人教课标版B9 Unit 4 Exploring Plants Language points（课件42张）

课件42张PPT。人教课标
高三 选修 9
Unit 4Unit 4
Exploring plantsLanguage Points1. Collecting “exotic” plants, as they are called, dates back to the earliest times.
date back to 追溯到; 始于e.g. This town dates back to Roman times.
The castle dates back to the 14th
century.
These societies dated as far back as a
century.date from 追溯到; 始于e.g. The dress dates from the 19th century.
This custom dates from the 17th century.
My interest in stamp collecting dates
from my schooldays.dated adj. 过时的，陈旧的e.g. Those words all seem rather dated.
Clothing styles became dated very
quickly. 2. Many ancient civilisations saw the value
of bringing back plants from distant lands. value vt. 估价; 珍视, 珍惜
e.g. How much do you value it at?
I value my friendship with him. value n. 价值, 价值观念
e.g. Every experience is of great value.(作表语) 有价值 Nothing of value was stolen.
put value on 定价，重视
e.g. He puts little value on qualifications.
set (a) value on 重视，估计
e.g. She sets little value on wealth.(作定语) 值钱的e.g. If you borrow my electric drill don’t forget to bring it back.
All library books must be brought back before June 20.
If you’re going to the market please
bring me back ten eggs.bring back
(1) 归还, 带回来(2) 使回想起e.g. Seeing you brought back many memories.
His story brought back our happy
childhood together.
The river smell brought back a night
some years before.bring about
bring down
bring forward
bring in
bring on
bring out引起，实现减少，打倒；击落提出，提前，提早收获，收入，请来引起；使提高表现出来，出版，生产 e.g.
Scientists say that many factors
bring about changes in the weather.
The scene in the room brought the
poor man back to reality.
It will take more than speeches to
bring down the prices these day. 引起带回来减少At our next Council meeting, he is
proposing to bring forward the question
of developing the city centre.
How much does garage business
bring in each month? 提出收入，收获He still insisted that he would bring
out a book in the spring.
New questions are constantly being
brought up at the weekly meeting.
The child is very badly brought up. 带大，抚养长大出版提出3. However, … that the exploration of the
botanical world began on a large scale.e.g. They are preparing for war on large
scale.
The project was undertaken on a large scale.on a large scale 大面积地scale n. 规模 (可数, 不可数)The business had to be reduced in scale.
2. Private undertakings were small in scale in the Red areas.
3. The statue was made to scale, one inch to one foot.按规定比例4. Brave young men took the opportunity of going on botanical expeditions, …
take opportunity of doing / to do sth.
抓住 …… 的机会
e.g. He took the opportunity to question
his wife.
I shall take the first opportunity of seeing you.
I’m glad to have the opportunity of talking to you.He sought opportunities of doing her
little services.
Don’t let slip any opportunity of
practising your English.
Somehow they didn’t seem to get an
opportunity to object.
There may be an opportunity for
you to see the manager this afternoon. 5. One plant explorer lost several years’ work when his plants were ruined with seawater.
ruin vt. 毁灭, 毁掉, 破坏
e.g. The rain has ruined the children’s trip.
We took a picture of the ruined cottage.
The fire ruined the house. be in ruins 一片废墟, 落空
e.g. The town lay in ruins.
bring/come to ruin 使毁灭/破产
e.g. All his plans came to ruin.
fall into ruin 已成废墟
e.g. The castle has fallen into ruin.6. The world of plant exploration was
completely changed with Dr Nathaniel
Ward’s invention of a tightly sealed
portable glass container.
tightly 紧紧地, 满满地
e.g. Tie it as tightly as you can.
His arms were folded tightly.
He held me by the arm so tightly that it hurt. tight adj. 紧的, 绷紧的, 拉紧的
e.g. The coat looks tight.
We hope to finish the task next week, but the schedule is a bit tight.
tight adv. 紧地, 满地
e.g. Hold tight to the railing or you may slip and fall. The passengers were tightly packed in the train.
“Look! Chris, look!” Andrew whispered, pressing my arm tightly.
Shut the door tight.
Make sure that the bags were packed tight. seal vt. 盖章, 封口
e.g. The treaty was signed and sealed by
both governments.
Food such as corned beef and
condensed milk are sold in sealed tins.
His eyes were sealed with sleep.
7. At that time, there were restrictions on
the movements of Europeans and so …
restriction [U] n. 限制
e.g. The park is open to the public without restriction.
He dislikes their restriction of his freedom of choice. restriction [C] n. 限制性规定
e.g. The restrictions on the use of the play- ground: No fighting. No damaging property.
The government placed restrictions on the numbers of foreign cars that could be imported.restrict vt. 限制, 控制e.g. He feels this new law restricts his
freedom.
The trees restricted our vision.
restricted adj. 有严格控制的, 局限的
restrictive adj. 限制性的e.g. She is now on a very restricted diet, and can have no sweets.
The space provided is too restricted.
He finds life in the small town too restrictive. 8. One of the collectors was Father Farges,
who collected 37 seeds from a tree that
had appealed to him.
appeal vt. 吸引, 投合兴趣或爱好
e.g. How did the course appeal to you?
These pictures don’t appeal to the children. appeal vt. 呼吁, 请求
appeal to sb. for help
e.g. He appealed to his friends for support.
The murderer appealed to the court for mercy. 从a-d中找出与每句话中 appeal 相符合的意思。
The government is appealing to everyone to save water.
2. When Mother said “No,” my little sister would appeal to Father.
3. Does the idea of working for a venture company appeal to you?
4. He appealed against the judge’s decision.d. 向……呼吁c. 上诉a. 对……有吸引力b. 求助于 翻译下列句子。
警方向公众呼吁不要轻易相信陌生人。
2. 你对这些画感兴趣吗？
3. 她的幽默感吸引了他。
4. 船长对这个方案提出了异议。The police appeal to the public not to trust
strangers easily.
Do these paintings appeal to you?
Her sense of humour appealed to him.
The captain appealed against the proposal.1. However it was not until …
that the exploration …
began ….
It is/was not until … that …
直到……才句子结构e.g. It was not until the 1880s that there
were consistent experimental
findings to support his theory.
Not until I began to study did I
realize how much time I had
wasted. The secretary worked deep into night, preparing an important speech for the president.2. Brave young men took the opportunity of going …, often facing many dangers including …
facing 在句中作状语, 表示“从事植物考察”过程中的伴随情况。
e.g. He rushed out of the room, crying. e.g. The teacher came in, followed by his students.
She sat by the window, lost in thought.3. At that time, there were restrictions on … in order to travel unnoticed, he …
in order to travel 不定式作目的状语, unnoticed 作 to travel 的伴随状语。4. Not only did Fortune … but he also shipped …
not only 放在句首要倒装, 表示强调。
Not only did he complained the food, he also refused to pay for it.
Not only did they bring snacks and drinks, but they also brought cards for entertainment when they had a picnic in the forest.只有当 not only … but also连接两句子时, 才倒装, 若连接的不是句子, 则不用倒装。
Not only John but also Ben should have got a full mark in the exam.
What he is worrying is not only his food but also his bed. 根据下列各句句意及所给单词的首字母或汉语提示，写出该单词的正确形式。
He said that he was born and brought
up in a d______ village.
2. When dealing with public relations, we should try to avoid personal c________.
3. The t______ character of his design is apparent in the splendid decorations.Practisedistantconflict(s)typical4. I’ll buy the MP3 on condition that you
l_____ the price.
5. It is well known that all work and no
play makes Jack a d___ boy.
6. The baseball game was p_________
because of the bad weather.
7. Be careful with that china. It’s very
_______ (易碎的).lowerdullpostponeddelicate8. The government placed many
___________ (限制) on foreign trade.
9. The original problem has _______ (演
变) into something quite different.
10. People built a __________ (纪念碑) in
his honor. evolvedmonument restrictions Retell the story to your partner.
2. Finish off the exercises in your
book.HomeworkThank you!