Unit1 How often do you exercise ?
一、重点短语
as for 至于(＋名词，在句子中作状语) junk food 垃圾食品 eating habits 饮食习惯 of course=certainly=sure当然
look after 照顾look after sb. （well) ＝ take （good） care of sb hardly ever 很少 on weekends 在周末 start with 以……开始 every day 每天 every night 每晚
three times a week 一周三次 once a month一月一次 a lot of 很多
surf the internet 网上冲浪 try to do sth 尽量去做某事 make a difference 使得结果不同 go to the movies 看电影 in good health 身体好
keep in good health ＝keep healthy ＝stay healthy 保持健康 healthy lifestyle 健康的生活方式 go skateboarding 去滑滑板 watch TV看电视 do some reading 阅读
shop=go shopping=do some shopping 购物 exercise= take/do (much) exercise=do sports锻炼 take more exercise 做更多的运动 the same as 与什么相同
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be different from 不同
make a difference to 对什么有影响
most of the students=most students大多数学生 activity survey活动调查 do homework做家庭作业 do housework做家务事 eat less meat吃更少的肉 be good for 对什么有益
be good for one's health 有益健康 be bad for对什么有害 want to do sth 想做某事 want sb to do sth想某人做某事 come home from school放学回家 get good grades取得好成绩
some advice 一些建议(advice 是不可数名词 a piece of advice 一则建议 提出建议 take one’s advice 采纳或听从某人的建议) help sb to do sth帮助某人做某事=help sb with sth
hardly= almost not几乎不 hardly ever很少，几乎不，从不 your favorite program你最喜欢的节目 Animal World 动物世界 play soccer踢足球
the result of a survey 调查结果
the result for “watch TV”“看电视”的调查结果 improve your English 提高你的英语 drink milk 喝牛奶 pretty healthy 相当健康
kind of = a little 有点(I think I’m kind of unhealthy.我想我有点不健康)
①Sometimes 偶尔，有时；some times 一些次数；sometime未来某时；some 间。
(1) sometime是副词，意为“在某个时候”，“某时”
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give advice time一些时
Will you come again sometime next week?
(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。 (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。
（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。
②对于“exercise”的理解：当动词，意思是“锻炼，做运动”，相当于“play sports”或“do sports”；
当不可数名词，意思是“运动”，如在“take exercise”中的意思就是“运动”；当可数名词，意思是“练习题”或“××操”，如“finish these exercises”（完成这些练习题），“do morning exercises”（做早操）。
③“一些”：“some”＋可数名词复数/不可数名词，“little”＋不可数名词，“a few”＋可数名词复数。
④关于“some”和“any”：“some”用于“肯定句”和“希望得到对方肯定回答的疑问句”（如“请求”句型和“提供”句型）；
“any”当“一些”讲时，用于“否定句”、“疑问句”和“条件状语从句” “any”当“任何一个”讲时，后边加“可数名词单数”。
⑤“许多”：“many”＋可数名词复数，“much”＋不可数名词，“a lot of＝lots of ”＋不可数名词/可数名词复数。
⑥“never”、“hardly ever”、“sometimes”、“often”、“usually”、“always”等频率副词在句中的位置：“be词之后”或“实义动词之前”（一定要背会这句话，很有用的）。 ⑦every day 与 everyday
every day作状语，译为“每一天”。如： We go to school at 7:10 every day. 我们每天7：10去上学。 I decide to read English every day. 我决定每天读英语。
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everyday 作定语，译为“日常的”。
She watches everyday English on TV after dinner. 她晚饭后在电视上看日常英语。
What's your everyday activity?你的日常活动是什么？1.How often do you exercise? 你（你们）多久锻炼一次身体？
How often + 助动词do(does或did) + 主语 + do sth.?
回答一般是用表示频率的副词，如：once, twice, three times…, sometimes, often, quite, often, never, every day, once a week , twice a month , three times a month , three or four times a month等。
主要频率副词的等级排序：
always(总是) > usually (通常) > often(经常) > sometimes(有时) > hardly ever(很少) > never(从不)
How often do you go to the factory? Twice a week.你们多久到工厂去一次？ 每星期两次。 “How often does he go shopping?” “He goes shopping once a month.” how often / how long / how soon / how far
how long: 1)“（延续）多长时间”，回答用for＋时间段或since＋时间点。（用于各种时态）；2) 询问物体的长度。 How long is the Yellow River? How long have you learned English? I have learned it for 5 years. I have learned it since 5 years ago.
how soon: “还要多久才…，多久以后”，答语常用“in＋时间段”。（用于一般将来时） How soon will she come back? She’ll come back in an hour. how far: “多远”，询问距离。
Can you tell me how far it is from here to your home? How far is it from your home to our school? It’s 2 kilometers away.
2“What do you usually do on weekends?” “ I usually play soccer.” “周末你通常做什么？”“我通常踢足球。”
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