解发明过程与关键细节。 能认读核心词汇和句型。 能理解“invention”的含义，并列举中国古代其他重要发明。 能根据故事内容完成填空、匹配、排序等练习，正确使用过去时态描述发明过程。 能用核心句型复述鲁班发明锯子的经过。 能结合生活经验，用简单英语描述一项发明的用途。 能联系实际，讨论并写出自己最喜欢的一项发明，说明它如何改变人们的生活。 能思考“发明如何改变我们的生活”，并举例说明中国发明对世界的影响。 能小组交流或展示，提出自己对未来发明的创意设想。 核心词汇：board, push down 核心句型：... was a famous inventor. A leaf cut his finger. He saw teeth on the leaf. Lu Ban made a saw. It is easy / hard / fast / slow to ... Before the invention of ..., ... After the invention of ..., .. Contents Lead-in 1 Practice 3 Homework 5 Presentation 2 Summary 4 01 Lead-in Look and say Lead-in We can travel fast with a bicycle. Look and say Lead-in We can travel faster with a car. Look and say Lead-in We can travel fastest with a high-speed train of the three. 02 Presentation Meet new words. board 【词性】名词 【短语】on board 在船上/飞机上 【例句】The teacher writes on the blackboard. 老师在黑板上写字。 【用法】可数名词，复数为boards 【拓展】联想——board（木板）↔ blackboard（黑板）——都是板子。 木板 Vocabulary /bɔːd/ Meet new words. push down 【词性】动词短语 【短语】push down the button 按下按钮 【例句】Please push down the handle to open the door. 请按下把手来开门。 【用法】动词短语，表示向下推压 【拓展】反义词——push down（向下推）↔ pull up（向上拉）——相反动作。 向下按压 Vocabulary board push down Listen and match How will Lele and his dad use simple inventions to build a tree house? cart ladder 1 2 Listen and complete The cart has four _________. It is easy to _________ a cart. With a ladder, it is _________ and easy to get up to the tree house. wheels push safe Listen and say They’ll use the cart to carry the boards. … Think and say What is your favourite invention? Why? Think and talk The Stick, think and write. Think and talk What do you think is the most important invention? I think it’s the plane because it … Stick, think and write Stick a photo of an invention you like. How did the invention change people’s lives? It was hard/slow/ … to … It took a long time … It is easier/faster/… to … Let’s read Lu Ban and the saw Lu Ban was a famous inventor in ancient China. He invented a lot of useful tools. Let’s read One day, when Lu Ban was at work on a mountain, a leaf cut his finger. Lu Ban thought, "How could such a small leaf hurt my finger?” Let’s read He looked at the leaf carefully. There were many teeth on the leaf, and the teeth were sharp. "Could I make a tool with teeth like these? It could cut things easily," Lu Ban said to himself. Let’s read Soon Lu Ban made a saw. It was the first saw in the world. People are still using it today. Let’s read Lu Ban was not the only ancient Chinese inventor. Other ancient Chinese people invented many great things, such as cuju and paper. Many have a great influence around the world. Read and complete cut many teeth a saw around the world Think and share Do you know any other Chinese inventions that have a great influence around the world? Think and share How do inventions change our lives? Inventions make our lives easier. Some Chinese inventions have a great influence around the world. … 03 Practice 一般过去时（Simple Past Tense） Lu Ban was a famous inventor. One day, a leaf cut his finger. He looked at the leaf carefully. Soon Lu Ban made a saw. Other ancient Chinese people invented many great things. Language points 一般过去时表示过去发生的动作或存在的状态。动词要用过去式。规则动词通常在词尾加 -ed（如 looked, invented），不规则动词需要特殊记忆（如 is→was, cut→cut, make→made）。 Language points 句型结构： 肯定句：主语 + 动词过去式 + 其他. e.g. He looked at the leaf. 否定句：主语 + did not (didn't) + 动词原形 + 其他. e.g. He didn't make a cart. 一般疑问句：Did + 主语 + 动词原形 + 其他？ e.g. Did Lu Ban invent the saw? 特殊疑问句：疑问词 + did + 主语 + 动词原形？ e.g. What did Lu Ban invent? Language points 情态动词 could（表示能力、可能性或委婉请求） Could I make a tool with teeth like these? “It could cut things easily,” Lu Ban said to himself. With a ladder, it is easy to get up. Language points could 是 can 的过去式，但也可以用在现在时中表示委婉的请求或可能性。我们重点掌握： 表示过去的能力（= was/were able to） 表示现在的委婉请求（比 can 更客气） 表示可能性（也许） Language points 句型结构： 肯定句：主语 + could + 动词原形 + 其他. e.g. He could make a saw. 否定句：主语 + could not (couldn't) + 动词原形. e.g. She couldn't carry the heavy board. 一般疑问句：Could + 主语 + 动词原形？ e.g. Could you help me? 回答：Yes, 主语 + could. / No, 主语 + couldn't. Language points 形容词比较级（Comparative Adjectives） Inventions make our lives easier. With a ladder, it is easier and easy to get up? It is easier/faster to ... Language points 当我们比较两件事物时，用形容词的比较级。通常在形容词后加 -er（如 easy→easier, fast→faster, hard→harder），或以辅音+y结尾的变 y 为 i 再加 -er，双写末尾辅音加 -er（如 big→bigger）。比较级常与 than 连用，但在本课中用于“使生活更……”，不一定要有 than。 Language points 句型结构：A + be + 比较级 + than + B（A比B更……） e.g. The cart is easier than carrying by hand. make + 宾语 + 比较级（使……更……） e.g. Inventions make our lives easier. It is + 比较级 + to do sth（做某事更……） e.g. It is faster to travel by plane. Language points 1.Lu Ban __________ the first saw after he __________ a leaf cut his finger. A. make; see B. made; saw C. makes; sees 2.— __________ you carry this heavy board to the tree house? — Yes, I __________. It’s not too heavy now because we have a cart. A. Could; could B. Can; could C. Could; can 3.With a ladder, getting up is much __________ than climbing a tree. A. easy B. easier C. easiest 4.My dad __________ build a tree house when he was young, but now he __________ build one very quickly. A. could; can B. can; could C. could; could 5.Before the saw, cutting wood was very hard. After the saw, it became __________. A. hard B. harder C. easier B Read and choose A B A C 1.They used a ladder to get up to the tree house. （改为否定句） → ________________________________________________. 2.The cart could carry many boards. （改为一般疑问句，并作肯定回答） → ________________________________________________? Yes, __________. 3.People invented paper in ancient China. （就划线部分提问） → ________________________________________________? 4.Traveling by plane is faster than traveling by train. （改为同义句） → Traveling by train is __________ than traveling by plane. 5.Could you help me move this board? （作否定回答） → No, __________. They didn't use a ladder to get up to the tree house Read and write Could the cart carry many boards? it could. What did people invent in ancient China slower I couldn't 04 Summary board, push down ... was a famous inventor. A leaf cut his finger. He saw teeth on the leaf. Lu Ban made a saw. It is easy / hard / fast / slow to ... Before the invention of ..., ... After the invention of ..., .. 05 Homework 跟读“Lu Ban and the saw”故事录音3遍，模仿语音语调； 用核心句型“It was hard/slow to... Now it is easier/faster to...”写2句话，对比发明前后的变化。 制作一张“中国古代发明”小卡片，写出1项发明的名称、发明者及其作用，例如：Paper — invented by Cai Lun — used for writing and drawing. 和同学玩“猜猜我最喜欢的发明”游戏。用英文询问对方最喜欢的发明及原因，记录下对方的回答，并写出自己的看法。 Bye-bye! 沪教版六上·新教材 Audio generated by ttsmaker.cn Blues 672.0 Audio generated by ttsmaker.cn Blues 1056.0 Blues 49579.816 Blues 12747.714 Blues 13322.399 Blues 16195.827 Blues 12146.906 Blues 18494.648 $board. Push down.