北师大版（2019）选择性必修第一册Unit 3 Conservation Topic Talk 重点单词课件(共23张PPT)

(共23张PPT)
Unit 3 Topic Talk
conservation
/ k ns ve ( )n/
n. 保护
① Environmental conservation has been a hot topic in recent years.
conserve v. 保护
② If we try our best to recycle the wastes, we can reduce pollution and conserve natural resources.
destroy
/d str /
v. 破坏；毁掉
destruction n. 破坏，摧毁
destructive adj. 破坏性的
① In the earthquake that happened on 3 August 2014, all the houses and buildings were destroyed, and great damage was caused to Yunnan. At that time Ludian was almost in ruins.
② Many animals will be in danger because of the destruction of the environment.
plastic
/ pl st k/
adj. 塑料制的
e.g. Single-use plastics are one of the world's biggest sources of plastic pollution.
n. 塑料
mining
/ ma n /
n. 采矿业
coal/diamond/gold mining
e.g. They were mining for gold.
mine v. 采矿 n.矿山，矿井
item
/ a t m/
n. 一项，一条
n. 物品
an item of news/a news item
e.g. We carefully labelled each item with the contents and the date.
recycle
/ ri sa kl/
v. 再回收；回收利用
e.g. Plastic bags cause the deaths of 100,000 marine animals each year because the animals mistake them for food. So if you must use them, always recycle them.
informative
/ n f m t v/
adj. 有教育意义的；知识性强的
e.g. I found the talk both informative and entertaining.
threat
/θret/
n. 威胁
e.g. After the lecture, I can see that the use of oil and coal is one of the biggest threats to our planet.
threaten v. 威胁
threatening
adj. 带威胁的，恐吓的
threatened
adj. 受到威胁的
① Wildlife has been greatly _________ (threat) in the modern age.
② Floating ice around Iceland was becoming a threat ________ navigation(航运).
③ Some cultures see direct eye contact as impolite or _________ (threaten) behavior, while Americans see it as a sign of honesty.
threatened
to
threatening
switch
/sw t /
v. 转换，改变
a light switch
a policy switch
n. 转换，改变
n. 开关
② Not only is biking good exercise, but switching from a car to a bike also reduces the amount of pollution in the air.
① There is a switch on the wall for turning on the lights.
③Lucy got home from work early. After changing clothes, she switched off the light and came to the living room. Then she switched on the TV and switched it over to Channel 10．
n. 开关
switch from A to B 从A转换到B
switch off = turn off 关闭
switch on = turn on 打开
switch over (to) 换台(至)
have a role
起某种作用
① We all have a role to play in protecting the environment. If we all do our part, we can live a healthier life on Earth.
do one’s part 尽某人的职责
② China is playing an increasingly important part/role in safeguarding world peace.
play a part/role in
在…中扮演角色/起作用
do one’s part
尽自己的职责
Translation：每个学生都应尽本分以求平稳的进步。
Every student ought to do his part to make steady progress.
Translation：媒体在影响人们的观念方面起着很重要的作用。
The media plays a very important role/part in influencing people’s opinions.
rhino
/ ra n /
n. 犀牛
e.g. They have driven the rhino to the edge of extinction.
illegally
/ li ɡ li/
adv. 非法地，违法地
illegal adj. 非法的
legal adj. 合法的
legally adv. 合法地
① Many animals are illegally hunted for something they have.
② It’s illegal to read people’s private letters without permission.
hunt
/h nt/
v. 猎杀，猎取
① Whales are still being hunted and killed in the Arctic.
② Hunters went to the island to hunt for the buried treasure.
hunter n. 猎人；搜寻者
hunt for 寻找
horn
/h n/
n. （牛、羊等头上的）角
e.g. Rhino is a big animal and has a horn on its head.
extinct
/ k st kt/
adj. 灭绝的，绝种的
① We must protect these endangered animals before they become extinct.
extinction n. 灭绝
②The only clear explanation is that humans caused the extinction of the various mammal species through excessive(过度的) hunting.
incredibly
/ n kred bli/
adv. 非常地，极端地
incredibly lucky/stupid/difficult/beautiful
incredible adj. 难以置信的
urgent
/ d nt/
adj. 紧急的，急迫的
① That's an incredibly urgent matter.
② He urged us to collect money for those who were in urgent need of food and clothes. We must deal with this as a matter of urgency.
urge v. 敦促,主张
urgency n. 紧急,急迫
② Do you have an urge to raise a happy family
① He urged the manager to approve the plans for his reform programme.
③ The report urged that all children should be taught to swim.
urge sb to do sth 敦促某人做某事
n. 强烈的愿望
urge that… sb (should) do 竭力主张
④ It was urgent for China to develop energy conservation and green buildings for sustainable development.
It is urgent for sb to do sth
⑤ It is urgent that the relative laws should be made to prevent such things from happening again.
It is urgent that… sb (should) do 竭力主张