资源简介

(共20张PPT)
UNIT 9
HUMAN BIOLOGY
To revise the vocabulary presented in the unit
To fill in the blanks in four short texts with the unit target and the unit target structures
To correctly order the lines of a dialogue
Li Zhen and her friends are designing a poster for their school’s monthly activity “Human and plete her report about the development of cloning using the correct form of the words and phrases below.
forever barrier in comparison clue crucial
accurate identical twins ethical abuse blessing
Cloning occurs when an egg splits and creates _____________. The first animal to be successfully cloned by scientists was a sheep called Dolly. Despite the initial success,
identical twins
forever barrier in comparison clue crucial
accurate identical twins ethical abuse blessing
she suffered from an illness and died at the age of six. Since then, other animals such as goats and camels have been cloned but have also experienced similar health problems. Scientists are not sure if this problem will continue to happen _____________.
_____________ with other species, attempts to clone monkeys have been far more complicated and took Chinese scientists many years.
forever
In comparison
forever barrier in comparison clue crucial
accurate identical twins ethical abuse blessing
The reason they wanted to break this technical __________ was that monkey cloning might offer __________ as to how to cure illness and disease. As the technology improves and becomes more __________ there would be even greater benefits.
While some people see cloning as __________ for medical and scientific development, others have __________ concerns about how it could be used. They worry that this
barrier
clues
accurate
crucial
ethical
forever barrier in comparison clue crucial
accurate identical twins ethical abuse blessing
technology will lead to cloning of other species. There is a risk that this could be _____________ by some companies or people.
Whether it is a ______________ or a curse for humanity remains to be seen and depends on how we choose to use it.
abused
blessing
Complete Chen Yang’s outline of the introduction to the human brain using the correct form of the words and phrases below.
contain electrical impulse organ locate
nerve responsible for atom relate to
The brain is the most important _______________ in the human body.
It _______________ over one hundred billion _______________ cells.
The nerve cells in our brain are connected by
_______________.
organ
contains
nerve
electrical impulses
contain electrical impulse organ locate
nerve responsible for atom relate to
4. There are more possible connections in one brain than there are ________________ in the universe.
5. Different parts of our brain are _____________ different parts of our body.
6. There are different areas in the brain that ________________
different functions.
7. Scientists have ________________ different areas of the brain.
atoms
related to
are responsible for
located
Li Zhen is asking for advice from her teacher Ms Wang. Order their dialogue.
( ) How can I increase my brain power What's your advice
( ) That's a good idea. Should I change my diet
( ) I advise you to do exercise that is good for your heart.
( ) What should I eat then
( ) Is there any particular kind of exercise I could do to help What do you suggest
( ) You could try eating fish, nuts and seeds to increase your intake of Omega-3.
( ) One thing you could do is to cut down on junk food.
( ) OK, I was also wondering what else I could do.
( ) It might be a good idea to increase your intake of Omega-3.
( ) You could try learning a new language to keep the brain flexible.
Which suggestion above do you think will work for you
Chen Xi is introducing the history of plete his speech using the correct form of words and phrase below.
variation widespread oppose to pose infectious
lung trial globe estimate
An epidemic is an ______________ 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 ____________ of previous viruses.
infectious
variations
variation widespread oppose to pose infectious
lung trial globe estimate
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 _____________ others such as the flu, which is _____________ but has much higher baselines.
opposed to
widespread
variation widespread oppose to pose infectious
lung trial globe estimate
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 ___________ of 50 million people, more than the number of people who died in World War I. Initially, it was believed that epidemics ___________ little threat to the modern world, until SARS outbreak in 2002.
estimate
posed
variation widespread oppose to pose infectious
lung trial globe estimate
The SARS epidemic started as a ___________ disease in China but eventually spread across the ___________ to countries such as Canada and Vietnam. It resulted in the infection of about 8,000 people and since then, scientists have undertaken ____________ on treatments to prevent future deaths.
lung
globe
trials
Chen Xi and Jonathan, an English exchange student, are talking about their homework to gather facts about the Ebola virus outbreak in African 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 _________ (be) a serious life-threatening disease. I ___________ (find) out that the first person to die in this outbreak was a 2-year-old child who ___________ (live) in a rural village in Guinea, Africa.
is
found
lived
Chen Xi: How terrible!
Jonathan: Yes, but by November 2014 there _________ (have) almost 5,000 deaths. Some experts believe this figure _________ (be) higher because some people __________ (do not) seek medical help.
Chen Xi: I __________ (discover) that the virus ___________ (spread) from one person to another. In this outbreak, symptoms __________ (appear) between eight to ten days after direct contact with an infected person.
had been
is
did not
discovered
spread
appeared
Jonathan: How can they stop another large outbreak
Chen Xi: They _________________ (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.
haven’t developed
What have you learnt in this unit Reflect and complete the diary.
Useful words and expressions to talk about the human body: _________________________________________
Three impressive sentences you’d like to remember: ______________________________________________
Three ways you can ask for and give advice: ________
______________________________________________
The parts I like/dislike about this unit: _____________
_______________________________________________

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