资源简介

(共33张PPT)
Looking into nature
5
Unit
Grammar
use object clauses with that, if/ whether correctly;
At the end of the class, you will be able to:
write a short passage about exploring nature using object clauses with that, if/ whether.
understand the use of object clauses with that, if/ whether；
① I need a pen.
② John helped her.
③ Children stopped talking.
④ I do not want to cry.
⑤ He knew (that) he should study hard.
名词
代词
V-ing形式
动词的 to do形式
句子
在主从复合句中充当宾语的句子称为宾语从句。
宾语表示动作行为的对象，常跟在及物动词或介词之后。
试着找出下列句子中的宾语。
Read the sentences from the reading passage and summarise the grammar rules.
P71
5
(a) For hundreds of years, people believed that dinosaurs looked like huge lizards.
(b) They can tell us whether dinosaurs had feathers, but that’s not all.
Now find more sentences with these structures in the reading passage.
主语+谓语动词+由引导词（that ,whether等）引导的宾语从句
宾语从句可由不同引导词引导，结构如下：
1. However, thanks to a piece of amber, scientists now know that this idea is wrong. (P68)
2. They also help us understand that life on earth has always changed. (P69)
3. But the find proves that it did 35 million years ago. (P69)
4. In the future, amber may also help us discover if other species have changed over time.(P69)
5. Research shows that they are a completely new species. (P69)
6. Scientists used to believe that ants came from the northern half of the earth.(P69)
7. Who knows whether this piece of amber will tell us more secrets (P69)
读下列句子。划出句中的宾语从句。
根据引导词的不同，宾语从句可分为以下三种：
1. 由that引导的宾语从句；
2. 由if/whether引导的宾语从句；
3. 由疑问词引导的宾语从句：
what, which, who, whom, whose (疑问代词)
when, where, how, why (疑问副词)
Focus on
用法
Object clauses with that, if or whether
宾语从句
宾语从句
2) I believe that April is the hottest month
in Thailand.
1) I know that the Water Festival is really fun.
主语
谓语
主语+谓语动词+that引导的宾语从句
(一) that引导的宾语从句
1. 结构：
并非所有动词后面都可接that引导的宾语从句。常接that引导的宾语从句的谓语动词有：believe, expect, explain, feel, hear, hope, imagine, prefer, promise, report, say, see, tell, think, understand, warn, wish 等。
(陈述语序)
that无任何词义，只起连接作用，在非正式文体中可以省略
I believe (that) he will not do such a silly thing.
= I don’t believe (that) he will do such a silly thing.
＊think, believe, suppose, guess等动词作主句的谓语，且主句的主语是第一人称 I 或we时，若后面的宾语从句表示否定概念，一般将否定词not转移到主句的谓语中。即“否定转移”。
观察两个句子的区别
that 无任何词义，只起连接作用，常可省略。
我相信他不会做如此愚蠢的事。
1) I’m afraid (that) he can’t come．
2) I’m so pleased that you will come tomorrow.
＊主句为由“连系动词＋形容词”构成的“系表”结构，常接that引导的宾语从句。这类形容词多表示感情，如happy, glad, pleased, sad, sure, afraid等等。
恐怕他不能来了。
我很高兴明天你来。
2. that在宾语从句中的省略与保留
由并列连词连接的两个或多个that引导的宾语从句，只有第一个从句中的that 可以省去，其余并列宾语从句中的that都要保留。
He said (that) the book was very interesting
and that (不省略) all the children liked to read it.
it作形式宾语代替that引导的宾语从句时，that不能省略。
They took it for sure that we would help them.
形式宾语
真正的宾语
当宾语从句的主语是this、that 或者被 this、
that修饰时，that不能省略。
① She said that this book was very useful.
② He told us that that was why he was late.
当that作介词except, in等宾语时不能省略。
These two pens are alike except that they're different colours.
① I wonder ...
② Is the Water Festival really fun
试将下面两句话合并为一句：
宾语从句
谓语动词
I wonder
the Water Festival is really fun.
if/whether
(二) whether/if引导的宾语从句
陈述语序
I want to know whether/if he lives there.
我想知道他是否住在这儿。
Mary asked me whether/if I could help her.
玛丽问我是否能帮助她。
1.当宾语从句表达不确定的概念时，从句要用whether或if 来引导，不能用that；
2.whether和if不能省略。
1) He asks me whether/if Lucy will be
back in two days.
他问我露西是否两天后回来。
2) He asks whether/if we will go fishing
on Sunday.
他问我们是否周日去钓鱼。
whether/if常放在ask，wonder，can (could) you tell me等之后，表达不确定的概念，意为“是否” 。两者常可换用，口语中多用if。
只用 whether 不用 if 的情況
在whether ... or not的固定搭配中；
I can't say whether or not he will come on time.
在介词后，只能用whether；
I'm interested in whether he joins the army.
宾语从句置于句首时，只能用whether；
Whether he will come, I'm not sure.
在动词不定式前只能用whether。
Tomorrow the teacher will tell us whether to have a test.
① I think (that) he'll return in an hour.
② He said (that) he missed us very much.
③ Mary asked me whether/if I could help her.
④ We knew (that) summer is after spring.
宾语从句的时态取决于主句的时态:
1. 主句使用现在时，从句可使用任何时态；
2. 主句使用过去时态，从句使用相关的过去时态。
3. 当宾语从句是客观真理或不可改变的自然现象时，宾语从句须用一般现在时。
(三) 宾语从句的时态
以下部分为课本练习，供老师在对答案时选择使用。
Connect the sentences with that, if or whether.
P71
6
1 Is there life in outer space Scientists aren’t sure.
_____________________________________________
_____________________________________________
2 “I want to be a scientist and study plants,” John told his parents. ______________________________________ _____________________________________________
3 Is Mr Brown interested in insects or birds Emily wants to know.
_____________________________________________
_____________________________________________
Scientists aren’t sure if/whether there is life in outer space.
John told his parents that he wanted to be a scientist and study plants.
Emily wants to know whether Mr Brown is interested in insects or birds.
Complete the messages with that, if or whether.
P71
7
if/whether
that
whether
that
that
if/whether
You are Nature Secret Reporters. Work in pairs. Write a 4-5 sentence report about natural secrets in amber. You should use at least 2 object clauses with that/if/whether.
Steps:
Talk with your partner.
(What secret did amber tell first
What other secrets were found in amber
What do scientists wonder about future amber )
Write your report together(4-5 sentences).
Check your work. (Do you include two object clauses with that/if/whether )
Be a Nature Secret Reporter!
Good news for nature lovers! Today, we’ve learned about the amazing secrets in amber. Scientists have proved that dinosaurs once had feathers—a surprising fact found in Southeast Asian amber. Also, a piece of European amber showed that a flower species once grew there 35 million years ago. These secrets help us understand nature better! We wonder whether more unknown species will be discovered in amber in the future.
Work in pairs. Look at the notice and write a short passage about exploring nature. Use the words and expressions from the reading passage and the Useful expressions to help you.
P72
8
Useful expressions
For hundreds of years, people believed that...
... made an amazing discovery.
By..., ... found / realised / saw that...
It proves that...
It teaches us that...
Research shows that...
For hundreds of years, people believed that all ancient ants looked like those of today. However, a team of scientists made an amazing discovery. They found a new kind of ant inside a piece of amber.
By studying the amber carefully, the scientists saw that this ancient ant had much longer legs than modern ants. Research shows that these long legs helped the ant climb a type of flower. But those flowers no longer exists in our world.
It proves that animals can change their bodies to live in different environments over millions of years. It teaches us that even a small, old thing like a piece of amber can be like a window, showing us secrets about life long ago.
直击中考
Ⅰ. 单项选择。
1. While he was climbing, he kept looking around to see ______ anyone saw him.
A.which B. when C. if D. what
【2025 天津市完形填空】
2. Finally, a tool was invented by him. It could show results fast, so people would know _____ the food was safe.
A.what B. whether C.which
【2025 重庆市语法选择】
直击中考
1. Later, I found that Traditional Chinese medicine could be of great help to some illnesses lasting for a long time, such as sleeping problems or physical pains. (2024安徽省)
Ⅱ. 标出下列句子的宾语从句，并将从句所在的句子翻译成汉语。
后来我发现，传统中医对一些长期困扰的疾病大有帮助，比如睡眠障碍或身体疼痛。
2. In recent years, scientists have done research about the feelings of cows, frogs and pandas. A new study adds chickens to the list. It says that humans can tell whether a chicken is happy or sad by listening to its calls. (2024广东省)
它指出人类能通过辨识鸡鸣声判断其快乐或悲伤。
〔
〕
1. 结构:主语+谓语动词+that引导的宾语从句
2. 宾语从句中that的省略与保留：
1) 如果谓语动词后跟有两个或更多个并列的宾语从
句，第二个及以后的that都不可以省略；
2) ...
whether/if常放在ask，wonder，can (could) you tell me等之后，表达不确定的概念，意为“是否” 。两者常可换用，口语中多用 if。
whether/if 引导的宾语从句
that 引导的宾语从句
宾语从句要用陈述语序。
宾语从句的时态
注: 另附word文档，点击此处链接
that if whether
I. 选词填空。
1. The report says ______ this amber formed in a warm forest long ago.
2. We don’t know _________ the old ant could climb trees or not.
3. They are talking about __________ they can find more amber near the hill.
4. I believe ______ our team will win the game.
5. She wonders _________ the dinosaur feather in the amber is kept well.
that
whether
whether
that
if/whether
Ⅱ. 单项选择。
( )1. I’m sure ______ we can do well in the English speaking competition.
A. that B. how C. if D. whether
( )2. Kelly hopes ______ she will make new friends in the club.
A. whether B. if C. what D. /
( )3. I don’t know ________ or not he will come to the party.
A. if B. whether C. that D. what
( )4. The doctor told the students ______ they’d better do exercise during
the break.
A. whether B. if C. that D. what
( )5. After training for a long time, Lily thinks ______ she is good at playing tennis and ______ she is able to teach her sister to play tennis.
A. that; that B. that; / C. /; how D. that; what
A
D
C
A
B
Scientists are excited about the latest amber discovery. They believe _________his piece of amber holds a very old spider inside. No one is sure ___________ the spider is a new species. Some experts question _________ the spider lived in trees or on the ground. The study shows _______ the spider had some special parts (to make silk). Now, there is a debate about __________ this changes our understanding of early spider life. We all wonder __________ more such amazing finds will be made this year.
Ⅲ. 语篇填空：用 that/if/whether 补全短文。
that
if/whether
whether
that
whether
if/whether
1. Can you master the structure of object clauses with that, if or whether
2. Can you use object clauses with that, if or whether correctly
Must do:
1. Polish your passage about exploring nature in part 8 on page 72.
2. Preview Developing ideas on pages 73-75.
Choose to do:
Review the usage of object clauses with that, if or whether, then make a mind map.

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