英语听力
Unit 7 Living with diseases Listening
Jane works at the Center for Disease Control and prevention as a disease detective.
Listen to the tape and answer the questions.
The Diseases detective.
Jane is one of the experts at the Center for Disease Control and Prevention.
People at the center study how the diseases start and spread,
and as the names shows,try to control and prevent diseases.
We ask Jane about her work.
Part One Well,I have to be a detective.
I go to a place where disease has broken out
and I look for clues about the diseases.
I try to find as much information as I can about what happened.
Who were sick,what are the signs,do they have a fever,
a headacheor a sore throat,when did they get sick?
When I have collected the information,
I use it to find out what caused the problem.
We can use what we learn to prevent others from getting sick.
Jane,and other disease detective at the center do their jobs in different ways.
Some detectivesworking in laboratories where they examine test and samples.
Others travel to towns or villages
where there are diseases and talk to people who are sick.
All of the experts of the center know that their work is important.
If they do their jobs well,they will save lives.
Part Two
A:How often do you actually go to the places where a new disease has broken out?
B:Oh,It happens every now and then,probably about every three month or so.
A:How do you find about new diseases?
B:We will usually hear from doctors and hospitals.
If they notice anything strange,they will give us a call and ask for a help.
If we think it is necessary,we'll go to the place when people are getting sick.
A:Are you afraid of catching the diseases you are studying?
B:Well,yes sometimes,but we are always very careful.
If you know what you are doing,you can protect yourself.
Besides,I'm more afraid of what might happen if we don't find out what kind of disease it is.
A:What can ordinary people do to protect themselves?
B:The best thing you can do is simply to wash your hands often,
and try to avoid crowded places.
Wearing a mask over your face may help,
but it is probably not necessary unless you are caring for a sick person.
It is also important to see a doctor if you get sick,
so that you don't spread disease without knowing it.
听力理解
Work Book Unit 7 Listening
Ken is learning about HIV/AIDS in school.
His teacher has asked him to interview a doctor at a local hospital
and write a report about basic HIV/AIDS facts.
Listen to the interview and help Ken prepare the report.
Part One A:Hello,Dr Wards.
Thank you for letting me interview you.
B:You are welcome.Now,what would you like to know?
A:Well,my first question is about the name of the disease.
What does AIDS stand for?
B:When we talk about AIDS,we often use the term HIV/AIDS.
HIV is the virus that causes AIDS.
AIDS stands for Acquired Immune Deficiency Syndrome.
A:Acquired Immune Deficiency Syndrome?
OK,got it.But I'm not sure I understand what it means.
B:Well,to acquire something is to get something,
so acquired means that you can get infected with the disease,
Immune comes from Immune system,
the system that protects your body from diseases.
A:So Acquired Immune
tells us that this is the disease that we can get from other people.
And that it has something to do with our immune system.
What exactly does AIDS do to our immune system?
B:That's what the next word tells us.
If something is deficient,it means that it isn't functioning probably.
It isn't working in the way it should.
So Acquired Immune Deficiency
means that even though we were born with a good immune system
we have now got the disease that breaks down the immune system.
A:Wow,that's terrible.
So what happens when someone's immune system doesn't work?
B:Well,to put it simply,he or she gets sick lot.
The last word in AIDS 'Syndrome',
means all the bad things that happen to your body,
when the immune system doesn't work.
Part Two People who die of AIDS actually don't 'die' of AIDS.
When a person infected with HIV develops AID.
She or she easily gets sick.
A person with AIDS has a very weak immune system.
Many common diseases can be cured in patients whose immune system functions well.
But when they enter the body of a person with AIDS,they can kill him or her.
Many AIDS patients die of infections or serious colds.
But there are also many diseases that we have never heard of.
If your immune system is working,they may not be able to any harm.
But because the immune system has been weakened the disease can't be cured.
They will grow stronger and stronger
until one day they kill the patient with AIDS.
Therefore,much of the treatments AIDS patients receives
is means to help the body defend itself against diseases.
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