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电大文库【听力3】形考作业一答案：
P3
TASK 1
Step 1: Listen for main Ideas.
Listen and answer these questions.
Unit two>Part Three>Supplementary Listening>Pssage2. Washing Hands
(1) What is the passage mainly about?
The benefits of washing hands.
(2) What has the study found out about hand washing?
Many Americans fail to wash their hands after using public toilets.
Step 2: Listen for details.
1. Match the details with the main ideas.
Main ideas
(1) Many Americans didn't wash hands after using public toilets. a b
(2) Hand washing is a serious issue in keeping healthy. B
A campaign has been launched to get more people to wash their hands. E
a. 30% of people left toilets without washing hands.
b. Hand washing reduces the spread of infectious disease.
c. Colds, influenza can be spread by unwashed hands.
d. Patients in hospitals can die from infections caused by unwashed hands.
e. You should wash your hands with soap and hot water for at least 15 seconds.
2. Listen to the passage again and choose the best answer.
1). ___ adults were asked how often they washed their hands in the study.
A. 8,000 B.1,000 C. 5,000
2). More than __ % of Americans questioned said they always wash their hands after using public restrooms.
A. 95. B 67 C85
3) Hand washing is the __ and most effective way to reduce the spread of infectious deseases.
a. quickest B cheapest c simplest
4) Many food poison cases are caused by people ___
a. who eat food with unwashed hands
b. who put poison into food on purpose
c. who prepare food but do not wash their hands
5) The correct way to wash hands is to use soap and wash for _____
A, about 10 seconds b. at least 15 seconds C. at most 15 minutes
TASK2
Step 1: Listen for main ideas
Listen and answer these questions.
Unit four> part three> passage 1 ship wreck
1. What is this passage mainly about?
A message for help sent by a Dutch cargo ship.
2. How did the rescuers know where the ship was?
Radio operator was able to decipher where the ship was.
3.What did the rescuers find after went on board?
They found all the ship's officers in the chartroom and they were dead.
Step 2. Listen for details.
Listen and decide whether the statements are Tor F.
1. There two messages received by the radio operator. T
2. The ship that sent the SOS messages was a Spanish passenger ship. F
3. The rescuers found all the officers of the ship dead in one place. T
4. The officers were possibly killed by the sailors. F
5. The rescuers had planned to take an examination of the ship. F
电大文库【听力3】形考作业二答案：
TASK 1.
Step 1.
Can you guess the meaning of the underlined words from the words in shadow?
A new study shows that Europeans may be related to ancient people who came from Central Asia and the Middle East. The study suggests that these ancestors of Europeans arrived on the continent in three major groups.
古人
This year's team lacks veteran talent and may be one of the youngest Final Four teams in recent memory.
最年轻的
Step 2.
Listen and decide whether the statement is T or F. In the Clues column, write the words that have helped you choose your answer.
Unit Nine>test A> Passage 2>treatment to fight locusts
Answer T/F
1. A new chemical weapon against crop-destroying insects is invented. F
A new biological weapon against crop-destroying insects was developed.
2. In the late 1970s the last major invasion took place in Africa. F
In the late 1980s.
2.Using chemical pesticides could harm the environment, but they are cheap. F
It is costly.
3.Experts say there will never be another attack by the insects in Africa after the new treatment is used. F
Using of the treatment might not end invasions by locusts but could reduce the problem.
TASK 2.
Listen and decide where the following statements are T or F
Unit 10> part three >passage 1>Olympic Gold Medal
1). (F) Yang Xia's hometown is near Beijing.
Clue: Her home is 1.500 km away from Beijing.
2). (F) When Yang Xia began her weightlifting career, weighlifting was quite popular among girls in her hometown
Clue: Almost no girls had never heard of the sport.
3) (T) Yang Xia started to become famous after she won two gold medals at the Asian Championships in 1997.
Soon she jump to fame in 1997 at the Asian Championships by breaking three world recoreds.
4) (T) Yang Xia won the Sydney Olympic gold medal for the 125 kg category in 2000.
She broke the jerk and total world marks with 100kg, 125kg and 225kg respectively before winning the gold medal.
5). (T）Yang Xia wanted to thank her family most for their support and love.
Without them I would have never won an Olympic gold medal.
电大文库【听力3】形考作业三答案：
TASK 1
Step 1
Listen to the recording about Heart Defibrillators and complete the following flowchart.
Unit 18>test A> Listening Comprehension> Passage 2 Heart Defibrillators
Heart defibrillators is a useful machine to restart the machine to restart the heart beat of cardiac arrest patients.==== In one study security guards were trained to use defibrillators.==== In the second study researchers examined the use fo defibrillators on flights of American Airlines Planes.==== The wider use of heart defibrillators would increase the survival rates of cardiac arrest patients.=== The cost of a defibrillators is small when considering the value of a life saved.
Step 2. Now listen again and write a more detailed outline of the same text following the above example.
Main point: A defibrillator is a machine to restart a heart that stopped beating.
Body: 1. It sends an electric shock to the heart.
2.In one study security guards were trained to use defibrillators so that more people could be survived.
3. In the second study researchers examined the use fo defibrillators on flights of American Airlines Planes.
Conclusion: Though the wider use of heart defibrillators would be costly, health officials say the cost of a defibrillator is small when considering the value of a life saved.
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