人教版九年级英语课件Uint13SectionB1a1e共16张

1、 Section B:1a1e Unit 13 Were trying to save the earth! 【课前预习】【课前预习】 Look ,the paper napkins are used here and there. We should stop using the paper napkins ! Turn on the shower while you are washing your hands. We should turn off the shower . We should save water. Today, we should stop 1.1.知识目标知识目标:

2、 : 1）重点词汇 recycle (v.) 回收利用；再利用 napkin 2）重点句子： ?A: We really shouldnt use paper napkins ,you know. B: I know. I stopped using them last year. ?A: Recycling paper is really easy. B: I agree. But its hard to stop riding in cars. ?Turn off the shower while you are washing your hair. ?We have seen many

3、changes in the environment. ?The air pollution is getting worse and worse. 2.2.技能目标：技能目标： 能够运用目标语言表达自己的观点，并有充足的理由。 3.3.情感目标情感目标：进一步了解污染的生成问题，增强爱护地球意识。 ?While listening 1.Listen to the conversation and complete the sentences. Things Julia and Jack Things Julia is talk about doing now Things Julia wil

4、l do in the future Things Julia would Never do Turning off the lights Turning off the shower Not using paper napkins Taking your own bags when shopping Not riding in cars Riding a bike Recycling paper 1. A: Recycling paper is really easy.循环利用纸张真是容易。 B: I agree. But its hard to stop riding in cars.我同

5、意。但是 停止驾车是很难的。 recycling paper在句中作主语，意为“循环利用纸张”。动词作 主语应该用动名词形式，这类句式可以转换为its+形容词+不 定式形式。如： Pouring the dirty water into the river is bad for us.向河里倒脏 水对我们不好。（可转换为Its bad for us to pour the dirty water into the river .) Its+形容词+不定式，表示“做什么是怎样的”。如： Its good for us to ride a bike.骑自行车对我们（的身体）有益。 2.A: We

6、really shouldnt use paper napkins，you know. 你知道，我们真不应该使用餐巾纸。 B: I know. I stopped using them last year. 我知道，我去年就停止使用它们了。 shouldnt是should的否定形式，意为“不应该”，后面跟动词原形 。如：You shouldnt watch TV too late.你不应该看电视太晚。 3. Turn off the shower while you are washing your hair.当你 洗头发时，关掉洗浴器。 turn off 动词短语，意为“关掉（关闭电器或水龙

7、头）”。 turn into (使)成为 ，将翻译成。 如： Can you turn the letter into French? 你能将此信译成法语吗? turn on 意为“打开(电器、煤气、水龙头等) ；(突然)攻击”。如： Could you turn on the bath for me while youre upstairs? 4.We have seen many changes in the environment. 我们在环境中已经看见许多变化。 seen是see 的过去分词，see的过去式是saw。如： She _ (see) the boy last year.(

8、由last year可以 推测用过去式saw）。 5.The air pollution is getting worse and worse. 空气污染正变得越来越恶劣。 pollution是不可数名词。 worse and worse 是“形容 词或副词的比较级+and+形容词或副词的比较级”结 构，表示“越来越” ，是比较级的一种表示方式。 注意当形容词（副词）多音节时，用“ more and more + 形容词或副词的原级” 。如：Our country is becoming more and more beautiful. 我们的国家正变 得越来越美丽。 选择题 ( ) 1. I

9、ts good _use paper napkins. A. to stop use B. to stop using C. stop to use D. stop using ( ) 2. When you go to bed, please_ the lights. A. turn of B. turn on C. turns off D. turn off ( ) 3. _ the bike is good for our body . A. Ride B. Riding C. To riding D. Rode 解析： 1.B 本题考查“its+形容词 +不定式”结构，stop后面跟动

10、名词表示停止做某 事。故选B。 2.D turn off 动词短语，意为“关闭电器或水龙头”。3.B 动词作主语时，应该用其动名词形式。 根据汉语意思完成英语句子： 1. We should not _ _ _ . 我们不应该用餐巾纸。 2. We _ _ _ when we are _ . 当我们去购物时带上自己的（购物)袋。 答案： 1. use paper napkins 2. take our bags ; shopping 1. turn away 走开；把脸转过去 2. turn ones back on 不理睬 3. turn on 开/旋开(电灯等), 打开（煤气、水龙头等） turn off 关掉(电灯、煤气、水龙头等) 4. turn into （使）变成，（使）成为 5. turn in 转身进入；拐入；交出；上床睡觉 6. turn down 关小，调低；拒绝 7. turn against 对采取敌对态度 8. by turns 轮流，交替 take turns 依次，轮流 on the turn 正在转变中 9. turn back (使)折回，(使)往回走 10. turn around/round （使）转变，(使)好转 11. in turn 依次，轮流；转而，反过来 12