外研版必修一Module5ALessoninaLab_课件

使用形容词、副词的比较级时要注意的几个问题：
⑴在as…as 之间只能使用原级形容词（副词）。例如： 误：I have as less money as you do. 正：I have as little money as you do.
⑵切忌采用双重比较 比较级前可以用表示程度的修饰语来表示强调或程度， 但不可用more加比较级情势。例如： 误：His health is more worse than before. 正：His health is much worse than before.
For your friends are my friends and my friends
are your friends
比较级的用法 : 1.双方比较，表示一方超过另一方时，用 “比较级 +than”的结构表示。例如：
This book is better than that one. 这本书比那本书好。
The old woman is twenty times as old as her granddaughter. Or we can say: The old woman is twenty times older than her granddaughter. The old woman is about twenty times the age of her granddaughter.
He is five years older than I.
他比我大五岁。
I got up an hour earlier than the others. 我比其他人早起一个小时。
Look at the picture, if the baby is 3 years old, while her grandmother is 60 years old. We can say:
This problem is a bit more difficult than that one. 这个问题比那个要难点。
d) much, a lot, greatly, (by) far, rather, a good (great) deal等加比较级, 表示“……得多”。例如： The people here are a great deal richer now than before. 现在这儿的人比以前富裕多了。
Mongol is about twice the height of the superman.
Mongol is about twice taller than the superman.
At a rough estimate（估计），Nigeria is ＿＿Great Britain. A. three times the size as B. three times as the size of C. three times the size of D. the size three times of 【解析】选C。本句考查倍数的表达。句意：据粗略估 计，尼日利亚面积是英国面积的三倍。根据倍数表达 的三种表达情势可知C 为正确答案。
For your friends are my friends and my friends
are your friends
T_h__e m__o_r_e__ we get together T_h_e_ h_a_p__p_ie_r_ we’ll be T_h_e_m__o_r_e_ we get together , together , together Th__e m__o_r_e_ we get together T_h_e_h_a_p_p_i_e_r_ we’ll be
Are you feeling any better? 你感觉好些了吗？
b) no/not (any)加比较级, 表否定程度，意为“并不”。 例如：Some grow no higher than your ankles. 有一些长得并不比你的脚踝高。
c) a bit, a little, slightly加比较级, 表示“稍微，一点 （些）”。例如： May I stay here a little longer? 我可以在这里多待一段时间吗？
【点津】比较的另一方如果是不定代词anyone, anything, 前面不能加other, 而要在其后加else。但 是，若比较的双方不属于同一范围，句中则不加 other。例如： She studies harder than anyone else in her class. 她比班里其他人学习都刻苦。
The little girl becomes more and more beautiful. 这个小女孩变得越来越漂亮。
“比较”出来的英语
A “比较”出来的英语 A friend is easier lost than found. 朋友易失不易得。
A “比较”出来的英语 Doing is better than saying. 会说不如会做。
2. 比较级+and+比较级
越来越……
the+比较级，the+比较级 越……越……
I. Multiple choice 1.Many people have donated that type of blood; however,the blood bank needs_______.
【2012·北京高考】 A. some B. less C. much D. more 【解析】选D。句意：许多人已经捐献了那种血型的 血液，然而，血库还需要更多那种血液。更多，用 more。
4.It’ll be a lot heavier than magnesium. 5.Is it any heavier? 6.We need a piece which is (very) much bigger than that.
比较级的修饰语： 在比较级的前面可以加上如下一些表示程度的状 语，但要注意其含义的差别。 a) any加比较级, 表示疑问程度，意为“……一些”， “……一点”。例如：
Conclusion:
2.表示形一容方词不比较及等另级一的方时，用“less+原级adj./adv. + than”用的法结有构哪表些示？。例如： This room is less beautiful than that one. 这个房间不如那个房间漂亮。
3.表示一个方面随另一个方面的程度而变化时，用 “the +比较级（+主语+谓语），the +比较级（+主 语+谓语）”的结构。 例如： The harder he works, the happier he feels. 他工作越努力，他觉得越快乐。
【点津】 by far通常用于强调最高级。用于比较级时，一般放 在比较级的后面，如在前面，应在二者中间加“the”。 例如：
He is taller by far than his brother./ He is by far the taller of the two brothers. 他比他的弟弟高得多。
A Lesson in a Lab
Grammar
1. Learn to use comparative degrees properly. 2. Know the three different expressions of multiples. 3. Develop the habit of cooperation by discussion in groups.
The harder you study, the more knowledge you XXX get.
你学习越刻苦，你学到的知识就越多。
4.表示自身程度的改变“越来越……”时，用“比较 级+and+比较级”结构表示。例如： The weather is getting colder and colder. 天气变得越来越冷。
She runs faster than any boy in her class. 她比班里任何一个男生跑得都快。
⑷ 表示“两者中较……”时，比较级前要加the。例如： The older of the two noblemen took a light and led me into a back room. (5) 连词than后使用代词 , 主格和宾格有时意义不同。 例如： ① I know you better than he. 我比他更了解你。 ② I know you better than him. 我对你的了解比对他的了解更透彻些。
Sentence Dragon Rules:
1.Talk anything about your classmate. 2.The student who was talked about just now must go on talking. e the comparative degrees.
Please fill in the blanks with the missing lyrics
when listening to the music. T_h_e _m_o_r_e_ we get together , together , together
_T_h_e_ _m_o_r_e_ we get together _T_h_e_h_a_p_p_i_e_r_ we’ll be
⑶应避免自我比较 使用比较级时，进行比较的双方必须是互相分离、 互不包含的独立概念或事物，否则比较就不合逻 辑。例如： 误：Bamboo probably has more uses than any plant in the world.
正：Bamboo probably has more uses than any other plant in the world.
知足常乐。
Underline the comparative expressions and circle the adverbs used to give more information about the comparative expressions. e a bit closer. 2.We need rather more than that. 3.It weighs a little more than before.
1. 这条河是那条河的三倍长。(倍数的表达）
(1)This river is three times as long as that one.
(2)This river is three times longer than that one.
(3)This river is three times the length of that one.
e) even, still加比较级, 表示强调，意为“甚至更/还要 ……”。例如： He gets even stronger. 他变得甚至更加强壮。
Jack is tall, but Tom is still taller. 杰克很高，但汤姆更高。 f) “数词+名词+比较级”表示确定的程度。例如：
A “比较”出来的英语 Two heads are better than one. 二人智慧胜一人。
A “比较”出来的英语 Better to do well than to say well.
说得好不如做得好。
就你不知道。
A “比较”出来的英语 Enough is as good as a feast.
• 总结：倍数的表达 • 1.A+be+倍数+as+形容词原级+as+B • 2.A+be+倍数+形容词比较级+than+B • 3.A+be+倍数+the+性质名词+of+B
性质名词：size，weight，width, depth，length 等

1.26m
2.36m
【即学即练】
Mongol is about twice as tall as the superman.