外研版(2019)选择性必修第一册Unit 5 Revealing nature Developing ideas 语言点课件(共21张)

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名称 外研版(2019)选择性必修第一册Unit 5 Revealing nature Developing ideas 语言点课件(共21张)
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版本资源 外研版(2019)
科目 英语
更新时间 2024-10-11 15:25:34

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(共21张PPT)
Unit 5 Developing ideas
The Secret Language of Plants
植物密语
语言点课件
重点短语
1.after all          
2.as well as          
3.share...with...          
4.communicate with          
5.drive away          
6.amounts of          
7.把……连接到……          
8.呼救          
9.制造噪音          
10.在某些方面          
11.被描述为          
12.并排;肩并肩          
毕竟 
和;还有 
与……分享……
与……交流 
驱使……离开 
大量,许多 
link...to... 
a call for help 
make noises 
in some ways 
be described as 
side by side
重点句式
1.Alexander the Great and Marco Polo were said to have visited such a tree in India.
2.It has been known for some time that plants use chemicals to communicate with each other.
其中的观点大多数为当今的科学界普遍接受。在该书中,达尔文首次提出天择演化的观点,解释生物为什么能适应环境,同时也提出了性择理论。他使用自己在19世纪30年代环球科学考察中积累的资料,并使用农作物的人择作为例子说明生物的演化。
1. as well as
2. to have visited such a tree
3. It has been known for some time that...
4. tiny amounts of
5. drive away
6. link
7. similar to
8. benefit
词、短语及句型
1
as well as 为介词短语,意为“和,也,以及”。
【词汇拓展】
besides/in addition to除……之外(还)
as well as可以用于同级比较,意为“和……一样好”。
as well as作介词相当于besides,意思为“除……之外,还有”,后面通常接名词或动词-ing形式,尤其是位于句首时。
as well是副词短语,其意思为“也”,相当于too,它一般放在句末,有时和连词and或but搭配使用。
As well as eating five apples,they drank seven bottles of wine.
除了吃了五个苹果之外,他们还喝了七瓶葡萄酒。
He speaks Chinese as well as Jane.
他中文说得和简一样好。
It is in his best interests as well as yours.
这符合他的最大利益,同时也符合你的利益。
They visited some factories,hospitals as well as the school.
他们参观了这所学校,还参观了一些工厂和医院。
2
I am sorry to have kept you waiting.
我很抱歉让你久等了。
They pretended to have finished the job.
他们假装已经做完了工作。
He seems to have bought the new book.
=It seems that he has bought the new book.
看起来他已经买了新书了。
to have visited such a tree是不定式的完成式。如果不定式所表示的动作发生在谓语动词之前,就要用完成式。
2
【句式拓展】
(1)不定式的一般式所表示的动作通常与谓语的动作或状态同时或几乎同时发生,或是在它之后发生。
(2)如果谓语动词的动作(情况)发生时,不定式表示的动作正在进行,这时,不定式就要用进行式。
(3)动词expect, intend, plan, hope, mean, promise, suppose, think, want, wish 等的过去式加不定式的完成式,或他们的过去完成时加不定式的一般式表示过去没有实现的愿望、期待或计划等。
I plan to attend the meeting to be held tomorrow.
我计划参加明天举行的会议。
He happened to be passing by when the accident happened.当事故发生时他碰巧路过。
I intended to have called on you,but I had an unexpected visitor.我本想去拜访你,但来了一位不速之客。
不定式的完成式句式拓展
3
It has been known for some time that... 句中的it在此处是形式主语,真正的主语是that引导的主语从句。
It’s strange that he (should) attend such an important meeting.
真奇怪,他竟能参加如此重要的会议。
It is reported that the temperature will decline sharply in one or two days.
据报道,一两天内气温将急剧下降。
3
【句式拓展】
(1)that从句作主语时,可以用it 来替换成以下几种结构:
①It is+名词短语+从句:这样的名词短语有a fact, a surprise, an honor, a pity, common knowledge(常识) 等。
②It is+形容词+从句:这样的形容词有natural, true, strange, necessary, important, obvious, certain, wonderful, funny, possible, likely等。
③It+动词+从句:这样的动词有seem, happen, appear, look, matter, make, strike, occur(突然想起)等。
④It+be+分词+从句:这样的分词有said, reported, believed, known, decided, proved, thought, expected, announced, arranged, hoped, agreed, amusing, puzzling, striking等。
it 作形式主语句式拓展
【句式拓展】
(2)it除了可以替代主语从句作主语外,还可以替代不定式或动词-ing作主语。
①It is+adj./n.+to do sth
②It is no use/no good/useless doing sth
It is necessary for you to learn a second foreign language.
你有必要再学一门外语。
It is common knowledge that the full moon brings fair weather.
皓月兆天晴,这是常识。
4
tiny amounts of 微量的;少量的;少许的
The Martian atmosphere contains only tiny amounts of water.
火星的大气层只含有微量的水。《柯林斯英汉双解大词典》
Last week, police in India have caught a theif who took tiny amounts of cash but left expensive jewelry behind in a store.
上周印度警方抓获一名小偷他进入一家商店偷走少量现金却撇下昂贵的珠宝没动。
This kind of plant can only take in tiny amounts of water.
这种植物仅吸收微量的水。
Sweat is made almost completely of water, with tiny amounts of other chemicals in it.
汗液几乎全是由水组成,伴随有少量其他微量化学物质。
4
amounts of 意为“大量的”,尤与不可数名词连用。
It was profitable for them to produce large amounts of food.
生产大量的食物能让他们获利。
I went out for a meal last night and drank copious amounts of red wine.
我昨晚出去吃饭,喝了很多红酒。
【词汇拓展】
the amount of...……的数量
a large/great amount of+n.[U]大量的……(作主语时,谓语用单数)
large amounts of+n.[U]大量的……(作主语时,谓语用复数)
in amount(=in all)总之,总计;在数量上
in large/small amount大/小量地;大/小批地
amount to总计,合计(amount为动词)
A large amount of money was spent on the project.
=Large amounts of money were spent on the project.
这项工程花费了大量金钱。
Their traveling expenses amount to seven hundred dollars.
他们的旅费共计700美元。
5
drive away 意为“使离去,赶走”。此外,还有“驱车离开;(把车)开走”之意。
You’d better drive away your cares as soon as possible.
你最好尽快摆脱烦恼。
I couldn’t watch them drive away as the tears were blinding me.
泪水模糊了我的双眼,我无法看着他们开车远去。
We heard him drive away.我们听到他驱车离去了。《牛津词典》
I will drive away your loneliness by talking about things that interest you.
我要谈论让你感兴趣的东西赶走你的孤独。
6
link为及物动词,意为“把……联系起来;连接”。link作名词时,意思为“联系;连接”。
The new bridge will link the island to the mainland.
新的大桥将把该岛与大陆连接在一起。
Their links with Britain are still strong.
他们与英国的联系依然很牢固。
【词汇拓展】
be linked to/with 与……有联系;与……连接
link A with/to B 把A与B连接起来
link up(with)sb/sth与……结合/联系
The two spacecraft will link up in space.两艘宇宙飞船将在太空对接。
We should link theory with practice.我们应该把理论和实践结合起来。
7
similar 意为“相似的,类似的”。be similar to与...相似
We have similar tastes in music.
我们在音乐方面爱好相似。
She is similar to her mother in many ways.
她在很多方面与她的妈妈相似。
【词汇拓展】
similarly adv.相似地,类似地;同样地
similarity n.相似,类似;相似之处
be similar to与……相似
be similar in在……相似
He was late and I similarly was delayed.他迟到了,我也耽误了。
There were points of similarity between them.他们之间有某些相似之处。
My teaching style is similar to that of most other teachers.
我的教学风格和多数教师相似。《牛津词典》
The two boys are similar in age and appearance.
这两个男孩子在年龄和外貌上很相似。
8
benefit是名词,意为“益处,实惠,好处”。作动词时,意为“得益;获利;有益于”。
This arrangement will be of great benefit to you both.
这种安排对你们两个都会非常有益。
Who are likely to benefit most by the new marriage laws
什么人可能从新的婚姻法中得到最大的好处
【词汇拓展】
beneficial adj.有用的,有益的,有好处的
be beneficial to对……有好处
be of benefit to对……有好处
to sb’s benefit 对某人有利
benefit from从……中获益
It can only be to your benefit to learn a new skill.学一种新技术只会对你有好处。
You will benefit from this experience in the end.你最终会从这次经历中获益。
1. as well as
2. be said to have done
3. It has been known for some time that...
4. tiny amounts of
5. drive away
6. link
7. similar to
8. benefit
为介词短语,意为“和,也,以及”。
不定式的完成式。表示动作发生在谓语动词之前
it形式主语,真正主语是that引导的主语从句
微量的;少量的;少许的
使离去,赶走;驱车离开;(把车)开走
vt. 意为“把……联系起来;连接”。
复习回顾
意为“与……相似”。
名词,意为“益处,实惠,好处”。
Read the passage again and try to recite the usage of the phrases.
Homework