山东省泰安市肥城市第三中学高中英语 Unit 4 Astronomy the science of the strars学案 新人教版必修3.doc

山东省泰安市肥城市第三中学高中英语 Unit 4 Astronomy the science of the strars学案 新人教版必修3‎ 教学内容 教学设计 Learning aims: ‎ Let students be familiar with the new words and phrases Learning key points: the usage of key words and phrases Learning difficult points: the usage of key words and phrases ‎【学案使用说明】提前认真预习单词的前提下完成 6‎ ‎【课前预习】‎ 检查学生单词读音，纠错。‎ ‎【自主 合作 探究】‎ ‎1. unlike prep.不同;不像　adj.不同的,相异的 区别unlike/dislike ‎①They are so ______that nobody believes they are sisters.‎ ‎②I am shy and I ______ being talked about ‎③____her younger brother, she studies very hard .‎ ‎④(2013·东营高一检测)The festival has been a great success,______last year when it rained nonstop.‎ A.like　　B.unlike　　C.alike　　D.dislike ‎2 . fundamental adj.基本的；基础的 n.基础,基本规律 be fundamental to ----对---必不可少的 The relationship with the students is fundamental to my work as a teacher .‎ ‎3.harmful adj.有害的 反义词______‎ be harmful to= __________对……有害 ① 阳光会对你的皮肤有害。‎ The sun can ___ ________ __ your skin ‎②Smoking is harmful to your lungs.=Smoking ________________吸烟对你的肺有害 ‎4.exist vi.存在;生存 ‎①exist in　存在于……之中 ‎②exist on靠……为生/生存,与live on意思相近 ‎③There exists...表示“存在,有”,是there be句型的变式。用于该结构的动词还有live/stand/lie等。‎ 练习①他们靠这点收入生存是不可能的。‎ It was impossible for them to ____ ___such a small income.‎ ‎②众所周知,地球存在于宇宙之中。‎ As is well known to us, the earth _____ __ the universe.‎ ‎③世界是什么时候产生的?‎ When did the world _____ ____ ________?‎ ‎④We can’t exist without food or water.‎ 译:___________________________‎ ‎⑤Many experts believe that there may_____life on other planets. A.have　　　B.exist　　　C.are　　　D.is ‎【温馨提示】‎ exist是不及物动词,没有被动语态,也没有进行时 熟读单词和短语，注意发音。‎ ‎33‎ ‎3333‎ 6‎ ‎5.puzzle n.谜;难题 vt. & vi.(使)迷惑/为难 ‎【观察领悟】‎ 阅读下列句子,写出puzzle在句中的含义。‎ ‎①It is still a puzzle to us why he did that. (puzzle n._______)‎ ‎②What puzzled me was why they didn’t take his advice.‎ ‎ (puzzle v. ________________)‎ ‎【拓展延伸】‎ ‎(1)be in a puzzle　　 感到困惑;不知如何是好 puzzle about/over 冥思苦想,苦苦思索 ‎(2)puzzling adj.令人迷惑的,多用来修饰物 puzzled adj.感到迷惑不解的,多用来修饰人 be puzzled about 对……迷惑不解 ‎①这是十分令人困惑的问题之一。‎ This is one of the most ________ _________.‎ ‎②这个学生对于下一步做什么伤透了脑筋。‎ The student ____ _______ __________what to do next.‎ ‎③The little boy didn’t understand the_____　　　question so there was a_______expression on his face.‎ A.puzzling;puzzled B.puzzled;puzzled C.puzzling;puzzling D.puzzled;puzzling ‎6.in time及时;终于;迟早 ‎【观察领悟】‎ 阅读下列句子,写出in time在句中的含义。‎ ‎①In time I think she’ll realize how foolish she’s been.‎ 我想她_____会意识到自己曾是多么的傻。‎ ‎②I should be back in time to watch the football match.‎ 我应该能_____赶回来观看这场足球比赛。‎ ‎③You’ll succeed in time as long as you don’t give up.‎ 只要你不放弃,_____有一天你会成功的。‎ ‎【拓展延伸】‎ in no time________at one time________ at a time________all the time________at any time________at times________ at the same time________on time________ ‎ ‎④(2012·江苏高考)—Thank God,you’re safe!‎ ‎—I stepped back,just_______to avoid the racing car.‎ A.in time　　B.in case C.in need D.in vain ‎7.lay eggs下蛋 一句话巧记三层意义 The boy lying under the tree lied that his cock laid an egg yesterday.‎ My questions in this class:‎ ‎_________‎ ‎__________‎ 6‎ 练习①母鸡下蛋,公鸡则不然。‎ Hens ___ ____ but cocks don’t.‎ ‎②那位老人躺在那里已经好几个小时了。‎ The old man ___ ____ there for several hours.‎ ‎③那个小男孩昨天对他妈妈撒谎了。‎ The little boy ____ his mother yesterday ‎④The white hen___six eggs last week.‎ A.lays　　B.laid C.lied　　D.lain ‎8.give birth to产生;分娩 The woman___birth to twins last year turned out to be a film star.‎ A.to give　B.who gave　C.given　　D.being given ‎9.in one’s turn轮到某人;接着 拓展①in turn依次,轮流;反过来 ‎②by turns轮流 ‎③It’s one’s turn to do sth. 轮到某人做某事 ‎①当轮到我时,我激动得说不出话来。‎ When it is __ ___ ____,I am too excited to speak.‎ ‎②我们轮流读这首诗We read the poem_______‎ ‎③最后轮到她发言了。‎ At last it’s ___ ____ __ make a speech.‎ ‎④Some plants can take in carbon dioxide we breathe out and give off oxygen　　　.‎ A.in case　　B.in turn C.in return D.in addition ‎10.prevent...from 阻止;制止 各种“阻止”的表达_______________________‎ ‎.①谁也不能阻止这个计划的实施。‎ No one can ___________ this plan _____ carried out.‎ ‎②大雨使得战士们无法过河。‎ The heavy rain ________the soldiers _____ _____the river ‎【当堂达标】选词填空 1. 尽管这很困难，我们还是要设法及时完成任务。‎ ‎2. As we all know, smoking is ________ to our health. ‎ 3. At the gate, a guard ________________________(不让他进入学校).‎ ‎2. In the waiting room, ___________________________ (他被阻止吸烟). ‎ ‎【总结提升】）‎ ‎1．It will be my ________ to clean our classroom tomorrow.‎ A．way B．task C．job D．turn ‎2．For some reason，the old lady’s hens stopped _____eggs suddenly.‎ A．lying B．lay C．laying D．lie ‎__________‎ ‎___________‎ ‎___________‎ 1. alike, dislike , Alike , B. 3.harmless , do harm to ; be harmful to ; does harm to 4. exist on ; exist in ;come into existence ;离了水和食物我们无法生存B.5.迷；使---迷惑；puzzling problems ; is puzzled about ; A ‎6.迟早；及时，总有一天。A 6‎ ‎3.What a strange man！He loves his wife，but ________ he often beats her.(宝鸡市模拟)‎ A．at a time B.at one timeC．in time D．at the same time ‎4.People will thank the firefighters for the things they do to prevent fires____the environment safer.‎ A．make B．to make C．from making D．making　‎ ‎5.Fred and Jim did not like each other at first，but________they became friends.‎ A．on time B．at one time C．all the time D．in time ‎6.．The bus driver asked the passengers not to hurry and get on the bus________.‎ A．in turn B．in return C．in time D．in case ‎7．________ dangerous animals such as tigers and lions while travelling in the forest.‎ A．Watch out B．Watch out for C．Looking out for D．Look out ‎【拓展延伸】做《练习册》P65 I , II,III ‎ ‎ 7.lay eggs ;has lian ;lied to ;B ‎8. B 9. in my turn ; by turns ;their turns B ‎10 . Stop /Keep sb. from doing ‎ Prevent from ‎ Prevent from ‎ DC D B D A. B My answes after my researches:‎ ‎__________‎ ‎__________‎ ‎___________‎ ‎___________‎ ‎____________‎ 6‎ The keys after discussions in my co—group:‎ ‎___________‎ 6‎