Module3 Journey to Mars Unit 2 We haven’t found life on other planet

NEW WORDS: 行星 太阳系 也, 同样 没有一个 环境 空气 生长, 种植 部分 星系 十亿 宇宙 光线, 电灯 在 … 之外 孤单的, 孤独的 入口 花费 更喜爱 日记 甚至 木星 planet Solar system also none envionment air grow part galaxy billion universe light beyond alone entrance cost prefer diary even Jupiter

秘密，秘密的 真实的，真正的 两次 勘探，探测 任务 不载人 secret real twice explore mission unmanned

Solar system galaxy entrance diary

1.Check the homework( activity8 in unit1) Ask some students to say their sentences The answers: We have done: We have … Sent an unmanned spacecraft to Mars. Sent astronauts to the noon. Sent astronauts to the space station. … We haven’t done: We haven’t … Sent a spacecraft to Mars. Discovered life on Mars. Been to the moon recently. …

Free talk: 1.Do you believe there are other lives in other planet? 2.Have ever seen any films about saucerman( 外星人 ).

Activity 2,3,4. Read the text and finish activity3,4. The answers: Activity3. Planet---star---solar system---galaxy---universe. Activity 4 1.The earth is a star. 2.The sun is a star. 3.There is more than one galaxy. 4.Our galaxy is part of the milky way. 5.The light from stars has taken a long time to reach us. 6.Scientists have found life on other planets. 7.They have received many message from space. 8.They have visited most of the universe F T T F T F F F

Language points: 1 。 Scientists think that there has been life on Earth for millions of years. 科学家们认为数百万年以前已经有生命存在了。 Millions of … 数百万的. Hundred of … 上百的 后面跟可数名词复数 Thousands of… 上千的 2 。 None of them has an environment with air. 他们中没有一个有空气的环境。 None 用于表示对三者或三者以上全部否定的不定代词， 意思是没有什么人或没有什么东西，做主语时谓语动词可用单数 也可用复数。 None 可以与 of 连用，回答 how many/much 的问题。 No one 只表示没有人，，只回答用 who 提问的句子。 None of us is / are interested in the story. ---who are you speaking to ? --- No one. ---How mant students are there in the classroom? --- None.

3. Their light has travelled for many years to reach us. 他们的光线需要好几年才能到地球。 4. It is hard to understand how large the universe is. 理解宇宙到底有多大是很困难的 It is + 形容词 + to do sth. 做。。。是怎么样的。 It is important to finish homework on time. 5. Alone 可做形容词也可做副词 If you don’t want to go alone, I will go with you. 与 lonely 区别： Alone 没有感情色彩， lonely 只做形容词，意思是 孤独的，寂寞的 有感情色彩。 He was very lonely after his wife left. There is a lonely house in the country. He lives alone,but he isn’t lonely. Listen to the tape and read

Try to retell: Scientists think that there ….on earth for …….However,we….on other planets ….. The Earth is ….and ….the sun. Eight other planet also ……None…. with air, so……. The solar system is ………. The starts we see at night ….in other….. There are …..in our galaxy, …….., and our Sun is only …. But scientists ……in the universe. They are ……and their light has …….to reach us. It is …….. how large…… Scientists ……spacecraft to look at ……, and some spacecraft ……. However, …………… But …..sent us a message? …….. With so many …….., are we…,or …….? We don’t know…yet.

Activity 5 Explain the questions and ask and answer in pairs. Ask some pairs to show their answers.

Homework: 1.Try to retell the passage. 2.Finish activity 6