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unit4unit4 grammargrammar 一 教学目标一 教学目标 1 正确熟练地运用从句和简单句 2 掌握简单句和复合句之间的转换 二 教学内容二 教学内容 掌握词汇 aware circle agreement distance possibility alien stranger 词组 as tasty as remind of how far be away from two earth years circle around the sun work hard come true be different from try to do be similar to sign of be happy to do indoor playground the football field the same as hear from 句型 1 people might float in space because of the low gravity 2 humans cannot survive without food water or oxygen 3 the smell of the pills reminds them of the tasty food on the earth 4 it takes mars about two earth years to circle around the sun once 5 i wonder how many people would like to move to mars 6 it is difficult to breathe on a planet that has much thinner air than that on the earth 三 重点难点三 重点难点 1 正确熟练地运用从句和简单句 2 掌握简单句和复合句之间的转换 四 教学过程四 教学过程 stepstep 1 1 revisionrevision make sentences with at the age of because of without eg i could ride a bike at the age of five he didn t go to school because of his serious illness fishes can not live without water stepstep 2 2 learninglearning partpart a a 1 tell students that we can rewrite adverbial clauses in simple sentences with preposition phrases beginning with at the age of because of and without i could rick a bike when i was five years old i could ride a bike at the age of five he didn t go to school because he had a badly ill he didn t go to school because of his serious illness fishes can not live if there is no water fishes can not live without water 2 ask students to do the exercise on p56 in pairs or on their own check the answers with the whole class 1 neil armstrong took his first flight at the age of six 2 yuri gagarin became the first man to go into outer space when he was seventeen years old 3 people might move to another planet in the future because of the bad population 4 meals will not be as tasty as they are today without the fresh food 5 it would be funny to play football on mars because there are low gravity 6 if there isn t special boots we cannot walk on mars stepstep 3 3 learninglearning partpart b b tell the students that we can rewrite some object clauses in simple sentences with prepositions like of and about ask students to do the exercise on p57 in pairs or on their own check the answers with the whole class 1 are you aware of the distance from mars to the sun be aware of 2 do scientists agree with the possibility of living on mars 3 do they thought about the low gravity problems on mars 4 are you aware of the transports on mars 5 i wonder about the number of the people who would like to move to mars 6 i think people should know about the differences between mars life and the earth life stepstep 4 4 learninglearning partpart c c remind the students that rewrite some defining relative clauses in simple sentences with prepositions like with and in let the students do the exercise on p58 in pairs and check their answers 1 mars is a planet with an environment similar to the earth 2 astronauts in space suits and helmets might stay on mars for hours 3 it is difficult to breathe on a planet with much thinner air 4 on mars there might be people with air tanks on their backs c2 1 humans are because of the serious pollution on the earth 2 many people do not doubt of the interesting life on mars 3 we could not play football on mars with the low gravity 4 life would be boring for me without football 5 maybe this problem with the same football fields as those on the earth stepstep 5 5 conclusionconclusion the students go through the knowledge according to the big screen stepstep 6 6 homeworkhomework 1 review the grammar 2 preview integrated
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