北师大版（2019）选择性必修第三册Unit9Human Biology Lesson3 Epidemics Explained课后习题讲解课件-(22张ppt)
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| 名称 | 北师大版（2019）选择性必修第三册Unit9Human Biology Lesson3 Epidemics Explained课后习题讲解课件-(22张ppt) |  | |
| 格式 | pptx | ||
| 文件大小 | 4.5MB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 北师大版（2019） | ||
| 科目 | 英语 | ||
| 更新时间 | 2022-11-10 21:17:15 | ||
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(共22张PPT)
UNIT 9 Human Biology
Lesson 3 Epidemics Explained
课后习题讲解
课本69页4. Chen Xi is introducing the history of plete his speech using the correct form of the words and phrase below.
variation widespread oppose to pose infectious lung trial globe estimate
An epidemic is an 1. _________________disease that spreads rapidly to a large number of people within a short period of time.Epidemics have been occurring as long as humans have been on Earth.Some epidemics are 2_______________of previous viruses.
infectious
variations
A disease reaches epidemic levels when a certain number of deaths occur as a result of it and this number will be different for each disease.One disease might result in just a few deaths but be classified as an epidemic,as 3.______________others such as the flu,which is 4______________ has much higher baselines.
opposed to
widespread
In human history,there have been some deadly epidemics.In the early 20th century, the Spanish Flu of 1918 was a massive epidemic that killed an 5. ___________of 50 million people,more than the number of people who died in World War I.
estimate
Initially,it was believed that epidemics 6.____________little threat to the modern world, until SARS outbreak in 2002.The SARS epidemic started as a 7___________disease in China but eventually spread across the 8.________________ to countries such as Canada and Vietnam.
pose
lung
globe
It resulted in the infection of about 8,000 people and since then,scientists have undertaken 9____________on treatments to prevent future deaths.
trial
课本70页5 Chen Xi and Jonathan, an English exchange student, are talking about their homework to gather facts about the Ebola virus outbreak in Africa in plete their dialogue with the correct form of the verbs in brackets.
Chen Xi: Isn't it really bad if you get Ebola Jonathan: Yes, Ebola 1_____________ (be)a serious life-threatening disease. I 2.____________(find)out that the first person to die in this outbreak was a 2-year-old child who 3______________(live)in a rural village in Guinea,Africa.
is
found
lived
Chen Xi: How terrible!
Jonathan: Yes, but by November 2014 there 4_______________(have)almost 5,000 deaths. Some experts believe this figure 5.________________ (be)higher because some people 6_______________ (do not)seek medical help.
had been
is
did not
Chen Xi: I 7_____________(discover)that the virus 8 ______________________(spread)from one person to another.In this outbreak, symptoms 9________________(appear) between eight to ten days after direct contact with an infected person.
discovered
spread
appeared
Jonathan: How can they stop another large outbreak
Chen Xi: They 10.____________________________not develop)a vaccine yet, but they have learnt to isolate patients when they have symptoms. Jonathan: I hope scientists can develop a vaccine soon.
have not developed
课本79页3 Lesson 3 Choose the words below to replace the words or phrases in italics.
multiple pace salary retirement decent occupations essential specialist retrain likelihood
I listened to a really interesting podcast (博客）about future careers yesterday. It said that we can expect to have 1 many jobs over the course of our lives rather than just one.
1. multiple occupations
Things are changing at a very fast 2 speed these days in the job market and this will continue in the future.
2. pace
Although there will always be the opportunity to earn a 3 satisfactory income, if you want to really achieve great things, you should aim to become a 4 highly skilled person in one particular area.
3. decent salary
4. specialist
There is a strong 5 chance that people will regularly 6 train again to leam more skills until they reach 7 the time they stop working.
5. likelihood
6. retrain
7. retirement
The podcast also talked about the types of skills that will be 8 absolutely necessary in the future such as critical thinking.I can't wait to see what the future brings!
8. essential
UNIT 9 Human Biology
Lesson 3 Epidemics Explained
课后习题讲解
课本69页4. Chen Xi is introducing the history of plete his speech using the correct form of the words and phrase below.
variation widespread oppose to pose infectious lung trial globe estimate
An epidemic is an 1. _________________disease that spreads rapidly to a large number of people within a short period of time.Epidemics have been occurring as long as humans have been on Earth.Some epidemics are 2_______________of previous viruses.
infectious
variations
A disease reaches epidemic levels when a certain number of deaths occur as a result of it and this number will be different for each disease.One disease might result in just a few deaths but be classified as an epidemic,as 3.______________others such as the flu,which is 4______________ has much higher baselines.
opposed to
widespread
In human history,there have been some deadly epidemics.In the early 20th century, the Spanish Flu of 1918 was a massive epidemic that killed an 5. ___________of 50 million people,more than the number of people who died in World War I.
estimate
Initially,it was believed that epidemics 6.____________little threat to the modern world, until SARS outbreak in 2002.The SARS epidemic started as a 7___________disease in China but eventually spread across the 8.________________ to countries such as Canada and Vietnam.
pose
lung
globe
It resulted in the infection of about 8,000 people and since then,scientists have undertaken 9____________on treatments to prevent future deaths.
trial
课本70页5 Chen Xi and Jonathan, an English exchange student, are talking about their homework to gather facts about the Ebola virus outbreak in Africa in plete their dialogue with the correct form of the verbs in brackets.
Chen Xi: Isn't it really bad if you get Ebola Jonathan: Yes, Ebola 1_____________ (be)a serious life-threatening disease. I 2.____________(find)out that the first person to die in this outbreak was a 2-year-old child who 3______________(live)in a rural village in Guinea,Africa.
is
found
lived
Chen Xi: How terrible!
Jonathan: Yes, but by November 2014 there 4_______________(have)almost 5,000 deaths. Some experts believe this figure 5.________________ (be)higher because some people 6_______________ (do not)seek medical help.
had been
is
did not
Chen Xi: I 7_____________(discover)that the virus 8 ______________________(spread)from one person to another.In this outbreak, symptoms 9________________(appear) between eight to ten days after direct contact with an infected person.
discovered
spread
appeared
Jonathan: How can they stop another large outbreak
Chen Xi: They 10.____________________________not develop)a vaccine yet, but they have learnt to isolate patients when they have symptoms. Jonathan: I hope scientists can develop a vaccine soon.
have not developed
课本79页3 Lesson 3 Choose the words below to replace the words or phrases in italics.
multiple pace salary retirement decent occupations essential specialist retrain likelihood
I listened to a really interesting podcast (博客）about future careers yesterday. It said that we can expect to have 1 many jobs over the course of our lives rather than just one.
1. multiple occupations
Things are changing at a very fast 2 speed these days in the job market and this will continue in the future.
2. pace
Although there will always be the opportunity to earn a 3 satisfactory income, if you want to really achieve great things, you should aim to become a 4 highly skilled person in one particular area.
3. decent salary
4. specialist
There is a strong 5 chance that people will regularly 6 train again to leam more skills until they reach 7 the time they stop working.
5. likelihood
6. retrain
7. retirement
The podcast also talked about the types of skills that will be 8 absolutely necessary in the future such as critical thinking.I can't wait to see what the future brings!
8. essential