内容正文:
Unit 5 Can you come to my birthday party?
课文精讲
1.Can you come to my party on Saturday afternoon?星期六下午你(们)能来参加我的聚会吗?在本句中,can是情态动词。“Can you...?”句型结构可用于向他人发出邀请或请求某人做某事,也可用“Could you...?”表示请求,could表达的语气要比can委婉。
Can you go to the movies with me tonight?今晚你能与我一起去看电影吗?
归纳 :关于“Can you...?”邀请句型的答语:
(1)当接受邀请时,可以用“Sure,I'd love to”应答。除了可以使用“Sure”之外,还可以用“Certainly”。
—Can you come to my birthday party tonight?你今天晚上能来参加我的生日聚会吗?
—Sure,I'd love to.当然,我很乐意去。
(2)当拒绝邀请时,要先以“Sorry,I can't”致歉,再以“I have to...”解释无法接受邀请的原因。
—Can you play basketball with us?你能和我们一起去打篮球吗?
—Sorry,I can't.I have to stay at home and look after my sister.对不起,我不能去。我得在家照顾我妹妹。
2. I have to prepare for an exam.我得准备考试。
(1)本句中的 have to意为“必须;不得不”,是情态动词,其后接动词原形。have to强调由于客观需要而“不得不”做某事。
She has to stay at home to finish her homework.她不得不留在家里完成作业。
•辨析 must和 have to都表示“必须”,但用法有所区别:
①强调的侧重点不同。must侧重于说话人的主观态度,表示说话人主观上认为有必要或有义务做某事;have to侧重于受客观条件限制而“不得不”或“被迫”做某事。
We must go at once.我们必须马上就走。
I really want to buy that car,so I have to borrow some money.我真的很想买那辆汽车,因此我不得不借些钱。
②适用的时态不同。must只有现在时一种形式,而have to则有多种时态形式。
She had to say goodbye to us.她不得不向我们告别。
③否定式的意义不同。mustn't意为“一定不要;不允许”,表示语气较为强烈的禁止;而have to的否定式don't have to意为“不必要;没必要”。
You mustn't tell him about it.你一定不要告诉他这件事。
You don't have to wear the school uniform.你不必穿校服。
(2) prepare for意为“为……做准备”,相当于get ready for。 She is preparing for her birthday party.她在为她的生日聚会做准备。
3.I have too much homework this weekend.这个周末我有太多的家庭作业。
too much意为“太多”,是形容词词组,其后接不可数名词。
There is too much water in the rice.米饭里的水太多了。
辨析: too much 中心词是much,后面跟不可数名词,意为“太多”。too用来加强much的语气。 too many 中心词是many,后面跟可数名词复数,意为“太多”。I have too many books.
much too 中心词是too,后面跟形容词或副词,意为“非常;太”。much用来加强too的语气。
It's much too cold.天太冷。
4.Thanks for asking.谢谢你的邀请。
thanks for sth./doing sth.意为“因某事或某人做了某事而感谢”,是一个客套用语。thanks也可以用thank you替换。
Thanks for looking after my baby.=Thank you for looking after my baby.谢谢你照顾我的孩子。
5.Oh, but Sam isn't leaving until next Wednesday.哦,但萨姆直到下星期三才会离开。“not..until..”意为“直到······才·····”,主句谓语动词需用非