初二英语第一单元知识点归纳2.docx

初二英语第一单元知识点归纳2二、句型 1.疑问词how的用法 (1)怎样，用什么手段，方法/交通工具 How are you?/How is she? How did he do it?/I don't know how to swim. How do you come to school? (2)情况如何(指身体健康状况)How are you? (3)how many，how much表示"多少"其中how much还可以表示钱数。 how many后接可数名词复数，how much接不可数名词。 How many times do you go to the park? How many pens do you want? How much water do we drink every day? How much are those pants? (4)how often是对动作发生的“次数”提问，询问的是频率“多久一次” 回答可以是：Every day./Once a week./Three times a week./Often./ How often do you play tennis? How often do you surf the Internet? (5)How old?询问年龄How old are you?I am five. (6)How about?如何?怎么样?How about going to the movies? 2.time表示不可数名词，意为“时间”。 表示可数名词，意为“次数，倍数” What time is it? I go to the movies three times a week. 注意“次数”的表达方法 一次once，两次twice，三次或三次以上用基数词加上times： three times,five times,one hundred times 表示“几次”的表达方法是： once a day/a week/a month/a year twice a day/a week/a month/a year 2.exercise v./n.shop v./n. He often exercises on weekends. We often do/take exercise on weekends. We often shop on weekends. There are many shops in the neighborhood. 4.as for意为“就而论;至于” As for fruit，I eat it sometimes. As for him，I never want to see him here. 至于他，我永远不希望在这里见到。 5.My mother wants me to drink it. 我妈妈想要我喝。 want to do sth.想要做某事 want sb.to do sth.想要某人干某事 Do you want to go to the movies with me? 你想和我一起去看电影吗? I want you to help me with my math. 我想要你帮我学数学。 有很多动词后面用这种结构做动词的复合宾语： ask sb.to do sth.叫某人做某事 tell sb.to do sth.告诉某人去做某事 help sb.(to)do sth.帮助某人做某事 6.She says it's good for my health. 她说它对我的健康有意。 be good for表示“对有益(有好处)” 其反义为：be bad for对有害/无益 It's good for us to do more reading. 多读书对我们有好处。 Drinking milk is good for your health. 喝牛奶对你的健康有益。 Reading English is good for studying English. 对英语对学习英语有益/有帮助。 Reading in bed is bad for your eyes. 在床上读书对你的眼睛有害。 7.usually when I come home from school 通常是在我从学校回家时 When+从句当时候 I often stay at home when it is rainy. 8.I try to eat a lot of vegetables.try to do sth.尽量/尽力做某事 I'll try to learn English well.我会尽量尝试学好英语的。 You must try to take more exercise.你必须尽量多做运动。 9.I look after my health.look after照顾 My brother is ill.I have to look after him today. 我的弟弟病了。我今天不得不照顾他。 All the students must look after the desks and chairs. 有的学生必须照看好课桌椅。 He often helps his mother look after his little sister. 他经常帮助他的妈妈照顾他的小弟弟。 10.My healthy lifestyle helps me get good grades. 我健康的生活方式帮助我取得好的成绩。 help sb.(to)do sth.帮助某人做某事 She often helps me learn math.她经常帮助我学数学。 11.Good food and exercise help me to study better. 好的食物和运动帮助我学习得更好。 help sb.(to)do sth.帮助某人做某事 12.Is her lifestyle the same as yours or different? =Is her lifestyle the same as your lifestyle or is her lifestyle different from your lifestyle? 她的生活方式和你的一样或是不同? be the same as/be different from与一样/与不同 She looks the same as her sister.她看起来跟她的妹妹很像。 This book is different from that one.这本书跟那本书不一样。 13.I think I'm kind of unhealthy.我想我有点不健康。 kind of=a little a kind of一种 14.maybe(adv.)=perhaps也许，可能Maybe he knows the answer. Maybe they'll go skateboarding.He may know the answer. 15.although=though虽然Although he's ill,he goes to school on time. 虽然他生病了，但他还是准时上学。 She eats a lot of chocolate,although she is very fat. 虽然她很胖，但她却吃许多的巧克力。 16.A lot of vegetables help you to keep in good health. A lot of=lots of=many/much许多 keep in good health=keep healthy=stay healthy keep+形容词表保持某种状态 Keep quiet!The baby is sleeping. 那婴儿正在睡觉，保持安静! We must keep our classroom clean. 我们必须保持我们的教室干净。 17.注意sometimes与几个形似的词的区别。 (1)sometime是副词，意为“在某个时候;某时” Will you come again sometime next week? 下周的某个时候你会再来吗? She was there sometime last year. 她去年某时去过那。 (2)some time是名词词组，意为“一段时间”，做时间状语用 I will stay here for some time. 我将在这呆一段时间。 He worked for that company for some time. 他为那家电脑公司工作了一阵子。 (3)some times是名词词组，意为“几次，几倍” I met him some times in the street last month. 上个月我在街上遇到他好几次了。 The factory is some times larger than that one. 这间工厂比那间大好几倍。 (4)sometimes是频度副词，意为“有时” He sometimes goes skateboarding on weekends. 他有时周末去滑滑板。 18.That sounds interesting.那听起来有趣。 look(看起来)，sound(听起来)，smell(闻起来)，taste(尝起来)，feel(觉得)，seem(好象)，grow(变得),get(变得)等词在英语中可用作系动词，后跟形容词作表语。 It tastes good.这味道好。 The music sounds very sweet. 这音乐听起来很入耳。