内容正文:
八年级(下) Units 9-10
1.现在完成时
2.have been to, have been in, have gone to的区别
3.延续性动词与非延续性动词
4.for, since的用法
5.分数的表达
考点 1 have been to, have gone to, have been in辨析
have/has been to+地名 表示某人曾经到过某地,现在已经回来了,常与ever, never等连用。
have/has gone to+地名 表示某人到某地去了,此人现在已不在说话地点。
have/has been in+地点 表示某人居住在某地,常与一段时间连用。
e.g.I have ever been to America twice.我去过美国两次。
You can’t see her because she has gone to Hainan on business.你见不到她, 因为她去海南出差了。
I have been in this city for about ten years.我已经在这个城市生活了大约十年。
注意:have been to, have gone to和have been in/at后接表示地点的副词there, here, home等时, 介词to, in或at常省略。
You have never been there before, have you? 你以前从没去过那儿,是吗?
( A )1.—Frank, where is your brother?
—He isn’t at home now.He Shanghai.
A.has gone to B.has been to
C.goes to D.has been in
( C )2.—Emma, I haven’t seen your mother for a long time.
—She Wuhan on business for three months.
A.went to B.has gone to
C.has been in D.has been to
A
C
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考点 2 分数的表达法
在表达英语的分数时, 要注意分子用基数词,分母用序数词, 当分子大于1的时候,分母要用复数形式。如:a/one sixth六分之一; five sevenths七分之五。
(1)quarter可表示1/4。如:a quarter四分之一; three quarters四分之三。
(2)由“分数(或百分数)+ of + 名词”构成的名词词组作主语时, 其后的谓语动词形式由词组中的名词是否可数而定。如:
Two thirds of the water has been used for farming.三分之二的水已经被用于灌溉农田了。
Over sixty percent of the doctors were women.超过百分之六十的医生是女性。
( B )1.There’re many students in our school. of them girls.
A.One third; is B.Two thirds; are
C.One thirds; are D.Two third; is
( D )2. of the land covered with trees and grass.
A.Fifth two; is B.Two fifth; are
C.Two fifths; are D.Two fifths; is
B
D
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考点 3 for与since辨析
for 作介词,后接“时间段”,表示持续一段时间。
since 作介词,后接“时间点”;作连词,引导时间状语从句,表示“自从……起”。
e.g.—How long have you had this book? 这本书你买多久了?
— For a week./ Since a week ago.买一周了。
He has taught here since he came to China.自从他来到中国就在这儿教书。
( B )1.—Have you been in Dali very long?
—Yeah. my husband came here to work.
A.For B.Since C.When D.As
B
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( A )2.— ?
—Since two years ago.
A.How l