新概念英语第二册第20课_新概念英语第二册20课
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新概念英语第二册第20课教案
一、教学内容：
1.复习上节课所学内容并听写
2.讲解第20课单词及课文知识点
3.完成课堂练习并讲解
二、教学目标：
1.掌握所讲单词、短语及句型的用法
2.掌握关键语言知识点和难点
三、授课过程： 1.生词和短语
① catch(caught, caught)vt.抓到
catch fish 钓鱼，捕鱼
catch a thief 抓住小偷
catch the bus 赶公交车 ←→ mi the bus 错过公交车
② fisherman n.钓鱼人，渔民
fish → fisherman(pl.fishermen)
fish n.鱼 [C]
1)fish 鱼 [pl.] 单复数同形
2)fishes 不同种类的鱼 ③ boot
n.靴子
a pair of boots 一双靴子 ④ waste vt./n.浪费
1)waste vt.浪费
eg.Don’t waste your time, money and energy.不要浪费你的时间，金钱和精力。2)waste n.浪费 a waste of 对…的浪费
eg.It’s a waste of time.这简直是浪费时间。⑤ realize v.意识到
real adj.真的 reality n.现实
1)认识到，意识到（不用于被动语态，不用于进行时态，人做主语）eg.She realized that he was lying.她意识到他正在说谎。2)vt.实现（计划等）（可用于主动，也可用于被动语态）realize one’s hope 实现某人的希望 realize one’s dream 实现某人的梦想 realize one’s plan 实现某人的计划
eg.He realiaed his dream at last.他终于实现了自己的梦想。→ His dream was realized at last.2.课文讲解
I often fish for hours without catching anything.without prep.没有
prep.+ n./v.—ing / pron.eg.He went out without saying anything.他一言不发就走了。用法：without前后必须保持一致。上句相当于：
He went out and he didn’t say anything./ He went out without saying any words.eg.I can not live without you.eg.Fish can not live without water.
But this does not worry me.worry v.使…担心
worry sb 使…担心，困扰某人
eg.My little daughter worried me a lot.我的小女儿令我担心。
be worried about 对…表示担心
eg.I was worried about my little daughter.我对小女儿感到担心。 Instead of catching fish, they catch old boots and rubbish.instead of 不做…而做…（可置于句首或句尾）
eg.The unlucky fishermen catch old boots and rubbish intead of catching fish.eg.Men wear socks intead of stockings.男士们穿的是短袜而不是长袜。eg.I went shopping intead of doing my homework.我去购物而没有做作业。instead of 后面加名词，代词或动名词作介词宾语。
I am even le lucky.even 甚至
more lucky 更加幸运 le lucky 更加不幸运
le 更不…（消极比较级）
A is le + 原级 than B
A比B更不…
eg.I am le happy than before.我比以前更加不愉快/ 更痛苦。
eg.This story is le interesting than that one.这个故事比那个更无聊。
After having spent whole mornings on the river, I always go home with an empty bag.after prep./conj.仅当从句主语与主句主语一致时，才可以省略作after doing eg.After saying Goodnight, the boy went to bed.eg.After the students handed in their papers, the teacher left.（本句主从句主语不一致，不可省略成 after doing 形式）spend time/money/ energy(in)doing sth 'You must give up fishing!' my friends say.'It's a waste of time.'
give up give up fishing 放弃钓鱼 give up smoking 戒烟
But they don't realize one important thing.understand 理解，懂得，明白
eg.I realized that he was mad.我意识他疯了。eg.I don’t understand English.我不懂英语。
eg.I realized that I had been wrong.我意识到我错了。
I'm not really interested in fishing.I am only interested in sitting in a boat and doing nothing at all!be interested in sth/doing sth 对某事/做某事感兴趣
eg.Everyone is interested in beauties.每个人都对美女感兴趣。
eg.The playboy is interested in running after beauties.花花公子对追逐美女感兴趣。at all 根本，丝毫 not at all 根本不
eg.There is nothing to eat at all.根本就没有吃的。
eg.I don’t like that bear at all.我根本就不喜欢那个粗鲁的家伙。
3.课本练习答案
b c b b c / b c a c c/ d a
