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Step by Step 3000 第2册 Unit11:Space(4)

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Part 4. Language study and language appreciation.

Listen to the following statements you have learned in the previous and present units.

Pay special attention to the parts in bold part. Learn to appreciate and use the language.

1. to reduce the spread of virus/ a disease.

Health experts say washing you hands reduces the spread of virus and other organisms that cause disease.

Experts say hand washing is the simplest and most effective way to reduce the spread of infectious diseases.

2. to be blamed on.

In addition, millions of food poisoning cases each year are blamed on people who prepare food who do not wash their hands.

The spread of infections often is blamed on health workers who do not wash their hands after treating patients.

3. a reminder of...

So I think this should be a reminder of how large the role of prevention can be for reducing cancer deaths.

4. to act as a clearing house for...

Doctor Rifkin told ABC news that America's Doctor Online acts as a clearing house for the hundreds of thousands of responses, a web browser might turn up in answer to a question.

5. To be bathed in...

The observatory changed the astronomers' views of the heavens, after showing that the entire universe is bathed in the invisible gamma rays, but highest energy form of light.

重点单词   查看全部解释    
prevention [pri'venʃən]

想一想再看

n. 阻止,妨碍,预防

 
invisible [in'vizəbl]

想一想再看

adj. 看不见的,无形的
n. 隐形人(或物

 
reminder [ri'maində]

想一想再看

n. 提醒物,提示

 
universe ['ju:nivə:s]

想一想再看

n. 宇宙,万物,世界

联想记忆
virus ['vaiərəs]

想一想再看

n. 病毒,病原体

 
effective [i'fektiv]

想一想再看

adj. 有效的,有影响的

联想记忆
spread [spred]

想一想再看

v. 伸展,展开,传播,散布,铺开,涂撒
n.

 
observatory [əb'zə:və.tri]

想一想再看

n. 天文台,气象台,了望台

联想记忆
addition [ə'diʃən]

想一想再看

n. 增加,附加物,加法

联想记忆
appreciate [ə'pri:ʃieit]

想一想再看

vt. 欣赏,感激,赏识
vt. 领会,充分意

联想记忆

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