在家里我们常常见到也必须用到的一些日常生活用品,比如:插座。电冰箱。电饭锅。电磁炉。微波炉。电视。电脑。电吹风。饮水机。还有我们学习用的小台灯等等。对了还有电梯,它也是需要电才能供我们乘搭的。爸爸妈妈常常在家教我要怎么安全用电节约用电,我也记住了一些。下面我就跟大家说几点吧!
(一)不要用潮湿抹布擦试带电的家用电器,手上有水时不要去关灯或者拔插头,这样很容易触电。
(二)不可以把水倒在电器上。这样会引起电源短路或爆炸的。如果不小心把水到在带电的电器上,不要慌张立刻拔掉插头。
(三)插座上不要插满电视机。电脑等电器的插头,这样浪费电又会有引发火灾的危险。睡觉前或者外出时最好把不需要用的插座都拔掉因为这样可以节省一点电。这也是妈妈教我的。
(四)检查电器时,必须先断开电源。
(五)到冰箱拿完东西的时候一定要记得关好门。这样可以保护好冰箱又可以省电哦。遇雷雨天气不要看电视,应该拔掉电视机电源。在上学。放学路上发现有电线。电缆,不要走近更不要用手去拉。出去玩时不要站在树下也不要站在山顶上。因为老师说过高耸。凸出的物体容易遭受雷击。
安全用电不仅是我们每一个人的责任和义务,从以上我说的几点来看有一些知识还可以节省很多电呢。日积月累会为我们自己省出一笔不小的费用。省出来的费用可以要求爸爸妈妈给我买好吃的或一些学习用品。一举三得,何乐而不为呢?
刚用的前几天,它令我手持鼠标,畅游世界,十分快乐。后来,爸爸见我这个电脑新手在电脑面前无所事事时,突然拿出一张早买好的3D智力游戏,可我毕竟接触不多,且我人才疏学浅,技术差,只好小心意意的与它交涉。但它毫不领情,我不知道哪一步的`错误操作,这位绅士一改以前面貌,如同一只疯狗。我一看,显示器上出现了一个警告对话框,我被吓得不知所措,连忙叫来爸爸,爸爸毕竟是丰富,只见他用手按住鼠标,噼里啪啦的几下,电脑就能够运转自如了。
从那以后,爸爸就安装了一些动画制作,网站制作的软件。久而久之,多玩几遍之后,我的经验也增长了不少。一次,我从电脑城买来了一张游戏光盘。学着爸爸的样子,一步一步终于装好了,我十分高兴。
我现在的水平提高了,从电脑都不会开到能做Flash动画,以前我当菩萨供起来的电脑,现在已成为了我的好帮手,我用它玩游戏,查阅资料,学到了不少知识。我想:“随着我的技术不断提高,电脑在我的生活中一定会起到更大的作用。
家里我们常常见到也必须用到的一些日常生活用品,比如:插座。电冰箱。电饭锅。电磁炉。微波炉。电视。电脑。电吹风。饮水机。还有我们学习用的.小台灯等等。对了还有电梯,它也是需要电才能供我们乘搭的。爸爸妈妈常常在家教我要怎么安全用电节约用电,我也记住了一些。下面我就跟大家说几点吧!
(一)不要用潮湿抹布擦试带电的家用电器,手上有水时不要去关灯或者拔插头,这样很容易触电。
(二)不可以把水倒在电器上。这样会引起电源短路或爆炸的。如果不小心把水到在带电的电器上,不要慌张立刻拔掉插头。
(三)插座上不要插满电视机。电脑等电器的插头,这样浪费电又会有引发火灾的危险。睡觉前或者外出时最好把不需要用的插座都拔掉因为这样可以节省一点电。这也是妈妈教我的。
(四)检查电器时,必须先断开电源。
(五)到冰箱拿完东西的时候一定要记得关好门。这样可以保护好冰箱又可以省电哦。遇雷雨天气不要看电视,应该拔掉电视机电源。在上学。放学路上发现有电线。电缆,不要走近更不要用手去拉。出去玩时不要站在树下也不要站在山顶上。因为老师说过高耸。凸出的物体容易遭受雷击。
安全用电不仅是我们每一个人的责任和义务,从以上我说的几点来看有一些知识还可以节省很多电呢。日积月累会为我们自己省出一笔不小的费用。省出来的费用可以要求爸爸妈妈给我买好吃的或一些学习用品。一举三得,何乐而不为呢?
尊敬的居民用电客户朋友们大家好!
近年来,随着人民生活水平的不断提高,现代家庭安装使用的电器设备也越来越多,如空调、微波炉、电磁灶等,使得家庭中用电的总功率大幅度上升。我县老旧居民楼居室的电源导线一般设计为6至l0A,总负荷1.5至2 kW,当用电总功率超过2.5 kW时就存在电线短路起火、电表烧毁的可能。最常见的莫过于超负荷、电线短路、接触不良等原因引起的电气火灾。那么,老旧居民住宅中如何安全用电,将电气火灾拒之于门外呢?电力管理者认为关键要加强防范。家庭配电箱的布臵及负荷的要求:在老旧居民住宅中,通常家庭中配电箱上都装有熔断器,在熔断器中又安装有保险丝,当通过保险丝的电流超过允许的安全数值时它就会熔断,因此不能将配电箱安放在可燃物品的上方,防止炽热的熔珠落下后将物品引燃。保险丝的选择要根据家庭中电器总功率来确定,选择过大的保险丝起不到保险作用;选择过小的保险丝则会经常被烧断。保险丝的熔断电流通常为额定电流的1.5一2.0倍,若家庭中电器总功率不超过l.lkW的,选择5A的保险丝就可以了;当通过它的电流超过7A时,保险丝就会自动熔断,达到保护的目的。如果选用的保险丝符合规格但又经常熔断,则说明电源线路或用电器有间题,应及时地查找原因以清除隐患,切不可随意更换粗保险丝或干脆用铝、铜甚至铁丝代替,使熔断器起不到保护作用。如果家中电线的安全用电量在2.2 kW ( 10A ,晚上同时
使用电灯、电视、空调等用电器用电量达到2.1 kW左右,此时再使用一个功率为0.5 kW的电熨斗,电路就超负荷了,要是再使用微波炉就更加危险了。在超负荷情况下使用的电线绝缘层老化速度会加快,如果线芯发出的`热量使绝缘层的温度超过250,电线就会着火,因此对电线的选择要考虑用电电流,不能超负荷用电。有条件的家庭还可安装漏电保护器,当有电流泄漏(包括人身触电等事故发生时,它可以及时动作并切断电源,这样就更增加了安全系数。
电线的选择:目前很多家庭使用的电源线路大多还是十几年前或更早建房时铺设的,与现代家庭电器要求不相适应。在20xx年前所建的居民住宅楼,居室内所配导线全是1.5mm2的双铝芯护套线。线路经过若干年的使用后电线表面的绝缘层逐渐松散、老化,会造成轻微漏电,严重时会造成短路起火,酿成火灾烧毁设施。
目前,县城区内的不少老旧住宅楼房的单元保护开关和个人家庭使用的保护开关可靠性差、质量不符合要求或是无铭牌的低劣产品,当出现用电短路、过负荷、接触不良、漏电等情况时,不能有效起到保护作用,随时都有发生火灾的危险。随着民用电器的快速普及,当初设计的负荷己不能满足供电要求,以臵于在特殊原因导致居民楼房电气线路载流量不够,导致线路温度过高,会使导线的绝缘层老化,导线的绝缘层老化以后,就有发生火灾的危险。
鉴于上述原因,电力公司温馨提示老旧住宅楼的用电客户、朋友们:
1.避免两种或两种以上大功率用电器同时使用;
2.避免多种家电在同一个多用插座上同时开启使用; 3.合理使用空调、多功能电扇。
4.家用电脑、饮水机、电视机、热水器等耗电设备不要同时要开启使用。
4.积极推广使用节能灯具,提倡绿色照明。
to prevent H7N9 we should know some common sense. First of all, it is important for us to prevent H7N9 from ourselves. For example, clean our hands frequently.
Sencondly, do more exercises. Such as running. Lastly, change our diet to keep balence. For example, eat more types of vegetables and drink more water
How to prevent the H7N9?
As is well known,the A flu is spreading throught our country. However, if we negnect it, the deadly H7N9 may cause more infectors,or even more deaths. So what is the most important is that we should take some effective measures to prevent it.They can be listed as follows.
Firstly,it is necessary for you to realize the Avian flu can be prevented if you develop good living habits. For example,you shouldn’t forget to wash your hands before meals.Besides,don’t spit everywhere and try to cover your mouth or nose with paper or hankerchiefs when you have to cough or sneeze.What’s more, remember to wear the mouth-cover if you have to go to the public places, such as the crowded cinemas,supermarkets, buses,where the A flu may spread easily.
Secondly,of course, taking exercise more often and taking good sleep to build your body are wise choices for you to reduce the risk of being infected.
Last but not the least, if you are unlucky to be infected with the slight flu cold, try to stay at home,and take some medicine. Do pay attention to your daily body temperature. If you have a high fever, go to the hospital without delay for further treatment. Make sure you are not expected to come back to school before the cold or flu is cured.
Only by doing like this can you prevent or defeat the A flu in the end.
Nowadays, many famous university campuses have become one of the popular tourist attractions. It has been shown on TV and on the radio that every year thousands and thousands of middle school students visit Tsing Hua University and Peking University and other famous universities in China. In the place far away from the capital city, the local students also visit the universities famous in their own province.
So far as the present situation is concerned, is it a good or bad thing to open the university campus for tourists? Different people have different opinions. On one hand, some people argued that it is a good thing for the students to visit the famous university campus in that it can enable the middle students to get more information about the university and they can have enough time and opportunity to prepare themselves with the chance to get into the university. On the other hand, some people hold a negative view about this phenomenon. In their opinion, the public tourism will have negative effect on the universities because it will not only do harm to the environment but also to the intellectual atmosphere.
In my opinion, the tourism to the universities is not a good thing. The campus is mainly a place for study. With the increasing tourism on the campus, it will ruin the spiritual atmosphere in this learning field.
首先,提纯范文 “谋篇布局”及结构模板。
第一段:提出问题或现象。Nowadays, … … have become one of the popular … …. It has been shown on TV and on the radio that … ….
第二段:正反列举人们的看法。So far as the present situation is concerned, is it a good or bad thing to … …? Different people have different opinions. On one hand, some people argued that it is a good thing for … … in that … …. On the other hand, some people hold a negative view about this phenomenon. In their opinion, … … will have negative effect on … … because it will not only do harm to … … but also to … ….
第三段:摆明自己观点。In my opinion, … … is not a good thing. … … With the increasing … …, it will ruin … ….
其次,提纯范文“段落写作”。
段落写作分为统一性,连贯性和完整性三方面。
统一性(unity:段落开头的主题句应该做到不可太宽泛,也不可太具体,做到有较强的概括性才能使下文做到有的放矢的展开。范文第二段首句以设问的方式提出一个问题is it a good or bad thing就有很强的概况性。下文自然会一方面从好的方面说明,另一方面从坏的方面说明。
连贯性(coherence:关联词是使文章段落之间相互连贯的必要条件。范文中nowadays, on one hand, on the other hand, in one’s opinion即以“启承转合”递进的顺序是文章条理清晰,层层展开。
完整性(completeness:以设问句“So far as the present situation is concerned, is it a good or bad thing to open the university campus for tourists?”开头,这是平时较少运用的段落写作方式——设问法。“On one hand … …. On the other hand, … ….”是段落写作分类列举法的典型用法。
再次,提纯范文“句子写作”。
1. It has been shown that … …
类似句型:It is known to us that … …
It is said that … …
It is reported that … …
It is controversial that … …
2. “… … Tsing Hua University and Peking University and other famous universities … …。”——并列句。并列句是简单的复杂句。但其运用方法并不简单,注意练习并接句的使用,会使句子显的更加饱满。
3. enable v. 使…能够
I gave him full directions to enable him to find the house.
4. in that = because
表“因为”的连词还有since, for, as,如:
The boy was absent because he was ill. = The boy was absent since he was ill.
此句以我们常用的人称开头,句式简单,我们可以通过把since提前改变句式,如:
Since the boy was ill, he was absent. 句式多样化。
最后,提纯范文“措辞”。
1. attraction n. 具有吸引力的事情。
2. thousands and thousands 成千上万的
形容“多”的表达方法:millions and millions
a multitude of
a great deal of
a large amount of
plenty of
many a
3. “some people argued that … …”中的“argue”并不是“讨论,辩论”的意思,而是“认为”。
I argue that … …
I maintain that … …
I claim that … …
I insist that … … = I think that … …
I hold that … …
I assert that … …
I assume that … …
4. negative adj. 否定的.,相反的
hold negative view = hold opposite opinions
5. phenomenon n. 现象
social phenomenon 社会现象
natural phenomenon 自然现象
6. intellectual adj. 聪明的= intelligent, bright, clever
(选词策略:使用最近所学的单词,如intellectual > intelligent > bright > clever
在分析并掌握范文之后,我们需要运用范文知识练习仿写。笔者运用2005年12月范文中的模板结构仿写了2006年12月的四级作文,以供参考:
1. 许多人喜欢在除夕夜看春节晚会
2. 但有些人提出取消春节晚会
3. 我的看法
Nowadays, the Spring Festival Evening has become one of the popular topic and attractions during every traditional New Year’s Eve. It has been shown on TV and on the radio that every year thousands and thousands of Chinese people appear to be accustomed to enjoying the sights and sounds of a brilliant feast, while gathering with their beloved family.
However, an increasing number of people have voiced different opinions towards it. So far as the present situation is concerned, is it a good or bad thing to cancel the Spring Festival Evening? Different people have different opinions. On one hand, some people argued that it is a good thing to amuse the audience in that it is composed by a numerous adequate programs, such as the emotional song, the graceful dance, the funny short sketch, the amusing comic dialogue, the delightful magic, and the marvelous acrobatics and so on. On the other hand, some people hold a negative view about this phenomenon. In their opinion, the Spring Festival Evening will have negative effect on the family harmony because it will not only do harm to having the talks between family members on the Spring Festival Eve but also to enjoying the gourmet meal in a fancy restaurant.
In my opinion, the Spring Festival Evening is a good thing. It may not remain a must for all people, but it can bring us a strong sense of festivity and serve as an alternative among the variety of holiday activities. With the increasing audience of the Spring Festival Evening, it will ruin a distinctive culture during the Spring Festival vacation.
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