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1、Welcome1.倍数表达法倍数表达法（1）倍数）倍数+as+原级原级+as+被比对象被比对象Examples This tree is three times as tall as that one. 这棵树是那棵树的三倍高。 His father is twice as old as he. 他父亲的年纪有他两倍大。 2.（2）倍数）倍数+比较级比较级+than+被比对象被比对象ExamplesThe Yangtze River is almost twice longer than the Pearl River. 长江差不多比珠江长两倍。 The dictionary is exact
2、ly five times more expensive than that one. 这本字典比那本恰好贵5倍。 3.（3）倍数）倍数+the+表数量大小的名词表数量大小的名词+of+被比对象被比对象或或that/thoseofExamplesThe newly broadened square is four times the size of the previous one.新扩建的广场是未扩建时的四倍大。The rooms in this hotel are six times those of the small inn.这间酒店的房间是小客栈的六倍多。4.副词的位置副词的位置We
3、_our breakfast when an old man came to the door. A.just have had B.have just had C.just had had D.had just had 频率副词 always, often, frequently, seldom, never,ever, usually, rarely, occasionally, no sooner, hardly, scarcely 等以及 just, shortly 等其他副词必须放在助动词、情态动词或be动词与实义动词之间。在省略结构中，这些副词必须放在助动词，情态动词或be动词之间
4、。5.程度副词的位置程度副词的位置How I wish John recognized the fact that he _in the wrong. A.is always nearly B.always is nearly C.is nearly always D.nearly is always 程度副词的位置通常放在所修饰的词前面,如 very, much, almost, hardly, nearly，awfully, fairly, rather 等。但enough 必须放在所修饰词的后面。6.频率副词的位置频率副词的位置San Francisco is usually cool
5、in summer, but Los Angeles_. A.is rarely B.hardly is C.rarely is D.is scarcely 频率副词如 always, usually, never, ever, just, shortly, seldom, hardly, scarcely, no sooner, rarely, occasionally 常放在助动词、情态动词、或 be 动词后 或实义动词之前，但在省略结构中，必须置于助动词，情 态动词或 be 动词之前。7.评注性副词的位置评注性副词的位置Not_, the process of choosing names varies widely from culture to culture. A.obviously B.particularly C.surprisingly D.normally对全句进行修饰的评注性副词如actually, fortunately, surely, certainly, briefly通常放在句首，并用逗号隔开。8.Thank You !9.
