人类为了生存所进行的资源及能源的开发和利用是完全必要的,但是所有开发和利用都应当从整个自然界,尤其是地球环境的生态系统,即所谓生物圈的平衡状况加以全面地和科学地考虑,然后再在保护自然环境、维持生态多样性的基础上,达到人和自然之间的协调。
当前,不但要加强和扩大那些具有原始性状,即受人类影响较少的生态系统,通过人为的保护和再建、使其维持原始的自然面貌,保持生态系统内部各要素的平衡,而且要重视人类在认识化学物质毒性问题上所取得的宝贵。
对于各种比学物质,从生产到废弃的整个过程,都要考虑一个防止污染环境的安全措施,更应当寻求无污染的生产方法,制取无毒性的化学产品,显然,这是给化学工作者提出的一个更高、更难的任务
我们一方面都在埋怨环境被污染,可是我们自己又何尝不是在污染环境呢!比如,我们一方面在大声疾呼抽烟有害健康,而另一方面又在大批量地生产和销售香烟。
我们一方面大力提倡不乱丢垃圾,另一方面我们在吃棒冰时往往随便地将包装纸扔在地上。
又比如,有些厂的老板把厂房装饰得美丽豪华,可是背地里却把污水、废水偷偷地源源不断地往河里排放……所以,尽管我们天天在宣传环境意识,可是污染环境,危害生物的现象仍然屡禁不止。
为什么会有这么多矛盾现象呢?我认为,关键在于很多人没有重视环境保护。
埋怨别人污染了环境,恰恰忘记了自己也在污染环境!所以在宣传保护环境时,还要加上“从我做起!”这后半句。
使环保意识真正在我们每个人的头脑里扎下根,使我们的所作所为时刻都在考虑保护环境。
据资料说,“太湖流域是我国经济发达、人口稠密的地区之一,随着经济迅猛发展及人口不断增加,排放的污染物日趋增多。近几年来,太湖水质恶化与富营养化问题已引起了我国的高度重视,投入了大量的财力,设立了无数的研究项目,但是从太湖水质和富营养化的总体变化形势来看,仍未见好转,甚至还在继续恶化,太湖的富营养化问题远没有解决。”
我认为,我们作为二十一世纪的接班人,我们应该一起努力的.保护环境,特别是太湖就在我们身边,对于保护太湖,我们自己应该尽一份责任。我想到的具体做法如下:
1、首先,根据有关资料说,总氮总磷量过多是导致蓝藻爆发的主要原因,我们可以在太湖里种植一些可以吸收氮和磷元素的绿色植物,让它们吸收太湖里面的氮和磷,阻碍蓝藻的生长。
2、其次,我们要控制生活污水的排放,看见身边有乱排污水的就及时向有关管理部门反应,并及时对乱排放污水的人进行劝说,告诉他保护太湖的重要性。因为太湖水一旦被污染,那会影响我们很多人的平时生活用水,就会出现人们争相去买瓶装纯净水和矿泉水的不好现象。
3、此外,我们还要从自我做起,不在太湖里扔垃圾,皮肤说果皮,果核,菜叶,空塑料瓶等,因为这些东西中的氮磷含量特别高,看见别人在太湖里乱扔垃圾,要去及时阻止,并劝说他把垃圾捞起,告诉他这样做对太湖的危害很大,更会给我们自己用水带来麻烦。
4、最后,我们可以组成一个志愿小组,来宣传环境污染对太湖的危害,给大家讲授污染太湖的严重性和保护太湖的重要性,提倡大家一起从我做起,从小事做起,保护太湖,人人有责,我们还可以为保护太湖捐款,少吃一天的零食,用这些钱来为保护太湖出自己的一份力。
现在科技发达了,地球上的资源也应此遭到了严重的破坏。
现在地球上有两大严重的污染:一是大气污染,其二是水污染。
先说说汽车废气污染吧!
由于现在科学发达了,随便在那里都能看见大大小小的汽车,自然而然空中的汽车废气也在横行霸道了。
地面上生长的花草树木由于不被人类珍惜也变得稀少了。
汽车废气没被吸收到的,有的会直接危害人类让人类生病甚至死亡;有的还会升上天空,与什么有毒气体混合(这里面学过,所以情原谅。
然后变成有巨大破坏性二氧化硫,之后二氧化硫慢慢地升上臭氧层,把臭氧层变得非常稀薄,强烈的阳光猛烈的直射到地面上,使地球搞得生灵涂炭,鸡飞狗跳,大海干枯,到处都是干旱,到处都是乞讨的人,大的上一片哭爹喊娘的声音。
还有一大污染就是水污染:我们在小河里,江里,大海里。
都可以看到垃圾的身影,这些垃圾不是天然的,也不是因为河水变质而形成的,是人类随意丢弃的。
也正因为这小小的垃圾才污染了一条河,一条江,甚至大海。
虽然人们修了一些污水处理厂,一些地方的污水被制理了,变得山清水秀,环境也涣然一新了。
但是这还是治标不治本呀!就算现在污水被全部治理了,但是人类还是会旧戏重演的。
有一句是说:“先天下之忧而忧,后天下之乐而乐”可是我们是“先天下之乐而乐,后天下之忧而忧”呀!那些只顾贪图享乐的人啦!快性过来吧!我们身边的环境需要我们来保护!我们的地球妈妈需要我们共同爱戴!
To see a world in a grain of sand,
And a heaven in a wild flower,
Hold infinity in the palm of your hand,
And eternity in an hour.
一沙一世界,
一花一天堂,
手中即无限,
永恒亦短暂。
Expert tips on how to prevent avian influenza H7N9 collated by current argument data dictionary
1.平时加强体育锻炼,多休息,避免过度劳累,不吸烟,勤洗手;注意个人卫生,打喷嚏或咳嗽时掩住口鼻。
1 usually strengthen physical exercise, rest more, avoid excessive overworked, do not smoke, wash their hands; pay attention to personal hygiene, when sneezing or coughing and cover your nose and mouth.
2.保持室内清洁,使用消毒液清洗的地毯,避免使用难以清洗的地毯,保持地面、天花板、家具及墙壁清洁,确保排水道通畅;保持室内空气流通,应每天开窗换气两次,每次至少10分钟,或使用抽气扇保持空气流通;尽量少去 空气不流通的场所。
2 keep the room clean, use disinfectant cleaning carpets, avoid the use of hard to clean the carpet, keep the floor, ceiling, furniture and walls clean, to ensure smooth drainage channel; maintains the indoor air circulation, ventilation windows should be at least two times a day, 10 minutes each time, or use a fan to keep air circulation; as little as possible to airless places.
3.注意饮食卫生,进食禽肉、蛋类要彻底煮熟,加工、保存食物时要注意生、熟分开;养成良好的卫生习惯,搞好厨房卫生,不生食禽肉和内脏。解剖活(死家禽、家畜及其制品后要彻底洗手。
3, pay attention to food hygiene, eating meat, eggs should be thoroughly cooked, processing, preservation of food to the attention of raw, cooked separately; develop good health habits, good kitchen hygiene, do not eat raw poultry meat and offal. Anatomy of living (dead to wash hands thoroughly, livestock and poultry products.
同时,在户外洗手不方便的时候,可以使用免洗洗手液,随身携带,随时随地隔离病菌,呵护您的健康。
At the same time, when the outdoor hand-washing is not convenient, can use hand sanitizer, carry whenever and wherever possible, isolate the pathogen, take care of your health.
4.发现疫情时,应尽量避免与禽类接触;公众特别是儿童应避免密切接触家禽和野禽。
4 found in the epidemic, should avoid contact with poultry; the public especially children should avoid close contact with poultry and wild birds.
5.注意生活用具的消毒处理。禽流感病毒不耐热,100°C下一分钟即可灭活。对干燥、紫外线照射、汞、氯等常用消毒药都很敏感。
5 pay attention to disinfection and living appliances. Avian influenza viruses do not heat, 100 ° C, one minute can be inact
据资料说,“太湖流域是我国经济发达、人口稠密的地区之一,随着经济迅猛发展及人口不断增加,排放的污染物日趋增多。近几年来,太湖水质恶化与富营养化问题已引起了我国的高度重视,投入了大量的财力,设立了无数的研究项目,但是从太湖水质和富营养化的总体变化形势来看,仍未见好转,甚至还在继续恶化,太湖的'富营养化问题远没有解决。”
我认为,我们作为二十一世纪的接班人,我们应该一起努力的保护环境,特别是太湖就在我们身边,对于保护太湖,我们自己应该尽一份责任。我想到的具体做法如下:
1.首先,根据有关资料说,总氮总磷量过多是导致蓝藻爆发的主要原因,我们可以在太湖里种植一些可以吸收氮和磷元素的绿色植物,让它们吸收太湖里面的氮和磷,阻碍蓝藻的生长。
2.其次,我们要控制生活污水的排放,看见身边有乱排污水的就及时向有关管理部门反应,并及时对乱排放污水的人进行劝说,告诉他保护太湖的重要性。因为太湖水一旦被污染,那会影响我们很多人的平时生活用水,就会出现人们争相去买瓶装纯净水和矿泉水的不好现象。
3.此外,我们还要从自我做起,不在太湖里扔垃圾,皮肤说果皮,果核,菜叶,空塑料瓶等,因为这些东西中的氮磷含量特别高,看见别人在太湖里乱扔垃圾,要去及时阻止,并劝说他把垃圾捞起,告诉他这样做对太湖的危害很大,更会给我们自己用水带来麻烦。
4.最后,我们可以组成一个志愿小组,来宣传环境污染对太湖的危害,给大家讲授污染太湖的严重性和保护太湖的重要性,提倡大家一起从我做起,从小事做起,保护太湖,人人有责,我们还可以为保护太湖捐款,少吃一天的零食,用这些钱来为保护太湖出自己的一份力。
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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