人教新目标 (Go for it) 版八年级下册Section B集体备课课件ppt

这是一份人教新目标 (Go for it) 版八年级下册Section B集体备课课件ppt，共17页。PPT课件主要包含了分数的英语表示和用法，eg 13，one，third，two，three，fourth，seven，eighth， a half等内容，欢迎下载使用。
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。
1/2 ne secnd
1/4 ne furth
a / ne quarter
3/4 three furths
three quarters
二、分数的用法：分数可以修饰名词， “分数+f+名词复数”作主语时，谓语动词用复数形式。 “分数+f+名词单数/不可数名词”作主语时，谓语动词用单数形式。
This is a big class, and tw thirds f the students are girls.
2. A half f the bys in ur class play basketball every day.
3.Three furths f the bag is wet.
4. Abut ne tenth f the water in ur schl is wasted.
Chse the right answers
( ) 1. In China, abut ___ f peple ___ in the cuntry. A. three fifth ; live B. third fifth ; lives C. three fifths ; live D. three fifths; lives
( ) 2. Nw ____f business letters ____ written in English. A. tw third ; are B. tw thirds ; are C. tw three ; is D. secnd three; is
( )3. ___f the milk ___ water. A. One secnd; is B. One tw; are C. secnd ne; is D. Third ne; are
have gne t, have been t, have been in 的区别
They have been in Tibet．（1） They have been t Tibet．（2） They have gne t Tibet．（3）
been是be的过去分词gne是g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
表示某人曾去过某地（现在已经回来了）He has been t America twice. 他去过美国两次了I have ever been t the Great Wall. 我曾经去过长城
have\has been t
have\has been t 标志性词一、经常和表示次数的词连用，如nce,twice times等，表示“去过某地几次”My father has been t Beijing twice. 我父亲去过北京两次二、可和just,never,ever,等连用。They have just been t Beijing他们刚刚去过北京I have never been t the Great Wall.我从未去过长城
have\has gne t
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 gne t England. 他去英国了一般不用第一和第二人称做主语
have\has been in
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 fr nearly tw weeks..（此时仍在北京）她在北京已经两周了Hw lng have yu been in the factry?你在工厂多长时间了？
注意遇到这四个地点副词要去掉t,这四个地点副词是here, there ,hme, abrdMary is nt here.She has gne hme玛丽不在这里，她回家了I have been abrad twice 我去过两次国外了Have yu ever been there你去过哪里吗？
课堂练习用 have/has been t have/has gne t have\has been in填空，完成下列句子。1. —Hw d yu like Qingda?—Very much. I Qingda twice and it’s a beautiful city.2. —Where’s yur father,Rita?—He  Brwn   Shanghai fr three days. 
have been t
has been in
have\has been +地点 曾去过某地，已经回来了
have\has gne t+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 gne t+地点have\has been in+地点