Unit 9 Have you ever been to a museum? Section B 分数及have的特殊用法 课件(共17张PPT)

(共17张PPT)
Unit 9 Have you ever been to a museum
（1）分数的英语表示和用法
（2）have gone to, have been to, have been in
的区别
人教版英语八级下册
分数的英语表示和用法
一、 分数的表示
分数表示的口诀
分子在前，分母在后，
分子用基数词, 分母用序数词,
分子大于一, 分母加+s。
e.g. 1/3
one
third
2/3
two
third
3/4
three
fourth
7/8
seven
eighth
s
s
s
分数表示的特殊情况
1/2 one second
a half
1/4 one fourth
a / one quarter
3/4 three fourths
three quarters
二、分数的用法：分数可以修饰名词，
“分数+of+名词复数”作主语时，谓语动词用复数形式。
“分数+of+名词单数/不可数名词”作主语时，谓语动词用单数形式。
e.g.
1. This is a big class, and two thirds of the students are girls.
2. A half of the boys in our class play basketball every day.
3.Three fourths of the bag is wet.
4. About one tenth of the water in our school is wasted.
Choose the right answers
( ) 1. In China, about ___ of people ___ in the country.
A. three fifth ; live B. third fifth ; lives
C. three fifths ; live D. three fifths; lives
( ) 2. Now ____of business letters ____ written in English.
A. two third ; are B. two thirds ; are
C. two three ; is D. second three; is
( )3. ___of the milk ___ water.
A. One second; is B. One two; are
C. second one; is D. Third one; are
C
B
A
have gone to, have been to,
have been in 的区别
They have been in Tibet．（1）
They have been to Tibet．（2）
They have gone to Tibet．（3）
been是be的过去分词
gone是go的过去分词
他们都表示去某个地方。都是现在完成时表明动作已经发生，但含义不同
区别
A
B
表示某人曾去过某地（现在已经回来了）
He has been to America twice. 他去过美国两次了
I have ever been to the Great Wall. 我曾经去过长城
have\has been to
标志性词
难点讲解
have\has been to 标志性词
一、经常和表示次数的词连用，如once,twice times等，表示“去过某地几次”
My father has been to Beijing twice.
我父亲去过北京两次
二、可和just,never,ever,等连用。
They have just been to Beijing他们刚刚去过北京
I have never been to the Great Wall.我从未去过长城
have\has gone to
A
B
表示某人在去某地的途中或到了某地（现在还没有回来双方说话时第三人不在现场）
——Where is Jim Jam去了哪里？
——He has gone to England. 他去英国了
一般不用第一和第二人称做主语
have\has been in
A
B
表示在某地待了多久，强调从过去到现在一直待在某地
She has been in Beijing for nearly two weeks..（此时仍在北京）
她在北京已经两周了
How long have you been in the factory
你在工厂多长时间了？
注意
遇到这四个地点副词要去掉to,这四个地点副词是here, there ,home, abord
Mary is not here.She has gone home
玛丽不在这里，她回家了
I have been abroad twice
我去过两次国外了
Have you ever been there
你去过哪里吗？
课堂练习
用 have/has been to have/has gone to have\has been in填空，完成下列句子。
1. —How do you like Qingdao
—Very much. I Qingdao twice and it’s a beautiful city.
2. —Where’s your father,Rita
—He India.
3.-Mr. Brown Shanghai for three days.
have been to
has gone to
has been in
summary
have\has been +地点
曾去过某地，已经回来了
have\has gone to+地点
到某地去了人不在说话现场
have\has been in+地点
在某地待了多久，强调从过去到现在一直待在某地
板书设计
have\has been +地点
have\has gone to+地点
have\has been in+地点
Thank you