人教新目标版九年级上册 单元语法精讲与精练Unit 2 I think that mooncakes are delicious!课件(共10张PPT)

(共10张PPT)
单元语法精讲与精练
Unit 2 I think that mooncakes are delicious!
由that，if或whether引导的宾语从句
1.宾语从句的定义
当用一个句子充当宾语时，我们把这个句子叫做宾语从句。
2.宾语从句的引导词
(1)如果宾语从句是由陈述句转变而来，其引导词用that。that本身无意义，可省略。
eg：They are good doctors. He tells us.→He tells us (that)they are good doctors.他告诉我们他们是好医生。
语法精讲
宾语从句（一）
(2)如果宾语从句是由一般疑问句转变而来,其引导词要用if/whether,意为“是否”。
eg：Mr. Chen asks,“ Are you all here ” → Mr. Chen asks if/whether we are all here.
陈老师问我们是否都到了。
【口诀】
陈述that来引导，有时可以省略掉。 一般问句表“是否”，if或whether来引导。
语法精讲
3.宾语从句的语序
宾语从句无论是由一般疑问句转变而来，还是由特殊疑问句转变而来，在转变为宾语从句后,都要用陈述句语序。
eg：Does Jim’s father work here Do you know →Do you know if Jim’s father works here
你知道吉姆的父亲是在这里工作吗？
【口诀】
无论宾从什么句，语序都用陈述句。
【注意】当与or not连用时，只能用whether。
语法精讲
4.宾语从句的时态
(1)如果主句是一般现在时或一般将来时,从句的时态可根据具体情况来确定。
eg：I hear that he will be back in a day.
我听说一天后他将回来。
I think she finished her work an hour ago.
我认为她一小时前已完成工作。
语法精讲
(2)如果主句的时态是一般过去时，从句的时态则相应地使用过去的某种时态。
eg:He said that he didn’t find your lost pen.
他说没找到你丢失的钢笔。
The policeman asked him if he was doing his homework at midnight yesterday.
警察问他昨天半夜是不是在做作业。
语法精讲
(3)如果宾语从句所叙述的是客观真理、自然现象、名言警句或谚语等，不管主句是什么时态，从句都用一般现在时态。
eg:Our teacher told us that the earth goes around the sun.老师告诉我们地球绕太阳转。
My father said(that) knowledge is power.
父亲说知识就是力量。
【口诀】
“主”为“现、将”，“从”不限；“主过”“从 过”对应变。从句表述是真理，一般现在代过去。
语法精讲
1.Please tell me I can learn Japanese well.
2.The teacher didn’t know Li Fang was ill yesterday.
3.I want to know there is a book on the teacher’s desk.
4.I ask tomorrow is Sunday or not.
5.You know he will tell you.
Ⅰ.根据句意，用that,if,whether填空。
if /whether
语法精练
that
if /whether
whether
that
（ ）6.She said she sorry for being late.
A.is B.was C.are D.were
（ ）7.My father told me the earth round.
A.is B.was C.will be D.would be
（ ）8.The teacher asked Lucy .
A.where does she come from B.what did she like best
C.if she could speak Chinese D.when was she born
（ ）9.He said he had been to Shanghai before.
A.when B.how C.if D.that
（ ）10.Could you tell me the nearest hospital is
A.what B.how C.whether D.where
Ⅱ.单项选择。
B
强化训练
A
C
D
D
Thank you!