Unit7Section A-1a-2d课件 2022-2023学年人教版英语八年级下册

Unit 7 Section A Period 1 (1a-2d) Words and expressions square n. 平方；正方形 meter n. 米；公尺 deep adj. 深的；纵深的 desert n. 沙漠 population n.人口；人口数量 Asia n. 亚洲 feel free (可以)随便（做某事） tour n. 旅行；旅游 tourist n. 旅行者；观光者 wall n. 墙 amazing adj. 令人大为惊奇的；令人 惊喜（或惊叹）的 ancient ud明， 古代的；古老的 protect v. 保护；防护 wide adj. 宽的；宽阔的 as far as I know 就我所知 man-made adj. 人造的 LOGC Lead In Enjoy a short video. CHASING LIGHTS IN THE HIMALAYAS Do you know these numbers? How to read them? 8848 meters 1,025 meters deep 6,600 kilometers long 6,211.31 kilometers long 3,219 kilometers wide Do you know this? Which is the highest mountain in the world? Which is the longest river in the world? Qomolangma runs along the border between China and Nepal.It is covered with snow all the year round.It's 8844.43 meters high,the highest in the world.It's 26 kilometers long. Qom0☑aIg2 The Sahara is the biggest desert in the world.It is located in the northern Africa.Its climate conditions are very bad and is one of the earth's most unsuitable for biological survival. the Sahara The Caspian Sea(里海)is the biggest inland lake in the world.The max depth is 1,025m (in the southern part).It lies in the border between Asia and Europe. the Caspran St