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　　teaching aims:1.         enlarge the students’ vocabulary 2.         get the students to know about space explorationteaching important points:learn the words by heart and try to use themteaching different points:1.           how to develop the students’ imagination2.           how to use the new words to solve problemsteaching methods: 1.             practice to get the students to master what they’ve learnt2.             discussion to make every student work in classteaching procedures and ways:step 1. greetingsstep 2. brainstormingask students to think about the questions.questions:1. do you know him?2. when did space exploration begin in the world?3. when did the first man land on the moon? and how?4. when was the first manned spaceship launched in china?5. are you interested in making discoveries in space?  a scientist is making a speech to a group of students of high school students.ask students to read the speech. tell them to try to guess the meanings of some new words.step 3. vocabulary learning ask students to guess the meanings of the unknown words from the context.space exploration began with the launch of the first artificial satellite. what does “launch” mean? what word can be used to replace “artificial”? what about the word “man-made”?step 4. present some pictures and explain them to students.step 5. practice. ask students to fill in the blanks of part c on page 7.suggested answers:1. astronaut   2. space  3. space exploration  4. space shuttle  5. rockets 6. launched   7. space station  8. space walk  9. spacesuitstep 6. ask students to go over “the sun’s family” they learned in junior middle schools.the scientist is showing the students a picture of solar system.ask students to write the number of each planet in the correct box.suggested answers:5. jupiter  1. mercury  4. mars  8. neptune  9. pluto  2. venus  6. saturn 7. uranusstep 7. pair work.ask students to make up a new dialogue about the space exploration in china.and then act it out in pairs.step 8.language points.1. launch  vt.“发射”, “下水”another man-made satellite was launched last week.the ship called “titanic” was launched in 1912.2. unmanned“无人的”, “无人操纵的”, “自动的”。反义词为manned3. so far“到目前为止”, 作状语, 常用于现在完成时。this is the best film i have so far seen.so far(till now)i have learned 2ooo words.4. dream  名词或动词he dreamed a sweet dream.i dream of becoming a scientist in the future.5.carry out “实施”, “执行”, “进行”it is impossible for the plan to be carried out.they are carrying out an experiment now.the police are carrying out an investigation.6. come true /realize “ 实现” 前者为不及物动词短语，后者为及物动词。my dream came true at last.the country is trying their best to realize the four modernizations.7. sometime（过去或将来的）“某时”sometimes “有时”some time “一段时间”—when did your father come back?    —sometime last week.i stayed in beijing for some time, then i left.sometimes they play football.8.take off “脱下”, “起飞”9.pick up“接受”, “捡起”, “买”, “（顺便用车）来接”, “（无师自通地）学会”he picked up an old car in the market yesterday.the children can pick up the programs at home with a two-way radio.when he was in the united states, he picked up english.homework:1. unit revision: p63: period 4.2. preview “grammar and usage”.