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This Is What Happens When You Quit Smoking Now

This Is What Happens When You Quit Smoking Now
This Is What Happens When You Quit Smoking Now

It’s estimated that in the U.S. up to 25% of the population 18 years of age and older actively smoke cigarettes. Scientists have identified approximately 4,000 chemicals in tobacco smoke, with more than 50 of them known to cause various cancers. As a

matter of fact, the World Health Organization, or WHO, has stated that globally one person dies every six seconds from the use of tobacco. It is estimated that one out of every two smokers will die from tobacco-related diseases, such as cancer, chronic obstructive pulmonary disease (COPD), heart attack, stroke and other illnesses.

While the effects from smoking tobacco are cumulative, it is possible to reverse the effects of smoking. Quitting smoking now greatly reduces the chances that you will experience a smoking-related disease, and could increase your lifespan significantly. Your body will begin to heal almost immediately after your last cigarette, and will continue to repair the damage in the days, weeks, months, and years after you have quit.

What happens after you stop smoking?

* In the 20 minutes immediately following your last cigarette, your blood pressure and pulse rate begin to return to normal and the circulation to your extremities increases, delivering much needed, oxygen-rich blood.

* Eight hours after your last cigarette, the carbon monoxide in your system has been 100% eliminated, replaced by the oxygen your cells need to function normally.

* 24 hours after your last cigarette, your risk of having a heart attack begins to decrease thanks to the normalization of your heart rate, blood pressure and blood oxygenation.

* 48 hours after your last cigarette, the nerve endings that have been blunted begin to reawaken and your sense of smell and taste begin to re-emerge.

* Between two weeks and three months after your last cigarette, your circulation continues to improve and you can now breathe easier. Your lungs now produce less phlegm and your lung function has begun to improve. Your ability to participate in physical activity is greater, as shortness of breath becomes less of an issue.

* In one to nine months after your last cigarette, you will notice a significant decrease in your smoker’s cough. Sinus congestion lessens and fat igue and shortness of breath become virtually non-existent. The tiny, hair-like structures that

line the interior of your lung cavities become active once more, and your lungs are now functioning much like they did before you began smoking.

* One year after your last cigarette, your risk of having a heart attack is less than half of that of a regular smoker.

* Between five and 15 years after your last cigarette, you are at no more risk of having a stroke than other non-smokers.

* 10 years after your last cigarette, your risk of developing lung cancer drops significantly. Additionally, your risk of developing other cancers, such as that of the mouth, throat, esophagus, bladder, kidney and pancreas, significantly decreases. Although you have not smoked a cigarette in 10 years, you still have a higher risk of developing lung cancer than someone who has never smoked, but your risks are significantly decreased than if you had continued smoking.

Why is it so difficult to quit smoking?

So, with all of the negative health impacts that are known to be associated with cigarette smoking, why would we continue to smoke?

In one word: nicotine.

Nicotine is the active ingredient in tobacco and what addicts us to smoking in the first place. It is an organic compound known as an alkaloid and can be found in the leaves of several species of plants, although the main route of consumption is through tobacco. It can also be found in the nightshade, or Solanaceae, family of plants, including tomatoes, potatoes, aubergines (eggplant) and peppers. While nicotine by itself is not carcinogenic, it does contribute to apoptosis by inhibiting UV-induced activation of cell death, a process known to interfere with your body’s ability to destroy potentially cancerous cells.

When smokers try to cut back or quit smoking, they experience withdrawal, a rather unpleasant process whereby the brain triggers a cascade of symptoms designed to drive us to consume nicotine. For most smokers, quitting cold turkey is not an option. The withdrawal process is much too unpleasant and difficult to overcome. However using a nicotine replacement therapy while withdrawing from nicotine has shown to be a successful alternative and has helped many people quit for good.

更多英语阅读:必克英语https://www.wendangku.net/doc/0b12882069.html,

WHEN与WHILE用法区别

WHEN与WHILE用法区别 when, while这三个词都有"当……时候"之意,但用法有所不同,使用时要特别注意。 ①when意为"在……时刻或时期",它可兼指"时间点"与"时间段",所引导的从句的动词既可以是终止性动词,也可是持续性动词。如: When I got home, he was having supper.我到家时,他正在吃饭。 When I was young, I liked dancing.我年轻时喜欢跳舞。 ②while只指"时间段",不指"时间点",从句的动词只限于持续性动词。如:While I slept, a thief broke in.在我睡觉时,盗贼闯了进来。 辨析 ①when从句与主句动作先后发生时,不能与while互换。如: When he has finished his work, he takes a short rest.每当他做完工作后,总要稍稍休息一下。(when = after) When I got to the cinema, the film had already begun.当我到电影院时,电影已经开始了。(when=before) ②when从句动词为终止性动词时,不能由while替换。如: When he came yesterday, we were playing basketball.昨天他来时,我们正在打篮球。 ③当从句的谓语是表动作的延续性动词时,when, while才有可能互相替代。如:While / When we were still laughing, the teacher came in.正当我们仍在大声嬉笑时,老师进来了。 ④当从句的谓语动词是终止性动词,而且主句的谓语动词也是终止性动词 时,when可和as通用,而且用as比用when在时间上更为紧凑,有"正当这时"的含义。如: He came just as (or when) I reached the door.我刚到门那儿,他就来了。 ⑤从句的谓语动词如表示状态时,通常用while。如: We must strike while the iron is hot.我们应该趁热打铁。 ⑥while和when都可以用作并列连词。

101个少儿英语的课堂游戏-精心整理!

101个少儿英语课堂游戏 课堂游戏设计 在小学英语课堂教学中,为了调动孩子们的积极性,激发他们对英语的兴趣,课堂游戏是必不可少的。好的课堂教学游戏不仅能让孩子们玩得尽兴,而且还能让他们在不知不觉中掌握生词以及一些难懂的句子,从而达到一箭双雕的效果。 我们的一堂英语课可以大致分为“warm up”, “review”,“read”,和“practice”四个环节,每个环节均可穿插适当的游戏用来促进教学。下面具体讲述每个环节可以使用的游戏。 Ⅰ、Warm up 热身环节能调动学生的热情,能使学生兴奋起来。这个环节可以采用歌谣,歌曲,游戏等方式。游戏方式我们有很多种。 游戏1 stand up/sit down/run/go back to your seat. 这个游戏有几种玩法,旨在训练学生的反应能力(在掌握语言的基础上)。 玩法一、老师说:“Stand up/Sit down/Run.”学生就马上做,如果老师说:“Go back to your seat.”学生马上回座位; 玩法二、老师可以拿四张椅子,叫五个人玩此游戏。如果老师说:“Go back to your seat.”那么大家都去抢位子,哪个没有抢到就要受到惩罚; 玩法三、老师说:“Stand up”,学生做“Sit down”,即学会做的要和老师相反,谁错了就要被淘汰。 玩法四、H和SIMON SAYS 结合起来。

游戏2 Wooden man木偶人。 老师一边走一边说“walk”,然后边走边说,越走越快,学生要跟着老师一起做,同样输入“jump”“run”。如果老师说“Stop”,学会就不能动了,否则就要受到惩罚。 游戏3 Hello-hi 这个游戏的规则很简单,只要求学生说的和老师的相反。例如老师大声说“Hello”,学生则小声说“Hi”;老师小声说“Hello-Hello-Hi”,学生应该大声回答“Hi -Hi-Hello”。游戏的节奏和难易程度由学生的反应确定。 游戏4.红绿灯 叫一个学生到讲台前面,然后背对着底下的学生,说:RED ,GREEN,STOP!说RED ,GREEN的时候,底下的小朋友可以动,说STOP的时候不能动,说三四次RED ,GREEN,这个学生就去触摸后面的小朋友。 游戏5报数 游戏6.Happy song 游戏7.数字抱团 老师任意说出一个数字,例如老师说1,1个小朋友自己抱团,老师说2,2个小朋友抱团。以此类推,老师说几,就几个小朋友抱成一团。

When引导的定语从句与时间状语从句的区分

一、从句是如何出题的? 1. 时态 2. 考连接词 3. 考语言顺序 二、学好从句的两个基本条件 1. 时态 2. 从句的三个必须:①必须是句子;②必须有连接词;③必须是陈述句 三、状语从句、宾语从句、定语从句重点 1.如何判断何种从句 2. 从句的时态 3. 从句的连接词与扩展 4. 经典单选、从句与选词、长句子分析 四、如何判断三种从句 1. 状语从句无先行词 2. 宾语(表语)从句无先行词有动词或词组 3. 定语从句先行词多为名词或代词 一、When引导的定语从句与时间状语从句的区分 1. when的译法不同。在时间状语中,when 翻译成“当……的时候” I want to be a teacher when I grow up. 当我长大的时候,我要做一名老师。在定语从句中,when不翻译。I won't forget the day when he says he loves me. 我不会忘记他说爱我的那一天。 2. 在时间状语中,when从句前面或后面是句子;定语从句中,when 从句不能位于句首,且通常when前为表示时间的名词day、year等。 3. when在从句的作用不同。在时间状语从句中,when是连词,只起连接主句和从句的作用,不做从句的任何成分。不过when引导的时间状语从句修饰主句的谓语,做主句的时间状语。 在定语从句中,when是关系副词,在从句中代替先行词做从句的时间状语,修饰从句的谓语。 例1 I will always remember the days when I lived with my

grandparents in the country. 例2 I always remember the days in the country when I see the photo of my grandparents. 点评:例1意为“我会永远记得跟我祖父母一起住在乡下的那些日子”,其中when 引导的是一个定语从句, 修饰the days, when在从句中作时间状语。例2意为“当我看到祖父母的照片时,总是会想起在乡下的那些日子”,其中when 引导的从句并不修饰前面的名词the country,因此可判定为时间状语从句。 例1中的when可用in which替代,即从句可改为...in which I lived with my grandparents in the country. 例2中从句前有名词,但根据句意可 知并不是从句所修饰的对象,也不能用“介词+ which”来替代。 二、判断关系代词与关系副词 方法一:用关系代词,还是关系副词完全取决于从句中的谓语动词。及物动词后面无宾语,就必须要求用关系代词;而不及物动词则要求用关系副词。例如: This is the mountain village where I stayed last year. 这是我去年呆过的山村。 I'll never forget the days when I worked together with you. 我永远不会忘记与你共事的日子。 判断改错: 1. This is the mountain village where I visited last year. 2. I will never forget the days when I spent in the countryside. 3. This is the mountain village (which)I visited last year.

过去进行时、when和while引导时 间状语从句的区别

过去进行时过去进行时表示过去某一时刻或者某段时间正在进行或发生的动作,常和表过去的时间状语连用,如: 1. I was doing my homework at this time yesterday. 昨天的这个时候我正在做作业。 2. They were waiting for you yesterday. 他们昨天一直在等你。 3. He was cooking in the kitchen at 12 o'clock yesterday. 昨天12点,他正在厨房烧饭。 过去进行时的构成: 肯定形式:主语+was/were+V-ing 否定形式:主语+was not (wasn't)/were not (weren't)+V-ing 疑问形式:Was/Were+主语+V-ing。 基本用法: 1. 过去进行时表示过去某一段时间或某一时刻正在进行的动作。常与之连用的时间状语有,at that time/moment, (at) this time yesterday (last night/Sunday/week…), at+点钟+yesterday (last night / Sunday…),when sb. did sth.等时间状语从句,如: 1)What were you doing at 7p.m. yesterday? 昨天晚上七点你在干什么? 2)I first met Mary three years ago. She was working at a radio shop at the time. 我第一次遇到玛丽是在三年前,当时她在一家无线电商店工作。 3)I was cooking when she knocked at the door. 她敲门时我正在做饭。 2. when后通常用表示暂短性动词,while后通常用表示持续性动词,而while所引导的状语从句中,谓语动词常用进行时态,如: When the car exploded I was walking past it. = While I was walking past the car it exploded. 3. when用作并列连词时,主句常用进行时态,从句则用一般过去时,表示主句动作发生的过程中,另一个意想不到的动作发生了。如: I was walking in the street when someone called me. 我正在街上走时突然有人喊我。 4. when作并列连词,表示“(这时)突然”之意时,第一个并列分句用过去进行时,when引导的并列分句用一般过去时。如:

少儿英语课堂游戏-精华

课堂游戏设计 在小学英语课堂教学中,为了调动孩子们的积极性,激发他们对英语的兴趣,课堂游戏是必不可少的。好的课堂教学游戏不仅能让孩子们玩得尽兴,而且还能让他们在不知不觉中掌握生词以及一些难懂的句子,从而达到一箭双雕的效果。我们的一堂英语课可以大致分为“warm up”, “review”,“read”,和“practice”四个环节,每个环节均可穿插适当的游戏用来促进教学。下面具体讲述每个环节可以使用的游戏。 Ⅰ、Warm up 热身环节能调动学生的热情,能使学生兴奋起来。这个环节可以采用歌谣,歌曲,游戏等方式。游戏方式我们有很多种。 游戏1 stand up/sit down/run/go back to your seat. 这个游戏有几种玩法,旨在训练学生的反应能力(在掌握语言的基础上)。玩法一、老师说:“Stand up/Sit down/Run.”学生就马上做,如果老师说:“Go back to your seat.”学生马上回座位;玩法 二、老师可以拿四张椅子,叫五个人玩此游戏。如果老师说:“Go back to your seat.”那么大家都去抢位子,哪个没有抢到就要受到惩罚; 玩法三、老师说:“Stand up”,学生做“ Sit down”,即学会做的要和老师相反,谁错了就要被淘汰。玩法四。 H和 SIMON SAYS 结合起来。 游戏2 Wooden man木头人。 老师一边走一边说“walk”,然后边走边说,越走越快,学生要跟着老师一起做,同样输入“jump”“run”。如果老师说“Stop”,学会就不能动了,否则就要受到惩罚。

游戏3 Simon says. 这是一个很经典的游戏。如果老师说:“I say touch your nose.” 学生就不要做动作,如果老师说:“Simon says:“touch your nose.”” 那么学生就要做动作。凡是听到“Simon says”就要做动作。这个游戏也可用在句型操练的环节。 游戏4 Hello-hi 这个游戏的规则很简单,只要求学生说的和老师的相反。例如老师大声说“Hello”,学生则小声说“Hi”;老师小声说“Hello-Hello-Hi”,学生应该大声回答“Hi -Hi-Hello”。游戏的节奏和难易程度由学生的反应确定。 游戏5.红绿灯 叫一个学生到讲台前面,然后背对着底下的学生,说:RED ,GREEN,STOP! 说RED ,GREEN的时候,底下的小朋友可以动,说STOP的时候不能动,说三四此RED ,GREEN,这个学生就去触摸后面的小朋友。 游戏6报数 游戏7.Happy song 游戏8. 抱团游戏 老师说1.一个小朋友自己抱团,老师说2.2个小朋友抱团。同样,老师说几,几个小朋友抱成一团。 游戏9. BIG small. 游戏10. 刮大风。 主要针对换位置来说,同类别的单词交换位置。

when 和while的用法区别

when 和while的用法区别 ①when是at or during the time that, 既指时间点,也可指一段时间; while是during the time that,只指一段时间,因此when引导的时间状语从句中的动词可以是终止性动词,也可以是延续性动词,而while从句中的动词必须是延续性动词。 ②when 说明从句的动作和主句的动作可以是同时,也可以是先后发生;while 则强调主句的动作在从句动作的发生的过程中或主从句两个动作同时发生。 ③由when引导的时间状语从句,主句用过去进行时,从句应用一般过去时;如果从句和主句的动作同时发生,两句都用过去进行时的时候,多用while引导,如: a. When the teacher came in, we were talking. 当此句改变主从句的位置时,则为: While we were talking, the teacher came in. b. They were singing while we were dancing. ④when和while 还可作并列连词。when表示“在那时”;while表示“而,却”,表对照关系。如: a. The children were running to move the bag of rice when they heard the sound of a motor bike. 孩子们正要跑过去搬开那袋米,这时他们听到了摩托车的声音。 b. He is strong while his brother is weak. 他长得很结实,而他弟弟却很瘦弱。 when,while,as引导时间状语从句的区别 when,while,as显然都可以引导时间状语从句,但用法区别非常大。 一、when可以和延续性动词连用,也可以和短暂性动词连用;而while和as只能和延续性动词连用。 ①Why do you want a new job when youve got such a good one already?(get 为短暂性动词)你已经找到如此好的工作,为何还想再找新的? ②Sorry,I was out when you called me.(call为短暂性动词)对不起,你打电话时我刚好外出了。 ③Strike while the iron is hot.(is为延续性动词,表示一种持续的状态)趁热打铁。 ④The students took notes as they listened.(listen为延续性动词)学生们边听课边做笔记。 二、when从句的谓语动词可以在主句谓语动作之前、之后或同时发生;while和as从句的谓语动作必须是和主句谓语动作同时发生。 1.从句动作在主句动作前发生,只用when。 ①When he had finished his homework,he took a short rest.(finished先发生)当他完成作业后,他休息了一会儿。 ②When I got to the airport,the guests had left.(got to后发生)当我赶到飞机场时,客人们已经离开了。 2.从句动作和主句动作同时发生,且从句动作为延续性动词时,when,while,as都可使用。

(精选)英语课堂小游戏

小学英语课堂游戏集锦(36个) Game 1:友谊之圈 目的:用英语向别人进行简单的问候、自我介绍及告别。 方法:1. 大家一起面对面围成两个同心圆。 2. 一起拍手唱歌或放音乐,两个圈分别朝相反方向移动。歌曲结束,或老师喊”Stop!”时,每位同学就与这时正好和自己面对面的同学进行问候对话。 3.当大家安静下来表示都做完以后,重新开始一首歌曲拍手转圈。 4. 游戏的乐趣在于,学生不知道自己下一个将会面对谁,也许是新的同学,也许就是刚才问候过的同学。Game 2:抛绣球 目的:练习使用”What\’s your name?” “I\’m…”以及一些学过的问候语。 道具:沙包 方法:1.学生坐在座位上,或者站成一队,老师站在学生前面,背向学生抛球,球离手后转身面对学生。 2. 谁接到球就和老师进行对话练习。对话结束后,由他取代老师的位置,上前抛球继续游戏。 3. 此方法可扩展到其他需要两个人进行对话练习的语言点。 Game 10:猜人数 目的:熟悉数字1~5的英文表达 方法: 1.选出一位同学站在前面,背对其余站成一排的同学。 2.老师暗示后排的其中几位同学,并给他们制订问候语。 3. 接到暗示的同学一起向前面的那位同学问候。对话结束后,后排的同学一起向前面那位同学提问:How many? 4. 前面的那位同学根据他听到的声音,判断刚才有几位同学和他打招呼,并说出英文数字。判断正确得一枚贴纸或其他奖励。判断失误继续猜,知道猜对为止。 5.可以让同学们自愿上来做,也可轮流做。Game3:抢椅子 目的:熟悉指令”Stand up.”和”Sit down.”

道具:椅子若干--比参加人数少一个 方法:1.大家讲椅子摆成圆圈,一边围着椅子转,一边数数。 2.当老师喊”Sit down”时,每个人都尽快抢一把椅子坐下。没有抢到椅子的被淘汰出局。 3.老师再喊”Stand up.”。同学们都起立,老师拿走一把椅子,重新开始。坚持到最后的一位同学是获胜者。Game 4:打板猜图 目的:体会That的距离感。用What\’s that? It\’s a …提问和回答。 道具:1.所学单词的单词卡若干;每张单词卡上连一根线;沙包 方法:把连着单词卡的线头贴在黑板上,这样卡片就可以挂在黑板上,并能够翻开正反面了。在距离黑板两三米的地方设一条界线。 2. 卡片挂号后,给学生几秒钟时间默记每张图的位置,然后将卡片反过来,背面向外。 3. 请一位学生上来,站在接线后拿沙包打卡片,然后用问其他同学What\’s that? 。同学们或猜或根据自己记忆判断,用It\’s a …说出来。说对的同学得到一枚贴纸。然后换另一个学生来扔沙包。 4. 将猜对的卡片翻开,没有猜对的卡片再翻过去,重复几次后,再交换图片的位置,避免学生都击打看过又翻过去的图片。 5. 这个游戏可以和What\’s this? 的游戏交替进行,让学生体会this 和that 之间的距离感。Game 5:职业演员 目的:练习He\\She is a doctor\\ driver\\ policeman\\ nurse\\ farmer\\ teacher. 方法:1.学生在座位坐成一圈。 2.先由老师上前做示范,做一个动作表示某种职业。然后让学生举手猜他表演的是什么。 3.猜中的同学代替老师的位置上前表演,其余同学猜,每次都由先猜对的同学上前表演。 4. 注意,下面的同学应用He\\ She is a …来猜。Game 6:找胳膊 目的:区分He、She;熟悉身体各部位的表达方法。

when while用法区别

While和When在过去进行时中两者的区别如下: ①when是at or during the time that, 既指时间点,也可指一段时间;while是during the time that,只指一段时间,因此when引导的时间状语从句中的动词可以是终止性动词,也可以是延续性动词,而while 从句中的动词必须是延续性动词。 ②when 说明从句的动作和主句的动作可以是同时,也可以是先后发生;while 则强调主句的动作在从句动作的发生的过程中或主从句两个动作同时发生。 ③由when引导的时间状语从句,主句用过去进行时,从句应用一般过去时;如果从句和主句的动作同时发生,两句都用过去进行时的时候,多用while引导,如: a. When the teacher came in, we were talking. 当此句改变主从句的位置时,则为: While we were talking, the teacher came in. b. They were singing while we were dancing. ④when和while 还可作并列连词。when表示“在那时”;while表示“而,却”,表对照关系。如: a. The children were running to move the bag of rice when they heard the sound of a motor bike. 孩子们正要跑过去搬开那袋米,这时他们听到了摩托车的声音。 b. He is strong while his brother is weak. 他长得很结实,而他弟弟却很瘦弱。 when; while 当……时候 while能用when代替; 但是when却不一定能用while代替. while+从句, 动作一定会延续 when+延续性动词/瞬间动词; when he arrived

过去进行时、when和while引导时间状语从句的区别

过去进行时 过去进行时表示过去某一时刻或者某段时间正在进行或发生的动作,常和表过去的时间状语连用,如: 1. I was doing my homework at this time yesterday. 昨天的这个时候我正在做作业。 2. They were waiting for you yesterday. 他们昨天一直在等你。 3. He was cooking in the kitchen at 12 o'clock yesterday. 昨天12点,他正在厨房烧饭。 过去进行时的构成: 肯定形式:主语+was/were+V-ing 否定形式:主语+was not (wasn't)/were not (weren't)+V-ing 疑问形式:Was/Were+主语+V-ing。 基本用法: 1. 过去进行时表示过去某一段时间或某一时刻正在进行的动作。常与之连用的时间状语有,at that time/moment, (at) this time yesterday (last night/Sunday/week…), at+点钟+yesterday (last night / Sunday…),when sb. did sth.等时间状语从句,如: 1)What were you doing at 7p.m. yesterday? 昨天晚上七点你在干什么? 2)I first met Mary three years ago. She was working at a radio shop at the time. 我第一次遇到玛丽是在三年前,当时她在一家无线电商店工作。 3)I was cooking when she knocked at the door. 她敲门时我正在做饭。 2. when后通常用表示暂短性动词,while后通常用表示持续性动词,而while所引导的状语从句中,谓语动词常用进行时态,如: When the car exploded I was walking past it. = While I was walking past the car it exploded. 3. when用作并列连词时,主句常用进行时态,从句则用一般过去时,表示主句动作发生的过程中,另一个意想不到的动作发生了。如: I was walking in the street when someone called me. 我正在街上走时突然有人喊我。 4. when作并列连词,表示“(这时)突然”之意时,第一个并列分句用过去进行时,when引导的并列分句用一般过去时。如: 1)I was taking a walk when I met him. 我正在散步,突然遇见了他。 2)We were playing outside when it began to rain. 我们正在外边玩,这时下起雨来了。 过去进行时和一般过去时的用法比较: 1)过去进行时表示过去正在进行的动作,而一般过去时则表示一个完整的动作。 例如:They were writing letters to their friends last night. 昨晚他们在写信给他们的朋友。(没有说明信是否写完) They wrote letters to their friends last night.

when和while的用法和区别

when和while的用法和区别 while和when都是表示同时,到底句子中是用when还是while主要看从句和主句中所使用的动词是短暂性动作(瞬时动词)还是持续性动作。 1、若主句表示的是一个短暂性的动作,而从句表示的是一个持续性动作时,两者都可用。如:He fell asleep when [while] he was reading. 他看书时睡着了。 I met him when [while] I was taking a walk in the park. 我在公园散步时遇到了他。 2、若主、从句表示两个同时进行的持续性动作,且强调主句表示的动作延续到从句所指的整个时间,通常要用while。如: Don’t talk while you’re eating. 吃饭时不要说话。 I kept silent while he was writing. 在他写的时候,我默不作声。 3、若从句是一个短暂性动作,而主句是一个持续性动作,可以when 但不用while。如:When he came in, I was listening to the radio. 他进来时,我在听收音机。 It was raining hard when we arrived. 我们到达时正下着大雨。 4、若主、从句表示的是两个同时(或几乎同时)发生的短暂性动作,一般要用when。如: I thought of it just when you opened your mouth. 就在你要说的时候,我也想到了。 至于什么是短暂性动作,什么是持续性动作,其实有个很简单的规律。就是如果是进行时态,一般是持续性的。如果是过去式,一般是短暂性动作。 对于,填写when还是while的问题,通常首先看主句和从句中的时态,再根据以上4个规律来判断填写那个单词。 When和While的区别 通常when 后面接一般过去时while 后面接过去进行时 ①when是at or during the time that, 既指时间点,也可指一段时间,while是during the time that,只指一段时间,因此when引导的时间状语从句中的动词可以是终止性动词,也可以是延续性动词,而while从句中的动词必须是延续性动词。 ②when 说明从句的动作和主句的动作可以是同时,也可以是先后发生;while 则强调主句的动作在从句动作的发生的过程中或主从句两个动作同时发生。 ③由when引导的时间状语从句,主句用过去进行时,从句应用一般过去时;如果从句和主句的动作同时发生,两句都用过去进行时的时候,多用while引导,如: a. When the teacher came in, we were talking. 当此句改变主从句的位置时,则为: While we were talking, the teacher came in. b. They were singing while we were dancing. ④when和while 还可作并列连词。when表示“在那时”;while表示“而,却”,表对照关系。如: a. The children were running to move the bag of rice when they heard the sound of a motor bike.

英语课堂游戏100种

英语课堂教学游戏 一、字母教学游戏(1-22) 二、音标教学游戏(23-32) 二、单词教学游戏(33-63) 三、句型教学游戏(64-100) 字母教学游戏(1-22) 1.抢读字母 这是一个训练学生认读字母的游戏,教师将全班分成若干小组,然后逐个出示字母卡片,学生们举手抢答,教师让最先举手的学生读出该字母,读对的给该组记10分,最后得分最多的组为优胜。 2.抢答字母组 将全班分成两个小组,并把两套字母卡片分别发给各组学生。游戏开始,教师用中文说:"乐谱的七个调","美国","圆心和半径","中华人民共和国",持有这些字母卡片的学生应立即站起来并举起字母"ABCDEFG,"USA",o,r","PRC"等,答得既快又准的组获胜。 3.看谁快 这是一个训练学生听字母的游戏,将全班分成两组,一组学生持大写字母,另一组学生持小写字母,教师快速念字母,要求持有该字母的学生迅速站起来,最先站起来的人得两分,后站起来的得一分,没站出来的得零分,得分多的组获胜。 4.听音辨字母 这是一个训练学生辨别字母的游戏。教师可将读音易混的字母分别写在板上,如GJOW,等,共准备2~4套,同时将学生分成2~4个小组,每组抽一名学生到前面向全班站好,教师发给每人一套卡片(2~4张为宜),游戏开始,教师念其中的一个字母,学生应立即找出并高举起该字母,先找对的得2分,后找对的得1分,没找对的不得分,最后得分多的组为优胜。 5.听音摘字母比赛 这是一个训练学生听认字母能力的游戏,教师先把所学过的大小写字母写在卡片上,按大小写把卡片分成两组贴在黑板上,然后把学生分成两组。游戏开始,每组的第一名学生上黑板前等候,教师说出一个字母,这两名学生就立即摘下教师所念的字母,放到讲台上,一人摘大写字母,另一人摘小写字母,摘得对而快的得2分,对而慢的得1分,不对的不得分,在教师念第一个字母时,各组的第二名学生应上前等候,在第一名学生摘完字母后,教师立即说另一个字母,游戏接着进行,最后得分多的组为优胜。 6.图形中找字母 教师在黑板上画一些图形,让学生找出其中所含的字母,例如: CDIO bdpq CIDO EFHIL 7.宾狗(Bingo) 这是一个训练学生听写认读字母能力的游戏,每个学生准备一张纸,并在上面画一个井

when,while,as引导时间状语从句的区别

when,while,as引导时间状语从句的区别 when,while,as显然都可以引导时间状语从句,但用法区别非常大。 一、when可以和延续性动词连用,也可以和短暂性动词连用;而while和as只能和延续性动词连用。 ①Why do you want a new job when youve got such a good one already?(get 为短暂性动词)你已经找到如此好的工作,为何还想再找新的? ②Sorry,I was out when you called me.(call为短暂性动词)对不起,你打电话时我刚好外出了。 ③Strike while the iron is hot.(is为延续性动词,表示一种持续的状态)趁热打铁。 ④The students took notes as they listened.(listen为延续性动词)学生们边听课边做笔记。 二、when从句的谓语动词可以在主句谓语动作之前、之后或同时发生;while 和as从句的谓语动作必须是和主句谓语动作同时发生。 1.从句动作在主句动作前发生,只用when。 ①When he had finished his homework,he took a short rest.(finished先发生)当他完成作业后,他休息了一会儿。 ②When I got to the airport,the guests had left.(got to后发生)当我赶到飞机场时,客人们已经离开了。 2.从句动作和主句动作同时发生,且从句动作为延续性动词时,when,while,as都可使用。 ①When /While /As we were dancing,a stranger came in.(dance为延续性动词)当我们跳舞时,一位陌生人走了进来。 ②When /While /As she was making a phonecall,I was writing a letter.(make为延续性动词)当她在打电话时,我正在写信。 3.当主句、从句动作同时进行,从句动作的时间概念淡化,而主要表示主句动作发生的背景或条件时,只能用as。这时,as常表示“随着……”;“一边……,一边……”之意。 ①As the time went on,the weather got worse.(as表示“随着……”之意) ②The atmosphere gets thinner and thinner as the height increases.随着高度的增加,大气越来越稀薄。 ③As years go by,China is getting stronger and richer.随着时间一年一年过去,中国变得越来越富强了。 ④The little girls sang as they went.小姑娘们一边走,一边唱。 ⑤The sad mother sat on the roadside,shouting as she was crying.伤心的妈妈坐在路边,边哭边叫。 4.在将来时从句中,常用when,且从句须用一般时代替将来时。 ①You shall borrow the book when I have finished reading it.在我读完这本书后,你可以借阅。 ②When the manager comes here for a visit next week,Ill talk with him about this.下周,经理来这参观时,我会和他谈谈此事。 三、when用于表示“一……就……”的句型中(指过去的事情)。 sb.had hardly(=scarcely)done sth.when...=Hardly /Scarcely had sb.done sth.when...

常见的英语课堂游戏有哪些

常见的英语课堂游戏有哪些 英语课堂游戏导入篇一 模仿秀imitateshow 游戏说明:教师带领学生一起模仿小动物进行单词操练。 传球、拍球passorbouncetheball 游戏说明:请两组学生边传球边传单词或句子,看哪组同学传的又快又好,可用于单词或句型的分组操练。 照镜子lookatthemirror 游戏说明:学生与老师做同样的动作并操练单词或句型。 拍手停claphands 游戏说明:教师与学生边拍手边说单词,教师停则学生停;此游戏可用于单词操练,可以集中学生注意力。 长大个growtaller 游戏说明:学生的语音根据教师的手势变幻,声音由小变大,可用于单词操练并集中学生学习的注意力。 木头人woodenchild 游戏说明:教师或选一名学生背对学生进行单词操练,当教师或学生转过身时其他学生保持原来的动作变成木头人。 吹气球blowtheballoons 游戏说明:学生边说单词边做吹气球的动作,声音随着气球的大小发生相应的变化,用于操练单词。 二人转turnandturn

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When引导的定语从句与时间状语从句的区分

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