英语作文没有划线怎么处理【一】
1.要指出句子运用的说明方法有哪些（不要遗漏）？
2.要指出运用这种说明方法说明的核心内容是什么？
3.要指出运用这种说明方法带来怎样的效果？
例如：那么，死海海水的浮力为什么这样大呢？因为海水的咸度很高。据统计，死海水里含有多种矿物质：135.46亿吨氯化钠（食盐）；有63.7亿吨氯化钙；有20亿吨氯化钾；另外还有溴、锶等。把各种盐类加在一起，占死海全部海水的23％～25％。这样，就使海水的密度大于人体的密度，无怪乎人一到海里就自然漂起来，沉不下去。
1.运用的说明方法有：引资料、分类别、列数字；
2.主要说明了：死海的咸度高、浮力大。
3.效果
（1）引资料：突出材料的科学性、准确性，增强说服力；
（2）分类别：将死海中的矿物质分成若干种类一一说明，条理清晰，层次井然；
（3）列数字：准确具体。
整体答案就是：这句话运用引资料、分类别、列数字三种说明方法，说明了死海的咸度高、浮力大这一突出特点，说明过程引用材料、数据科学、准确、具体，增强了说服力，同时把复杂的内容说明得条理清晰，层次井然。
英语作文没有划线怎么处理【二】
1.指出其在内容表达上的作用、效果；
2.指出其在结构上的作用。
例如：分析下面语段中划线句子的作用
抵御沙丘进攻的方法是植树种草。我国沙荒地区，有一部分沙丘已经长了草皮和灌木，不再转移阵地了。这种固定的沙丘，只要能妥善保护草皮和灌木，防止过度砍伐和任意放牧，就可以固定下来。根据近年治沙的，陕北榆林、内蒙古磴口、甘肃民勤地区的流动沙丘，表面干沙层的厚度一般不超过10厘米。10 厘米以下，水分含量逐渐增大，到40厘米的深处，水分含量达到2%以上，这就是湿沙层了。湿沙层的水分足够供应固定沙丘的植物的需要。所以在流动沙丘上植树种草，是可以成活的。林木和草类成长以后，沙丘就可以固定下来了。
1.对应的答案是：概括说明植树种草是抵御沙丘进攻的方法，语言简洁明快；
2.对应的答案是：总领全段。
将二者合起来，就是划线的中心句的作用（答案分为在内容表达和结构两个方面的作用）：概括说明植树种草是抵御沙丘进攻的'方法，语言简洁明快；在结构上总领全段。
英语作文没有划线怎么处理【三】
Nowadays, advertisements can be found everywhere in big cities. They shout at us from the television screen and radio loudspeakers, wave to us from every page of the newspaper, signal to us from the roadside billboards all day and flash messages to us in colored lights all night.
Faced with a flood of advertisement, some people wonder whether it is necessary to have such huge sums spent on advertising. They often cite in illustration of it the attractive, but false and deceptive advertisements to which many consumers fall victim. Why don't we stop advertising and use the money to reduce the price of goods? It sounds like a good idea, but they fail to notice the contribution advertising makes to our society. Because the production of a better product to compete for customers' money is the goal of advertisers, customers are thus given a chance to compare their products and get the best and cheapest one. Besides, as the advertisement can provide people with a lot of immediate and detailed information as to the availability of a certain product, or a service or a job, it makes life much more convenient. And another thing we mustn't forget: the fact that we pay so little for our daily newspapers and TV programs is due entirely to the money spent by advertisers.
Advertising performs such a useful service to our society that we can't imagine what would happen if there were no advertisements. (198 words
