1、本网站免费注册后即可以下载，点击开通VIP会员可无限免费下载！
2、资料一般为word或PPT文档。建议使用IE9以上浏览器或360、谷歌、火狐浏览器浏览本站。
3、有任何下载问题，请联系微信客服。
扫描下方二维码，添加微信客服
What are they?
Think About It
planet n. 行星
billion n. 十亿；千兆
total n. 总计；总数
adj. 总的；总计的
increase v. 增加；增大
Indian adj. 印度的 n. 印度人
Atlantic n.&adj. 大西洋（的）
Arctic adj. 北极的
Learn some new words
planet ['pl?nit]
Arctic ['ɑ:ktik]
Atlantic
[?t'l?ntik]
surface ['s?:fis]
increase [in'kri:s, 'inkri:s]
Listening
Listen to the lesson and read along with the tape.
Read the third,the fourth and the fifth paragraph.
Read the lesson again and answer the questions
1.How many continets are there in the world?What are they?
2.How many oceans does the world have?
Let’s Do It!
Read the lesson and match each paragraph with its main idea.
Paragraph1
a. Six of the seven continents are good for people to
live on.
Paragraph2
b. We should treat the earth well.