云南省陇川县第一中学高一英语《Unit4 Astronomy》教学设计（二）.doc

云南省陇川县第一中学高一英语unit4 astronomy教学设计（二）grammar (learning about language and using language)一、teaching content1. practice giving instructions.2. learn to use noun clauses as the subject.二、important words and phrases1. die out 熄灭；灭绝 die away 逐渐消失、平息 die from由于.而死（外因） die of 由于.而死(内因)2. block out 挡住（光线）；） block up 阻塞，堵塞 block off （用障碍物）隔开 block in草拟（计划、大纲等），画出（略图）3. crash (into/onto/through/to) v. 撞击（某物）发出声响；突然倒下eg. the plane crashed into the mountain. 4. cheer up 感到高兴；感到振奋cheer sb. up 使某人高兴；使某人振奋cheer on 为加油cheer sb. 为某人喝彩with good cheer 欣然地cheers! 干杯！祝你健康！(用于祝酒)eg. _ cheer_ _ up_！ the news isnt too bad.振作一点吧！也不是什么太坏的消息。5break out (战争、灾难、瘟疫等)突发；爆发(无被动语态)the second world war broke out in september 1939.“二战”是1939年9月爆发的。a fire broke out in the neighborhood last night.昨晚居民区里发生了火灾。拓展：break away from 脱离(政党等)；打破(陈套等)break down 出故障，抛锚；(计划等)失败；(身体、精神等)垮掉；打倒，砸破；(化合物等)分解break in 破门而入；闯入；打断(话语等)break into 破门而入，突然起来break off 折断；突然中止，断绝，结束break through 突破break up 打碎，拆散；散开，解散；(学校)期末放假，(集会)结束break into pieces 成为碎片eg. 介、副词填空(1)she started to speak, then broke _off_ while a waitress served us with coffee.(2)he lost his job and his marriage broke _up_.(3)her health broke _down_ under the pressure of work.(4)should another world war break _out_， what would become of human beings?6watch out 注意；当心watch out(for) look out (for) 密切注意；留神take care 留神，注意be careful 仔细，留神watch it 当心，小心watch over 照看；看守keep a close watch/eye on 密切注视eg. (1)_ watch _ _ out_！ there is a car coming! 当心！有车来了！三、some useful expressions（finish the sentences）6用心 爱心 专心please look at/ listen to. please check that. you need.please pay attention to. dont forget to. youd better.make sure you. watch out for. you mustnt.practise ( speaking on page 31)what do you need if you travel to the moon?sample: s1: lets think about what we would need to protect our skin if we visited the moon.s2: id take some skin cream. that works very well when we go to the sea.s3: yes, but its going to be much too hot to put cream on your skin on the moon.s4: whats more you get direct heat from the sun. there are no clouds on the moon to protect you.s3: oh dear, and i also have to carry oxygen around with me everywhere because theres no oxygen on the moon.s2: why dont we carry the oxygen on our backs in a tank?s1: good idea, but wont that hurt our skin?s4: i think it will. why dont we wear a spacesuit which has the possibility of protecting your skin and helping you carry the oxygen very easily?s1: a very good idea. we also need some sunglasses as the sun will be as bad for our eyes as for our skin.s3: thats right. the helmet of the suit can have sunglasses you can use.s2: how will the suit protect our skin?s4: its so hot there so i suggest we design suit that can supply cold water so the wearer feels cool and hot water to warm us if we feel cold.s2: great! so i wont need sun cream after all. thats good!四、grammar pointsstep 1 observation请观察下列句子，注意划线部分句子的意义及用法。1. what surprised me most was that the little girl could play the violin so well. 2. who will go to the concert is not known.3. that she was chosen made us very happy.4. whether she will come or not is still a question.5. which book they will choose is still unknown.6. when we shall hold our sports meet is not decided. 7. its strange that he knows nothing about it.8. it is a pity that she has made such a mistake.9. it is said that president jingo will visit our school next week. step2 summarize(一) 引导主语从句的词有连词that, whether；连接代词who, whose, whom, whoever, what, which等；连接副词where, when, whenever, wherever, how, why等。（二）语序 主语从句使用陈述语序，其通常结构为“引导词 + 主语 + 谓语 + 其他成分”；但当连接代词同时充当从句主语时，其结构为“连接代词 + 谓语 + 其他成分”，如句1、2。（三）引导词 that引导主语从句时无词义，也不充当任何成分，但通常不可以省略，如句3； whether引导主语从句时意为“是否”，通常不能用if来代替,如句4； 可以引导主语从句的连接代词主要有：who, whom, whose, what, which, whatever, whoever等，如句5； 可以引导主语从句的连接副词主要有：where, when, how, why等，如句6。（四）常见句型 有时为避免句子头重脚轻，常用it作形式主语，代替主语从句放在句首，而把主语从句置于句末。常用句型如下： it + be + 形容词 + that 从句， 如句7; it + be + 名词 + that 从句， 如句8; it + be + 动词的过去分词 + that 从句， 如句9。step 3 practicei. 用适当的词填空，使句子意思完整。1. _ he didnt attend the meeting yesterday wasnt quite clear.2. the foreign minister said, “it is our hope _ the two sides will work towards peace.” 3. _ team will win the match is still unknown.4. _ comes to the party will receive a present.5. _ mary has left is still a question. 6. its reported _ three people were killed in the accident and five were hurt badly.7. _ he solved the problem successfully interested all of us.8. we usually think _ we cant get seems better than what we have. 9. it is a fact _ english is being accepted as an international language.10. _ is to be sent there to solve the problem hasnt been decided.ii. 下列各句中均有一处错误，请改正。1. that the old mans son wanted to know was where the gold had been hidden. 2. it is reported when china has successfully sent shenzhou vi spaceship into space.3. if he can finish his task on time is of great importance. 4. whether the 2008 olympic games will be held in beijing excited the whole nation.5. after yang liwei succeeded in circling the earth, which our astronauts desire to do is walk in space.6. whatever leaves the room last ought to turn off the lights.7. why they will solve the serious problem today has not been decided.8. when will win the english competition is still a problem.9. how our spring sports meet will be held or not this week is not known yet.10. its strange when he should have gone away without telling us.key:i 1. why 2. that 3. which 4. whoever5. whether 6. that 7. how 8. what 9. that 10. whoii 1. that what2. when that 3. if whether 4. whether that 5. which what 6. whatever whoever7. why how 8. when who 9. how whether 10. when that五、dictationpull spaceship puzzle in ones turn gravity gentle block out climate crash cheer up float cabin now that break out watch out existthus lay eggs give birth to prevent.from六、listening practice （40 minutes for each week）七、writing请根据下列提示，以“how i overcome difficu