资源简介

(共31张PPT)
Unit 5
Unit 5 Looking into nature
Secrets
caught in time
dinosaur
n. 恐龙
feather
n. 羽毛，翎
feather-covered
adj. 羽毛覆盖的
A feather-covered dinosaur lived on the earth millions of years ago.
一只长有羽毛的恐龙生活在数百万年前的地球上。
lizard
n. 蜥蜴
amber
n. 琥珀
whether
conj. 是否(表示选择或不确定)
Scientists study the fossil to find out whether the ancient lizard is well preserved in the amber.
科学家们研究这块化石，想弄清这只远古蜥蜴是否在琥珀中被完好保存。
northern
adj. 北部的
species
n. 物种
unknown
adj. 不知道的，未知的
Scientists are trying to discover the unknown northern species in the deep forest.
科学家们正试图发现深林中这种未知的北方物种。
African
adj. 非洲的，非洲人的belief
n. 观点
fully
adv. 完全地，充分地，彻底地
Goodall fully stuck to her belief about protecting African wild animals.
古道尔完全坚守自己保护非洲野生动物的信念。
unlock
v. 揭开
unlock the secrets of sth
揭开某事的秘密
newspaper
n. 报(纸)
The newspaper tells us how scientists unlock the secrets of ancient life.
这份报纸讲述了科学家们如何解开远古生命的奥秘。
writing
n. 写作，著书
style
n. 风格
method
n. 方法，办法
Good writing style often comes from a proper and useful method.
好的写作风格往往源于恰当且实用的写作方法。
text
n. 文字材料
alive
adj. 有活力的，有生气的
argument
n. 论点，论据
We can make the text alive with a clear and interesting argument.
我们可以用清晰又有趣的论点让文本变得生动。
1. It is running around, looking for its next meal.
它在四处奔跑，寻觅它的下一餐。
look for sb/sth 寻找某人/某物；强调 “找”的过程
e.g. I’m looking for my keys. They are missing.
我在找我的钥匙，它们不见了。
She is looking for a new job with better opportunities.
她正在寻找一份有更好机遇的新工作。
find v. 发现；找到，强调“找”的结果
e.g. Can you find your mom’s wallet
【语境应用】根据语境选择find或look for，并用其适当形式填空。
1. I’m ___________ my blue sweater. I can’t ___________ it.
2. Look at this map. You can ___________ my school on it.
3. Mrs. Blake’s dog is lost. She is ___________ it.
looking for
find
find
looking for
2. However, thanks to a piece of amber, scientists now know that this idea is wrong.
然而，多亏一块琥珀，如今科学家们认识到这个观点是错误的。
thanks to 幸亏，由于，因为
e.g. Thanks to your help, we were successful.
多亏有你的帮助，我们这次成功了。
Thanks to the bad weather, the game has been called off.
由于天气恶劣，比赛取消了。
【语境应用】根据提示完成句子。
1. _______________________ (多亏了医生) I am well again.
2. We were ready in time, ____________________ (多亏了你).
3. __________________ (多亏了你的帮助), we arrived there safely.
Thanks to the doctor
thanks to you
Thanks to your help
3. They can tell us whether dinosaurs had feathers, but that’s not all.
它们能告诉我们恐龙是否有羽毛，但其价值远不止于此。
whether conj. 是否(用于表示选择或对某事不确定)
可用来引导宾语从句； whether to do sth
e.g. Tom asked me whether I needed any help.
Tom问我是否需要帮助。
John doesn’t know whether to go to college or not.
John不知道是否要去上大学。
【语境应用】请根据汉语意思写出相应的英语句子。
1. 汤姆不知道是否要留在这儿。
2. 不管你同不同意，我明天都要去北京。
Tom doesn’t know whether to stay here or not.
I’ll go to Beijing tomorrow, whether you agree or not.
4. This species no longer grows in this area.
这个物种如今在该地区已绝迹。
no longer = not ... any longer 不再……
no longer通常位于实义动词之前，系动词be、助动词或情态动词之后
not ... any longer中的any longer常放在句末
e.g. Rose no longer lives here.
= Rose doesn’t live here any longer.
Rose不再居住在这里了。
I will no longer play computer games.
= I will not play computer games any longer.
我再也不玩电脑游戏了。
The old man can no longer care for himself.
= The old man can’t care for himself any longer.
那个老人不能自理了。
【语境应用】根据所讲内容用no longer和not ... any longer两种形式将下列汉语句子翻译成英语。
1. 她不再在这儿工作了。
2. 我姐姐不再是护士了。
She no longer works here.
She doesn’t work here any longer.
My sister is no longer a nurse.
My sister is not a nurse any longer.
5. Scientists used to believe that ants came from the northern half of the earth.
此前，科学家们认为蚂蚁起源于北半球。
used to (do) 过去经常发生，曾经
e.g. I used to play the piano when I was younger.
我年轻的时候经常弹钢琴。
I used to live in the countryside when I was a child.
我小时候曾住在乡村。
e.g. Did you use to / Used you to spend much time playing computer games
used to结构的否定形式有两种：didn’t use to或usedn’t to (只用于英式英语)
used to结构在构成疑问句时，可借助助动词did，也可将used提到主语前(只用于英式英语)
e.g. The Whites didn’t use to live here. / The Whites usedn’t to live here.
词条 意思与用法 例句
be / get used to (doing) sth 习惯于(做)…… After three weeks she was used to the hot weather there.
use ... to do ... 用……做…… Most people now use their cars to go to work.
be used to do sth 被用来做…… This knife is used to cut fruit.
【语境应用】Ⅰ. 根据汉语意思完成英语句子，每空一词。
1. 以前这里有一家影院。
________ ________ ________ be a cinema here.
2. 我能用你的电话给我妈妈打个电话吗？
Can I ________ your phone ________ call my mother
3. 这些东西是用来做飞机模型的。
These things ________ ________ ________ ________ model planes.
4. 我每天做饭，所以就习惯了。
I cook every day, so I ________ ________ ________ it.
There used to
use to
are used to make /
for making
am used to
Ⅱ. 根据各题后括号内的要求完成下列各题，每空一词。
1. Grandma used to grow strawberries on her farm. (改为否定句)
Grandma _________ ________ ________ ________ strawberries on her farm.
2. I used to collect stamps. (对划线部分提问)
________ ________ ________ ________ collect
didn’t use to grow
What used you to
3. They used to play basketball at school. (对划线部分提问)
________ ________ ________ ________ ________ ________ basketball
4. She used to go to the library on Sundays. (改为一般疑问句并作肯定回答)
—________ ________ ________ ________ ________ to the library on Sundays
—________, ________ ________.
Where did they use to play
Did she use to go
Yes she did
6. These goals include making the text alive, making their arguments strong, getting readers’ attention, etc.
alive adj. 有活力的，有生气的；一般不用在名词前
e.g. It was the kind of morning when you wake up and feel really alive.
这是一个醒来觉得充满活力的早晨。
The whole house was alive with activity.
整幢房子里都很热闹。
lively, alive, living
词条 意思与用法 例句
alive adj. 活着的；在世的，通常在句中作表语 Emily was still alive when I reached the hospital.
living adj. 活着的，通常位于名词前作定语 Are you sure there are no living things on other planets
lively adj. 活泼的；活跃的；有生气的，常在句中作定语或表语，用来修饰表示人或物的词 Miss Li’s classes are lively and interesting.
She is a lively young woman.
【语境应用】根据句意选用lively, alive或living填空，每词限用一次。
1. My brother thinks that Jackie is the most famous ________ actor.
2. I want to play with that dog called Xiaobai because it’s so ________.
3. Although he was hit by a car, he was still ________.
alive
living
lively

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