5 Unit 2 How often do you exercise Section B (2a-2e)（课件PPT）-【学海风暴】2023-2024学年八年级上册初二英语(人教版)

Unit 2 How often do you exercise? 第四课时 Section B(2a-2e) 《学海风暴》八年级英语（上）·R版 UHENG 知识要点扫描 1...but we were surprised that ninety percent of them use the Internet every day. …但是我们对他们中百分之九十的人每天 上网感到吃惊。 percent作名词，意为“百分之…”。其用 法如下： YUHENG CULTURE 知识要点扫描 (I)percent是可数名词，但单复数形式相 同。与数词连用时，数词应置于percent.之前。 twenty percent百分之二十 YUHENG CULTURE 知识要点扫描 (2)percent of后接名词作主语时，of后的 名词如果为不可数名词或单数可数名词，谓语 动词用单数形式；若为可数名词复数形式，则 谓语动词用复数形式。 65 percent of children play computer games.百分之六十五的孩子玩电脑游戏。 YUHENG CULTURE 知识要点扫描 2...but we think the best way to relax is through exercise.…但我们认为最好的放松 方式是通过锻炼（来放松）。 through表示方式，意为“以；凭借”。 I knew this news through a newspaper. 是从报纸上得知这个消息的。 YUHENG CULTURE 知识要点扫描 拓展延伸 through表示方向，意为“穿过；经过”， 多指穿过门、窗、洞、森林、城市、隧道等。 YUHENG CULTURE 知识要点扫描 易混辨析through,across与over The hunter stalked the bear 从事物内部 through through the woods.那个猎 穿过。 人穿过树林，悄悄接近熊。 从事物表面 I went across the road.我穿 across 横过。 过马路。 从事物上方 She climbed over the wall. over 越过。 她翻墙过去。 YUHENG CULTURE 知识要点扫描 3.Exercise such as playing sports is fun... 像做运动这样的锻炼是有趣的… such作限定词，意为“这样的；那样的；类 似的”。such as意为“例如”，用来列举同类的 人或事物，其后不用逗号，相当于口语中的 like。 He is such a clever boy.他是一个如此聪 明的男孩。 YUHENG CULTURE 知识要点扫描 4.Old habits die hard.l旧习难改。 die是不及物动词，意为“死亡”，其后不可 直接接宾语，也不能用于被动语态。die为非 延续性动词，不能与表示一段时间的状语连 用；表示死亡的状态，应用be dead。 He died of a heart problem.他死于心脏 病。 YUHENG CULTURE 知识要点扫描 The dog has been dead for three days. 只狗死了三天了。 YUHENG CULTURE八年级英语RJ版·上册 Unit 2 Section B(2a-2e) 授课人：XXXX YUHENG 一、新课引入 Read the phrases in 2a,then talk with your Free talk partner about how often he/she does the activities. I usually watch How often do you TV... watch TV? YUHENG 二、新课讲解 Rank these activities according to how often you think 2a your classmates do them(1=most often,6=least often). watch TV go to the movies play computer games exercise or play sports use the Internet go camping in the country 二、新课讲解 2b Read the article and complete the pie charts on the next page. 15% 10% 13% 2% every day 3-4 times 4-6 times 1-3times a week a week a week