【正文】
to_______(介紹某事物對多數(shù)人的重要意義 ). _______is really_______(該事物的優(yōu)勢或顯著特點 ). With the functions of_______, it enables us to______(該事物的作用 ). It can even________(進一步說明該事物的作用 ). Just imagine, all this can be done with________(說明事物的重要性 ). A convenient tool can certainly________, but it does not always help_______(承上啟下,介紹事物的另一方面 ). Too much________(該事物的負面影響一 ). Too many________ (該事物的負面影響二 ). Relying too much on______makes ______(總結說明過分使用該事物給我們帶來的負面影響 ). 2.寫作說明文的必備句型 (1)It plays an increasingly important role/part in life. (2)It is of great benefit to us. (3)It has more disadvantages than advantages. (4)Some changes have taken place in past years. (5)This is a phenomenon that many people are interested in. (6)From what has been mentioned above, we can e to a conclusion that... (7)Last but not least, more and more people prefer the modern life. (8)We have good reasons to believe that... (9)However, everything divides into two./ Of course,every coin has two sides. (10)Therefore, we must take some effective measures to solve it. 3.寫作說明文常用的關聯(lián)詞或短語: while, however, but, in spite of, even so,though/although, therefore, as a result, as a consequence, what39。 解題思路 分析句子結構可知, it用作形式主語,后面的“________the problem itself is”是真正的主語,即主語從句,該從句缺少表語。題目所給的四個選項都可以引導名詞性從句。t know what he 。分析句子結構可知 have already known后為賓語從句。 解題思路 分析句子結構可知,本題考查主語從句引導詞,該引導詞應在從句中作 offer的賓語。 The color of the flower is different from what (= the color that) it was in the (現(xiàn)在的 )顏色與它早上的顏色不同。 知識拓展 what引導名詞性從句,可以表示相當于 “名詞 /代詞+關系代詞引導的定語從句”結構的意思, 這種特殊用法在語法上被稱作 “關系代詞型的 what”,既可以指人,也可以指物。句意:村民們已經(jīng)知道我們要做的是重建大橋。ll do is to rebuild the bridge. (2020句意:讓人們明白一項新發(fā)明對人類生活有什么用途并不總是容易的。 2. It is not always easy for the public to see________use a new invention can be of to human life.(2020下面結合高考試題看一下 what引導名詞性從句時的使用和考查特點。s will be much more smarter, and prices will be more cell phones will be built into our body and phone calls could be made simply by speaking. 【 亮點展示 】 1.本文首先說明了手機在人們的日常生活中起著重要的作用,然后介紹了手機的一些特有的重要功能,最后對手機的未來發(fā)展進行了概括和預測。根據(jù)寫作的目的和要求,抓住要說明事物的主要特點進行說明,反映事物本身主要的用途和特征等; (2)運用合理的說明順序。 本周你們欄目的推