Unit 5 Wild animals (Integration)课件译林版英语八年级上册

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Unit 5 Wild animals (Integration)课件译林版英语八年级上册

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(共18张PPT)
1 … and our number may still drop. ……而且我们的
数量可能还会降低。(教材P73)
过去式为dropped,现在分词为dropping
drop /dr p/ vi. & vt. (使)降低;扔下;掉下
(1)(使)降低(本句用法)
She dropped her voice suddenly. 她突然压低了声音。
(作及物动词)
Temperatures drop at night, so bring some warm
clothing. 夜里气温下降,所以要带上些暖和的衣服。
(作不及物动词)
(2)扔下;掉下
Be careful not to drop that plate.
小心别把那个盘子摔了。
The apples are beginning to drop from the trees.
苹果开始从树上掉下来了。
(1)【可数名词】滴;水珠
Every drop of sweat counts! 每一滴汗水都不白流!
(2)【动词】中途卸客
Can you drop me near the bank
你可以让我在银行附近下车吗?
2 Now it is against the law to hunt us, but we are still
at risk. 现在捕杀我们是违法的,但我们仍然有危险。
(教材P73)
risk /r sk/ n. 危险,风险
【可数名词】&【不可数名词】危险;风险#1
at risk 有危险
take risks/take a risk 冒险
the risk of … ……的风险
take/run the risk of doing sth 冒险做某事
If you don’t wear your seat belt, you will be at
greater risk in a car accident.
如果你不系安全带,发生车祸时就会更加危险。
We do not expect untrained people to take risks.
我们不希望未经培训的人员去冒险。
We don’t want to run the risk of losing their business.
我们不想冒失去他们的生意的风险。
【动词】冒……的风险(或危险);冒险做#2
risk doing sth 冒险做某事
Don’t risk running the machine yourself.
不要冒险自己去操作机器。#2.2
【典例】 根据句意及中文提示填写单词。
A low-fat diet can reduce the _____(风险)of
heart disease.
risk
pollution /p lu n/ n. 污染
3 Air pollution and water pollution make it difficult
for animals to live healthy lives. 空气污染和水污染使
动物难以过上健康的生活。(教材P74)
【不可数名词】由“pollute(v.污染)去e + -ion
(名词后缀)”构成。#1
air/water/noise pollution 空气/水/噪声污染
cut down/reduce pollution 减少污染
Air pollution is harmful to our health.
空气污染对我们的健康有害。#1.2.1
To help cut air pollution, many people go to work on
foot or by bike now.
为减轻空气污染,如今许多人选择步行或骑自行车上班。#1.2.2
pollute 【动词】污染 其过去式为polluted。
polluted还可作形容词,意为“受污染的”。
【语境串记】
Waste gases pollute(v.) the air, and the polluted(adj.)
air is bad for our health. 废气污染空气, 受污染的空气对
我们的健康是有害的。
4 As a result, certain wild animals may not have a
place to live or enough food to eat. 因此,某些野生动
物可能没有地方生活或者没有足够的食物吃。(教材P74)
certain / s tn/ adj. 某种,某些
只能用于名词前作定语。#1
a certain + 单数名词 某一……
certain + 复数名词 某些……
A certain person called me yesterday.
昨天有人给我打电话了。
There are certain things I should discuss with my
mother. 有些事情我应该和我妈妈商量一下。#1.1.2.2
【形容词】肯定的,确定的,毫无疑问的
be certain of/about 对……有把握/确信无疑
If you want to be certain of getting a ticket,
book now. 要想有把握买到票,现在就得预订。
illness / ln s/ n. 疾病,病
由“ill (adj.有病的)+ -ness(名词后缀)”构成。其发
音以元音音素开头,其前的不定冠词应用an。
5 There are natural reasons like illnesses and natural
disasters … 存在像疾病和自然灾害这样的自然原因……
(教材P74)
With my parents’ care, I was well again after a serious
illness. 在父母的照料下,重病之后我又恢复了健康。
She is blind because of an illness. 她因为一场疾病而
失明了。

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