Unit2 第2课时 Grammar Focus～3c-2021-2022学年八年级上册英语【拔尖特训】人教版

第2课时　Grammar Focus~3c 语法专题特训 频度副词 频度副词是指表示次数、频率的副词。常用的 频度副词按频率的高低依次为: always>usually> often>sometimes>seldom>hardly ever>never。 另外, every +表示时间的词也表示频率。 1. 频度副词构词:一次: once;两次: twice;三次及 以上用“基数词+ times”表示。如: Sally takes exercise with her brother once a day. Sally和她的弟弟每天锻炼一次。 I like watching basketball games on TV at least three times a week. 我喜欢每周至少三次在电视上看篮球赛。 2. 频度副词的位置:频度副词在句中一般位于be动 词、情态动词、助动词、连系动词之后,行为动词 之前。如: She is sometimes free to climb the mountains. 她有时有空去爬山。 We can􀆳t always help you with your homework, so you need to do it by yourself. 我们不能一直帮助你写作业,所以你需要自己独 立完成。 3. 时态:频度副词通常用在一般现在时态的句子中, 表示一个经常或反复发生的动作。如: John often goes to the countryside on vacation, because he thinks the air there is fresh and clean. John经常在假期去乡村,因为他认为那里的空气 既新鲜又干净。 拓展:如果描述的是过去发生的事情,含有频度副 词的句子也需要用一般过去时态。如: In the past Mr.Lee often rode to work with his wife. 在过去,李先生经常和他的妻子一起骑车 去上班。 4. 特殊疑问句:对频度副词提问时,疑问词用how often。如: — How often does your father take you to swim in the river? 你爸爸多久带你去河里游泳一次? — Less than five times a month. 一个月不到五次。 一、 选词填空。 always often sometimes hardly ever never 1. Linda gets to school late. She was late for school just once last month. 2. Simon plays volleyball with his friends, on Wednesday, Friday and Saturday afternoons. 3. In parents􀆳 eyes, their son and daughter are their children. 4. Jackson dislikes history, so he reads any history books in his free time. 5. Sally usually takes the bus to school, but she rides with her cousin. 二、 单项选择。 1. (2019·东营)— My 80-year-old grandma has learned to chat on WeChat! — Amazing! It􀆳s truly too late to start doing