仁爱英语七年级下册Unit7Topic2知识点讲解.docx

仁爱英语七年级下册Unit7Topic2知识点讲解Unit 7 Topic 2 情态动词can表实力 情态动词can表实力时意为“能够做某事”；否定形式为cant或cannot，后面跟动词原形。I can climb the tree. 我能爬树。He is only four, but he can read. 他只有4岁，但已认得字了。I cannot read these words. 我不会读这些单词。 情态动词could表实力时，could为can的过去式，为过去的实力。 如：She could swim at the age of seven. 她七岁时就会游泳了。 Can Could 表示实力的辨析 我们可以用情态动词表示实力。 情态动词can表示现在的实力，could表示过去的某种实力。例： He can speak good English. Sandy cannot dance. The old man could swim across the river when he was young. 留意：我们也可以用be able to来表示实力，be动词的形式依据句子所用时态改变。例： My little sister is able to look after herself now. My little sister wasnt able to look after herself when she was 5 years old. 一般选择疑问句 例句：Would you like some coffee or tea? 英语中的一般选择疑问句结构很简洁，就是先把一般疑问句结构写出，然后在其后加上“or+选择部分”即可，标点也是问号。选择疑问句的回答不同于一般疑问句，不能用yes或no来回答，而是选择其中一种选项回答。例如：1) -Are you a student or a teacher?  你是学生还是老师？ -I am a teacher.  我是一名老师。   2) -Do you go to school by bus or bike? 你是乘公共汽车还是骑自行车上学？ -I go to school by bike.  我骑自行车上学。3) -Is she eleven or twelve?  她11岁还是12岁？ -She is twelve. 12岁。 乐器前的冠词的常考点 西方乐器名称的前面需加定冠词the，如： play the guitar 弹吉他 play the piano 弹钢琴 play the violin 拉小提琴 play the drums 打鼓 They can play the piano. 他们会弹钢琴。 Were learning to play the guitar by ourselves. 我们在自学吉他。 棋类球类乐器的冠词的常考点 表示球类、棋类的运动项目前不加冠词。 如：play football 踢足球   play chess下象棋 定冠词在play后和西方乐器连用。如：play the piano弹钢琴       play the flute吹长笛 Not any more /no more /not any longer /no longer 原文例句：Now I am not afraid of animals any more. 讲解：not any more = no more 意为“不再”；主要指做某事的次数不再增加，多与瞬间动词连用。no longer = not any longer“不再”主要表示时间上不再延长，多与持续性动词连用。例：I will go there no more. = I wont go there any more.They no longer live here. = They dont live there any longer. age的用法 age名词，意为“年龄”。其用法如下： Not at all not at all意为“一点儿也不”，可以单独运用，也可以用作notat all。例：I dont want to go hiking at all. 我一点儿也不想去徒步旅行。He doesnt like noodles at all. 他一点儿也不喜爱面条。-Do you like eating hamburgers? -No, not at all. 你喜爱吃汉堡包吗？ 不，一点也不喜爱。-Thanks a lot for lending me your book. 多谢你能把你的书借给我。-Not at all. 不客气。 Have a good time /fun doing 课文原句：Sounds like youre having a good time. 听起来似乎你玩得正快乐。 Im having a great time visiting my aunt in Canada. 我正在加拿大探望我的姑妈，玩得很快乐。 have a good time意为“玩得兴奋，过得开心”，同义表达有：have fun, enjoy oneself等。 They are having a good time. = They are having fun. = They are enjoying themselves. 他们正玩得兴奋。Tom has a good time every day.   Tom每天都过得很开心。have a good/great time doing sth.意为“做某事很快乐、开心”，相当于have fun doing sth. Ago/before /past 1. ago  adv. 以前 (和一般过去时的句子连用) 如：There was a pond here three years ago. 三年前这有个池子。常用搭配： a long time ago 很久以前     a moment/minute ago刚才   2. before    prep. 在以前；在之前 如：Larry arrived home before me. 拉里在我之前到家。I usually take a shower before having my breakfast. 我通常在吃早餐前洗个澡。 conj. 在以前 如：Say goodbye before you go. 你走之前要告辞。       Did she leave a message before she left? 她走之前留言了吗？   拓展：before  adv. 从前，以前 (常和完成时连用) 如：I think I have met you before. 我觉得我以前见过你。  3. past  prep. 在之后，晚于 如：Its ten past nine. 现在是九点非常。  拓展：past还可以作形容词，表示“过去的”，修饰名词作定语；作名词表示“过去”，常用于in the past等短语中。如： I spoke with him this past weekend. 在过去的这周末，我跟他谈了话。You should stop living in the past. 你应当停止沉溺于过去。