(单词翻译:单击)
Wang Hongguang, director of the China Biotechnology Development Center, says that China has already finished technology accumulation in biotechnological field. At present, China is able to develop and industrialize biotechnology at the same time. This is shown in the following aspects:
First, China is the world’s largest producer and user of vaccines. By applying human vaccines, China has eradicated4 or curbed5 the spread of major contagious6 diseases such as malaria7, plague and poliomyelitis, making great contributions in increasing people’s life expectancy8. In China, people’s average life expectancy has increased from 37 in 1949 to the present 73, and the use of vaccines has played a very important role in this aspect.
Secondly9, the use of hepatitis B vaccine3 has prevented 20 million new-born babies from contracting the disease, and saved 700 billion yuan of medical cost for the country. The research of hepatitis B vaccine, an effectual remedy for the disease, has entered into the second stage for clinical use. Animal tests show that the vaccine can kill the virus inside animal body, and it might help change the virus condition of humans from positive to negative.
Research of the AIDS virus will soon enter the second stage of trial clinical use. Research of the AIDS vaccine which has a curable effect on the disease is also being conducted, and will be put to trial use.
China is also the world’s largest antibiotics10 and vitamins producer. The use of antibiotics such as penicillin11 has played an important role in preventing infectious diseases, and the use of vitamins in improving the health of its people.
The bird flu vaccine will soon enter the second stage of trial research.
收听单词发音
1
ministry
|
|
| n.(政府的)部;牧师 | |
参考例句: |
|
|
|
2
vaccines
|
|
| 疫苗,痘苗( vaccine的名词复数 ) | |
参考例句: |
|
|
|
3
vaccine
|
|
| n.牛痘苗,疫苗;adj.牛痘的,疫苗的 | |
参考例句: |
|
|
|
4
eradicated
|
|
| 画着根的 | |
参考例句: |
|
|
|
5
curbed
|
|
| v.限制,克制,抑制( curb的过去式和过去分词 ) | |
参考例句: |
|
|
|
6
contagious
|
|
| adj.传染性的,有感染力的 | |
参考例句: |
|
|
|
7
malaria
|
|
| n.疟疾 | |
参考例句: |
|
|
|
8
expectancy
|
|
| n.期望,预期,(根据概率统计求得)预期数额 | |
参考例句: |
|
|
|
9
secondly
|
|
| adv.第二,其次 | |
参考例句: |
|
|
|
10
antibiotics
|
|
| n.(用作复数)抗生素;(用作单数)抗生物质的研究;抗生素,抗菌素( antibiotic的名词复数 ) | |
参考例句: |
|
|
|
11
penicillin
|
|
| n.青霉素,盘尼西林 | |
参考例句: |
|
|
|