Unit 3 Keep Fit 单元语法：频率副词 & 物主代词（精讲）-2024-2025学年七年级英语下册单元语法精讲精练（人教版2024）

人教版初中英语 语法专项 七年级下册 Unit3 Keep Fit 1 人教版7下 （单元） 语法点 Unit 1 Animal Friends *特殊疑问词 why, what 和 where *可数名词单复数 Unit 2 No Rules, No Order! *情态动词 can *祈使句 Unit 3 Keep Fit *频率副词 *物主代词 Unit 4 Eat Well *选择疑问句 *名词的单复数 Unit 5 Here and now *现在进行时1 Unit 6 Rain or Shine *现在进行时2 *现在进行时VS 一般现在时 Unit 7 A day to remember *一般过去时 Unit8 Once upon a time *一般现在时VS一般过去时 2 CONTENTS 01 02 物主代词 频率副词 频率副词 4 频度副词的定义 频度副词表示动作发生或状态存在的频率。 常用的频度副词及频度副词短语有：always, usually, often, sometimes, never, once a week, every day等。对频度副词或频度副词短语提问时，用how often，表示“多久一次”。 5 频率副词用来表示动作频率的，一般说来可按频率大小排列： 6 频率副词的位置 频度副词通常放在动词前面，若句子里有情态动词、助动词或系动词 be，则放在这类动词（第一个）的后面。 频度副词放在实义动词前 I usually get up at 6 o'clock in the morning. 我通常早上 6 点起床。 She often reads books in the library. 她经常在图书馆看书。 They sometimes go to the park on weekends. 他们有时在周末去公园。 7 频率副词的位置 频度副词通常放在动词前面，若句子里有情态动词、助动词或系动词 be，则放在这类动词（第一个）的后面。 频度副词放在情态动词后 You should always follow the traffic rules. 你应该总是遵守交通规则。 He can often finish his work ahead of time. 他经常能提前完成工作。 They might sometimes forget to turn off the lights. 他们有时可能会忘记关灯。 8 频率副词的位置 频度副词通常放在动词前面，若句子里有情态动词、助动词或系动词 be，则放在这类动词（第一个）的后面。 频度副词放在助动词后 She has always been interested in music. 她一直对音乐感兴趣。 I have never seen such a beautiful sunset. 我从未见过如此美丽的日落。 They will usually go on a trip during holidays. 他们通常会在假期去旅行。 9 频率副词的位置 频度副词通常放在动词前面，若句子里有情态动词、助动词或系动词 be，则放在这类动词（第一个）的后面。 频度副词放在系动词 be 后 He is always late for class. 他总是上课迟到。 The weather here is often changeable. 这里的天气经常多变。 They are sometimes busy with their work. 他们有时忙于工作。 10 常见频率副词的用法 always表示的频率为100%，意思是"总是、 一直、始终"。 My father always reads newspapers after dinner. 我爸爸总是在晚饭后看报纸。 The sun always rises in the east. 太阳总是从东方升起。 usually与always相比，表示的频率要低些，约为70%-80%。意思是"通常"。 We usually watch TV in the evening. 我们通常在晚上看电视。 He usually plays football with his friends on Sundays. 他通常在星期天和朋友们踢足球。 11 常见频率副词的用法 often的频率比usually又略低些，约为60%-70%，意思是"经常"、"常常"。 I often see him walking his dog in the park. 我经常看见他在公园里遛狗。 They often have parties at their house. 他们经常在他们家里举办派对。 sometimes的频率比often又低些，约为50%＞sometimes＞30%，意思是“有时”。 It is sometimes rainy in spring. 春天有时会下雨。 They sometimes eat out in a restaurant. 他们有时在餐馆吃饭。 12 常见频率副词的用法 never与always完全相反，是100%否定，意思是“从不，决不，绝不，总是不“。 never eat junk food because it's unhealthy. 我从不吃垃圾食品，因为它不健康。 He never tells lies to his parents. 他从不向他的父母说谎。 They never go to school late. 他们上学从不迟到。 My little sister never plays with that broken toy. 我的小妹妹从不玩那个坏了的玩具。 13 对这些频度副词提问时，用 how often，翻译成多久。 She always gets up early to catch the first bus. How often does she get up early to catch the first bus? 她多久一次早早起床去赶第一班公交车？ They usually have lunch at 12 o'clock. How often do they usually have lunch at 12 o'clock? 他们通常多久一次在十二点吃午饭？ It is sometimes rainy in spring. How often is it rainy in spring? 春天多久一次下雨？ I never eat junk food because it's unhealthy.​ How often do you eat junk food? 你多久一次吃垃圾食品？ They never go to school late. How often do they go to school late? 他们多久一次上学迟到？ 对频度副词提问 14 TIPS “次数”的表达方法： 1、一次 once，两次 twice，3次或3次以上用基数词加上 times：three times（3次），five times（5次）， one hundred times（100次） 2、表示 “……几次” 的表达方法是： once a day/a week/a month/ a year（一天/一周/一年一次） twice a day/a week/a month/a year（一天/一周/一月两次） time 表示不可数名词，意为 “时间”；表示可数名词，意为“次数，倍数” 15 物主代词 16 人　称 单　数 复　数 形容词性 物主代词 名词词性 物主代词 形容词性 物主代词 名词词性 物主代词 第一人称 my 我的 mine 我的 our我们的 ours我们的 第二人称 your 你的 yours 你的 your你们的 yours你们的 第三人称 his 他的 his 他的 their他们的 theirs他们的 her 她的 hers 她的 its 它的 its 它的 读一读 物主代词的分类 17 物主代词的用法 物主代词分两种，形物代与名物代。 形物代词功能定，修饰名词其后带。 我的 my 来你的 your，男他 his 女她 her， 它的 its 别写错，我们 our 他们 their。 名物代词可独行，主宾表语皆能行。 相当于 “形物代 + 名”，省略名词更简明。 mine 是我的，yours 是你的， his、hers 也如此，its 单独记仔细， ours 是我们的，theirs 归他们的。 18 物主代词是表示所有关系的代词，分为形容词性物主代词和名词性物主代词两种。 ● 形容词性物主代词相当于形容词，置于名词之前作定语。 my book, your birthday, their parents, her family, their school, our teacher, his bicycle ● 名词性物主代词相当于名词，不能用于名词前。 The blue pen is mine. That big house is hers. The yellow bottle is his. The little cat is yours. 物主代词 形容词性 物主代词 名词性 物主代词 19 物主代词的用法 第一人称 My father is a teacher. 我的爸爸是一名教师。 Our school is very beautiful. 我们的学校非常漂亮。 第二人称 Your bag looks very heavy. 你的包看起来很重。 Do you like your new classmates? 你喜欢你的新同学吗？ 第三人称 His dog runs very fast.他的狗跑得很快。 Her favorite color is pink.她最喜欢的颜色是粉色。 Its tail is short.它的尾巴很短。 形容词性物主代词 只能做定语 20 2. 名词性物主代词具有名词性质相当于“形容词+名词”的形式 =my eggs =your eggs These eggs are mine. yours are in the basket. 这些鸡蛋是我的。你的在篮子里。 物主代词的用法 21 物主代词的用法 第一人称 Ours is a big family.我们的是一个大家庭。 You can use my ruler. I‘ll use yours.你可以用我的尺子。 第二人称 Are these toys yours?这些玩具是你的吗？ I like your story. Yours is more interesting than mine. 我喜欢你的故事。你的故事比我的更有趣。 第三人称 The red dress is hers.这条红色连衣裙是她的。 Look at that cat. Its is very cute. 看那只猫。它的（猫）很可爱。 Theirs are the best seats in the theater. 他们的（座位）是剧院里最好的座位。 22 中文翻译 这只棒球手套是你的吗？ 是的，那是我的，谢谢你。 这是谁的羽毛球拍？ 我认为这是韩林的。他的上面有“HL” 你经常打乒乓球吗？ 是的，我每周玩一次/两次/三次。 你多久踢一次足球？ 我每周玩两次。通常在周末。 我很少/几乎从不玩。我从不这样做。 课本 练一练 KEY：once, twice, three times a week, seldom, hardly ever, never 23 课本 练一练 His yours nine ours theirs 24 课本练一练 seldom always usually never sometimes 25 1．—Why do Chinese people ________ cut up (切碎) noodles on their birthdays? —Because the noodles are a symbol (象征) of long life. A．always B．never C．sometimes D．usually 2．My home isn’t near my school, but I ________ take the bus. My father drives me to school every day. A．never B．sometimes C．seldom 3．—How often do you write to your grandfather?—________. We use the WeChat instead. A．Seldom B．Always C．Usually D．Often 4．—Why is Daniel so healthy?           —Because he does sports very________. A．always B．often C．never D．seldom 5．I live near my school. I________go to school on foot. A．never B．seldom C．usually 拓展练一练 B A A B C 26 6．—Why does Tony _________ talk to others?—Because he is very shy. A．seldom B．always C．often 7．Lucy ________ walks to school. She always goes to school by bike. A．often B．usually C．never 8．If my friends have any problems, my room is ________ open to them. A．always B．sometimes C．often D．never 9．Sam is a nice boy. He ________ helps others in need. A．sometimes B．often C．seldom D．never 10．—Is your brother free at weekends?—Yes. He ________ has much work to do. A．often B．seldom C．usually D．always 11．Sun Yingsha loves ping-pong, and she ________ practices it for over 8 hours every day. A．never B．seldom C．sometimes D．always 拓展 练一练 A C A B B D 27 12．My father ________ watch TV after dinner. A．sometime B．sometimes C．some time D．some times 13．In order to protect his eyes, he ________ uses electronic products. A．always B．usually C．seldom 14．My parents don’t like music and they _________ go to the concert. A．often B．usually C．sometimes D．never 15．—I ________ eat vegetables. —But they are good for your health! We should eat them every day. A．often B．always C．seldom 16．—Do you think your brother has a healthy lifestyle? —No, he _________ eats vegetables. A．always B．usually C．often D．never 拓展练一练 B C D C D 28 THE END 29 $$