人教版新目标英语八年级组上unit 2 教学课件section a 1a-2c精品.ppt

2) 这些表次数的词后与一段时间连用， 表示动作多长时间发生几次，即动作 的________. 3) 翻译： 两周一次 ________________ 一年两次 ________________ 一个月两次 ________________ once two weeks 频率 once a year twice a month * sometimes与几个形似的词的区别 a. sometime是副词, “在某个时候”, “某时” Will you come again sometime next week? She was there sometime last year. b. 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. He worked on the trouble for some time. * c. some times是名词词组, 意为“几次, 几倍”。 I met him some times in the street last month. The factory is some times larger than that one. * How often do you do these activities? Fill in the chart and then make conversations. 2c Activities How often watch TV use the Internet read English books go to the movies exercise every day four times a week twice a week every day once a month * How often do you watch TV? I watch TV every day. What’s your favorite program? Animal world. How often do you watch it? Twice a week. * How often do you use the Internet? I use the Internet … What’s your favorite website? … * How often do you read English books? I read English books… What’s your favorite book? ... How often do you read it? … * How often do you…? I ... What’s your…? ... * twice a day 一天两次 How often? * 对频率提问 How often …? 回答 次数+范围 once/ twice/ three times a week * a week Mon. Tues. Wed. Thur. Fri. Sat. Sun. How often ____________do you do your homework? I do my homework … every day. how often: 多久一次 对频率提问 * a week Mon. Tues. Wed. Thur. Fri. Sat. Sun. How often _____________do you go to the movies? I go to the movies … once a week. once: adv. 一次 once a week: 一周一次 * a week Mon. Tues. Wed. Thur. Fri. Sat. Sun. How often do you go skateboarding? I go skateboarding … twice a week. twice: adv. 两次 twice a week: 一周两次 * A week Mon. Tues. Wed. Thur. Fri. Sat. Sun. How often do you exercise? I exercise… three times a week. time: n. 次数（可数） three times a week: 一周三次 * a month September How often _____________ do you