冀教版enjoy-your-hobby教学课件

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,八年级英语冀教版上,Lesson 53,Teaching aims,1.Vocabulary:,build,wood,glue,field,land,join,club,member,compete,prize,join a club,eitheror,2.Sentence Patterns:,What do I do with my rockets?,Ive been launching rockets for two years.,This year I joined a rocket club in my city.,Then I either lose or break them.,Step1:discuss,Talk about the questions:,Whats this?,Have you ever,seen a rocket,before?,This rocket is about one metre tall.,I also have a rocket thats 1.8metres tall.,Step 2:,Listen and answer.,Listen to the tape with the following questions:,1.,Whats Pauls rocket made of?,2.How many rockets has Paul built?,3.How long has Paul been launching rockets?,Step 2:,Listen and answer.,Listen to the tape with the following questions:,1.,Whats Pauls rocket made of?,Its made of wood and cardboard.,2.How many rockets has Paul built?,Ten rockets.,3.How long has Paul been launching rockets?,For two years.,Step 3:,Read and discuss,Read the text and discuss the words,phrases and sentences in the text.If,you have some problems,please put,up your hands.,This rocket is about one metre tall.,这枚火箭约一米高。,这是一个用来描述人或物之性质的句型。其常见结构是：人,/,物,+be+,数词,+,量词,+,形容词。例如：,The river is 1000 metres long.,这条河长,1000,米。,重点句子解析,What can I do with my rockets?,我可以用我的火箭干什么呢,?,do with,表示“处理、处置、对付”，通常和疑问词,what,连用；而,deal with,含义与之相同，但通常与疑问词,how,连用。例如：,What did you do with the watch you picked up?,你拾到的表怎样处理了？,I dont know how to deal with the bike.,我不知道怎样处理这辆自行车。,Step 4:,Key words,build,动词，建造,eg:,Theyve built a new bridge,across the river.,建立，建设,eg:The government is trying to,build a more modern society.,building,名词,建筑物,eg:There are a lot of very old,buildings in this city.,wood:n.a piece of,wood,The boat is made of,wood,.,wooden:adj.This is a,wooden,bed.,woods:n.It is lovely walking in the,woods,.,glue:v./n.,1.Can you,glue,the broken vase together?,2.His eyes,were glued,to the television.,3.I need a bottle of,glue,.,field:n.,1.They were working in the cotton,fields.,2.He made a lot of money in the gold,fields,of South Africa.,3.He is an excellent scholar,in the field of,language.,land:,1.Most mammals live,on land,.,2.He owns 300 acres of,land,.,join:v.,1.Will you,join us,for dinner?,2.Let,s,join the singing club,.,3.Would you like to,join the Party,?,join,也可用作不及物动词，通常与介词,in,连用表,示,“,加入（某一具体的活动）,”,。,例如：,I hope he can,join in,the dancing.,take part in:,1.Are you going to,take part in the first,experiment,?,2.I want to,take part in running,.,3.let,s,take part in this activity,.,prize:,1.His poem won,the first prize,in the contest.,2.To some men wealth is the greatest,prize,in life.,compete:v.Competition v.,1.We can,compete with,the best teams.,2.My handwriting cannot,compete with,his.,1.Ive been launching rockets for,two years.,have been doing sth.,是现在完成进,行时,表示动作从过去延续至今,一,直在进行中,.,eg:I have been learning English,for 8 years.,4.Then I either lose or break them.,either or,意为“要么,要么,”,表示两者中选择一个,.,在连接并列主语,时,谓语动词依就近原则,.,eg:You can eat either apples or oranges.,Either you or I am right.,Either he or you are right.,She is either drunk or mad.,Step 6:,Read and retell,Read the text carefully and,then retell the text in your,own words.,Step 7:Summary,Key words and sentences:,build,wood,glue,field,land,join,club,member,compete,prize,join a club,eitheror,What do I do with my rockets?,Ive been launching rockets for two years.,This year I joined a rocket club in my city.,Then I either lose or break them.,Hit Straight Tests,()1.The desk is _wood.A.made in,B.made from C.made of D.made for,()2.Pauls rocket landed _some trees.,A.on B.in C.at D.with,()3.Ive been _English for 3 years.,A.learn B.to learn C.learning D.learnt,()4.Rockets are fun _,its very exciting.,A.build B.to build C.built D.building,()5.He is lazy.He _watches TV _ sleeps,every day.,A.either;or B.neither;nor,C.both;or D.either;nor,C,B,C,B,A,桃花,黄瓜,杨花,百合,玉米,油菜花,谜语 不论平地与山尖 无限风光尽被占 采的百花酿成蜜 为谁辛苦为谁甜,一、传粉,植物开花后，成熟的花药会自动裂开，花粉从花药里散发出来，通过一定的方式，落到雌蕊柱头上的过程，叫做,传粉,。,1,、传粉的定义,：,2,、,传粉媒介,风力（风媒花）,昆虫 （虫媒花）,艳丽的花冠，芬芳的花香，甜美的花蜜,没有艳丽的色彩，芳香的气味,鼠尾草,柱头,花粉,花粉粒小而轻,花柱丝状，柱头分叉,甲,乙,概念：,举例：,花粉落到同一朵花的柱头上,小麦、水稻、豌豆,概念：,举例：,一朵花的花粉落到另一朵花的柱头上,鼠尾草，玉米,自花传粉,异花传粉,异花传粉,结论：凡是,单性花,肯定进行,异花传粉,雄花,雌花,想一想,有人说，两性花一定进行自花传粉，单性花一定进行异花传粉，这种说法正确吗？,两性花可能进行自花传粉，也可能进行异花传粉；单性花肯定进行异花传粉。,鼠尾草,柱头,花粉,防止进行自花传粉,防止其他花粉的干扰,保证花的呼吸作用正常进行,人工授粉,1,、定义：,2,、意义,是用人工的方法，从雄蕊上采集花粉，再将花粉传授到雌蕊柱头上的技术。,解决作物传粉不足造成的减产，提高农作物产量。,解决玉米顶端缺粒现象。,珠被,子房壁,卵细胞,极核,胚珠,子房,受精作用,1,个精子卵细胞,受精卵,1,个精子极核,受精极核,双受精,绿色开花植物,经过两性生殖细胞结合的生殖方式叫做,有性生殖,。,花粉粒,花粉管,精子,卵细胞,