人教版八年级上册Unit 2 How often do you exercise?语法训练---频率副词（含答案）

Unit 2 How often do you exercise？语法训练 频率副词 一、基本用法 频率副词表示事情发生的频率，通常用于一般现在时。常用的频率副词：always总是，一直，usually通常，often经常，常常，sometimes有时，hardly ever几乎从不，很少，never从不。另外表示频率的还有almost always几乎总是，seldom很少，almost never几乎从不。频率比图示如下：频率副词的比较 频度副词 词义 频度 always 总是；一直 100% almost 几乎；差不多 90% usually 通常 70% often 经常；常常 50% sometimes 有时；不时 20% hardly ever 几乎不 5% never 从来不；不曾 0 二、特殊用法 1.频率副词的位置：句中只有一个行为动词时，频率副词位于动词之前；当有助动词/系动词/情态动词时，位于其后。 2.sometimes=at times可位于句首/句中/句末。 Sometimes I walk to school；sometimes I go to school by bike.我有时步行去上学，有时骑自行车去。 三、难点突破 1.be always doing sth.表示“总是干某事”，表示说话人的“赞叹，不满，厌烦”等情绪。always与not连用，表示部分否定，意思是“不总是”。 She is always asking the same question.她老是问相同的问题。（表示厌烦） The rich are not always happy.有钱人未必总幸福。（部分否定） 2.表示频率的短语还有：every day /week/month/year...每天、周、月、年…，once a week一周一次，twice a day一天两次，four times a year一年四次。 3.对频率词或频率短语提问用how often“多久（一次）”。 - does he go swimming？他多久游一次泳？ -Once a day.一天一次。 - have your parents been abroad？你父母去过国外多少次了？ -Only once.仅仅一次。 若对once，twice，three times表示次数的词（组）提问，要用How many times“多少次”。 4.在反意疑问句中，前半句有never/seldom，疑问部分要用肯定式。 He never goes home on Sundays, ？他周日从不回家，是吗？ 5.never位于句首时，主语和谓语要倒装。 Never have I learnt this word.我从没有学过这个单词。 当堂训练 一、填入适当的词使得意思通顺。 1. _____ students = 0% of the students 2. _____ students = 1%~50% of the students 3. _____ students = 51%~99% of the students 4. _____ students = 100% of the students 二、单项选择。 ( )1.— do you go to the bookstore —Once a month. A. How often B. How many times C. How many D. How long ( )2. “60% of the students like watching TV. ” means “_____ students like watching TV.” A. All B. Most C. Some D. No ( )3. Lucy is very fat because she exercises and eats a lot. A. often B. always C. usually D. never ( )4. Here my favorite books. A. is B. are C. am D. be ( )5. My father watches TV . A. two a week B. twice C. second a week D. twice a week ( )6. My parents usually do the cleaning _____ weekends. A. on B. in C. to D. with 三、用所给词的适当形式填空。 1. The old man _____ (exercise)every morning. 2. I usually go _____ (skateboard) on Sundays. 3. The twins can watch TV three _____ (time) a week. 4. Mr. Green goes to the movies _____ (one) a month. 5. Everyone wants _____ (have) a strong body. 四、句型转换。按要求改写句子，每空一词 1. I often play computer games on Saturdays. (对划线部分提问) _____ _____ you often _____ on Saturdays 2. My father surfs the Internet three times a week. (对划线部分提问) _____ _____ _____ your father surf the Internet 3. What program do you ... ...