2020人教版八年级英语初二上册Unit 2例题与讲解

1、Unit 2How often do you exercise?单元目标预览：突破词汇来源:Z#xx#k.Com来源:学.科.网Section A来源:学&科&网Z&X&X&Ktwice adv.两次；两倍来源:Zxxk.ComP23Section Bthrough prep. 以；凭借；穿过P28来源:学。科。网Z。X。X。Kfull adj. 忙的；满的；充满的P23maybe adv. 大概；或许；可能P24such adj.& pron.这样的；那样的；类似的P29least adv.最小；最少adj.& pron.最小的；最少的P24die v. 消失；消灭；死亡P30Section Bhealth n健康；人的身体(或精神)状态P27however adv. 然而；不过 P30although conj. 虽然；尽管；即使P28more than 多于P31把握句型1.How often do you exercise?你多久锻炼一次？注意how often 在句中的使用。2Although many students like to watch sports，game s

2、hows are the most popular.尽管许多学生喜欢体育节目，但是游戏节目仍然是最受他们欢迎的。注意although引导的让步状语从句。3Exercise such as playing sports is fun，and you can spend time with your friends and family as you play together.像参加体育运动这样的锻炼是有趣的，并且你可以与你的朋友和家人一起花费时间进行锻炼。注意such as在句中的使用。熟悉语法学习应用一般现在时，学会使用频度副词。学会交际学会询问及应答日常活动、做某事的频率和个人喜好的交际用语。写作练笔学习写关于某人进行某活动的文章。Section A教材英汉对译：Section A 2dJack：Hi，Claire，are you free next week?Claire：Hmm.next week is quite full for me，Jack.Jack：Really？How come?Claire：I have dance and piano lessons.Jack：W

3、hat kind of dance are you learning?Claire：Oh，swing dance.Its fun！I have class once a week，every Monday.Jack：How often do you have piano lessons?Claire：Twice a week，on Wednesday and Friday.Jack：Well，how about Tuesday?Claire：Oh，I have to play tennis with my friends.But do you want to come?Jack：Sure！,杰克：你好，克莱尔，下周你有空吗？克莱尔：呣下周我很忙，杰克。杰克：真的吗？怎么会那样？克莱尔：我上舞蹈课和钢琴课。杰克：你学习的是什么舞蹈？克莱尔：噢，摇摆舞。很有趣！我一周上一次课，每周一上课。杰克：你多久上一次钢琴课？克莱尔：一周两次，在周三和周五。杰克：噢，周二怎么样？克莱尔：哦，我要与朋友打网球。你想来参加吗？杰克：当然了！教材知识详解：1How often do you exercise

4、？你多久锻炼一次？句法：本句是含有特殊疑问词how often 的特殊疑问句。词法：how often 多久一次，用于对动作发生的频率进行提问。回答应该是频度副词或表示频率的词组，如always，usually，often，sometimes，hardly，ever，never，every day，once a week，three times a day 等。How often do you go to the movies?你多久去看一次电影？Once a week.一周一次。【例题】_ do you practice English?Every day.AHow longBHow oftenCHow old DHow soonA多长时间；多长(指长度)B多久一次C多大岁数D多久句意“你多久练习一次英语？” “每天。”2.What do you usually do on weekends？周末你通常干什么？句法：本句是主语为第二人称的一般现在时的特殊疑问句，询问在现在一段时间内经常或习惯做的事情。其结构为：What do you动词原形其他？若主语为第三人称单数时，特殊疑问句结构

5、为：特殊疑问词(组)does主语动词原形其他？What do you often do on Mondays?星期一你通常干什么？I often play soccer with my friends.我通常和朋友一起踢足球。词法：usually adv.通常，表频率。一般情况下，usually多用于一般现在时态中。I usually do my homework after supper.我通常在晚饭后做作业。注意：表频率的副词一般放在行为动词之前，be动词、助动词或情态动词之后。知识延伸：usual adj. 通常的，平常的He always does that in the usual way.他总是用惯常的方式做那件事情。【例1】When _she usually exercise?In the morning.Ado BdoesCdid Dis解析由usually 可知用一般现在时，故排除C项；由主语she是第三人称单数可排除A项；由exercise是动词原形可排除D项。答案B句意“她通常什么时候锻炼？”“在早上。”【例2】 I _ shop on Saturdays.Afi

6、nally BalmostCusually DnearlyA最终B几乎C通常D几乎，差不多句意我通常在星期六去商店购物。3twice a week一周两次词法：twice adv. 两次We have Chinese twice a day on Friday.周五我们一天上两节语文课。当提问twice时，可以用疑问词how many times(多少次)，但不能用how often 提问。how often 可提问twice a week.How many times have you watched the program?这节目你看了多少次？How often do you watch the program?你多久看一次这个节目？注意：英语中，once表示“一次”，twice表示“两次”，从“三次”起用“基数词times”表示次数。three times三次，five times五次。【例1】The Smiths go to Australia _ a year.Aone BtwoCthree Dtwice解析one，two，three 是基数词，后应直接接名词，而year 前

7、有冠词，twice表示“两次”。答案D句意史密斯夫妇一年去澳大利亚两次。【例2】对画线部分提问I went to Hainan twice last year._点拨：画线部分表示的是次数，那么就应该用询问次数的疑问词how many times 来提问。答案：How many times did you go to Hainan last year?4.Hmm.next week is quite full for me，Jack.呣下周我很忙，杰克。词法：full adj. 忙的；满的；充满的常用短语为be full of.，意为“充满”；反义词是empty，意为“空的”。The bus is full of people.公共汽车里挤满了人。知识延伸：full adj. 吃饱的；过饱的，其反义词是hungry，意为“饥饿的”。Are you hungry or full？你饿了还是饱了？【例题】There is a glass on the table.Its full _ water.Awith BinCof Dat点拨：本题考查full的用法。be full of意为“充满”

8、，故用介词of。句意为“桌子上有一个玻璃杯。它装满了水”。答案：C5I go to the movies maybe once a month.我可能一月去看电影一次。词法：maybe adv. 大概；或许；可能Maybe that man is a policeman.或许那人是警察。词汇解析：maybe 和may bemaybe副词，意为“或许；大概”，常位于句首表推测。Maybe he is at Jims home.或许他在吉姆家。may be由情态动词may和 be构成，意为“可能”，在句中作谓语。He may be right.他可能是对的。【例题】_ Li Hua wants to be an astronaut like Yang Liwei.AMay be BMayCAlso DMaybe解析首先看句子，A项可作谓语，B项与动词连用构成谓语，本句不缺少谓语，故排除A、B两项；C项不放在句首，而是置于系动词、助动词、情态动词后，实义动词前，故排除。答案D句意或许李华想成为像杨利伟那样的宇航员。6He plays at least twice a week.他至少一周踢(足球) 两次。词法：least adv.最小；最少adj.& pron.最少的；最小的，它是little的最高级。He has least money of all of us.在我们所有人中他的钱最少。She works least.她工作最少。We have least time.我们时间最少。at least 至少；不少于；起码，其反义短语为：at most 至多At least he should say thanks.他至少应该说声谢谢。【例题】There are _ three thousand people in the pa

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