千丈巖瀑布作文450字

　　“麻雀雖小,五臟俱全”。一個段落就像一篇文章一樣,也有主題句，擴(kuò)展句和結(jié)尾句。主題句是段落的核心,但要記住,一個段落只有一個中心,這個中心要清晰地表達(dá)出來?擴(kuò)展句圍繞主題句進(jìn)行敘述，說明或論述，方法各異。結(jié)尾句對本段的內(nèi)容進(jìn)行總結(jié)，和主題句相呼應(yīng),引發(fā)讀者對段落的進(jìn)一步認(rèn)識。結(jié)尾句可有可無，視內(nèi)容而定。

　　段落的擴(kuò)展有多種方式，常見的有列舉?舉例?遞進(jìn)?因果?比較和對照，寫作時往往是幾種方法結(jié)合使用�，F(xiàn)分別舉例說明:

　　1.列舉

　　常見的關(guān)聯(lián)詞有: first, second, finally; for one thing, for another thing; on one hand, on the other hand等,如:

　　Effective measures can be taken to protect our natural resources. On one hand, we should carry out campaigns to make people aware of the urgency of environmental protection; on the other hand, strict laws should be made to put the commercial fishing under control.

　　2.舉例

　　常見的關(guān)聯(lián)詞有: for example, for instance; one example is… , another example is…; such as 等,如:

　　Love means more to those who need help. For example, in 1998, southern China witnessed an unprecedented flood. Many people became homeless, and they were in bad need of clothing and food for the coming winter. At this moment, people all over China offered their warm hands. With their love, they help the victims of the flood live through the winter.

　　3.遞進(jìn)

　　常見的關(guān)聯(lián)詞有:furthermore, moreover, besides, in addition, what's more等,如:

　　Today more and more advertisements are seen on the TV screen. There are two reasons for this phenomenon. To begin with, they can meet the needs of manufactures. With the development of market economy, manufactures have to be more and more competitive, and advertising is one of the best ways to strengthen their competitive capacity. What's more, advertisements are also necessary to consumers. Advertisements can help the consumers keep informed about different products and offer them different alternatives when they just stay at home.

　　4.因果

　　常見的關(guān)聯(lián)詞有:because, since, for, owing to, due to, as a result, because of, so, there fore, thus, consequently, accordingly等,如: .

　　At present, fake products are very common in our markets. The most obvious reason is that some dishonest manufactures want to make easy money, and selling fake products is their first choice. In addition, the government hasn't passed strict laws to punish these dishonest manufacturers. As a result, fake products are very popular in the market.

　　5.比較和對比

　　常見的關(guān)聯(lián)詞有:on the contrary, in contrast, in comparison, on the other hand, likewise, while, whereas, yet, but, however等,如:

　　The entry into WTO has brought China many opportunities. For example, it will introduce into China more advanced technology, which is bound to stimulate the development our country. However, each coin has its two sides. After China became a member of WTO, it has also faced many challenges. A case in point is that some heavy industries are facing bankruptcy because of the pressure from the foreign rivals.

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