G M FOODS
Genetically modified foods (转基因食品） [dʒɪ'netɪklɪ]
GMT TIPS
WHEN WAS THE GMT USED?
In 1974, A scientist named Cohen used the genetically modified technology first, which put the [penɪ'sɪlɪn] Penicillin-resistant gene(抗青霉素基因） into coli [‘kəʊlaɪstudy to genetically modified technology.
Irreparable不能挽回的 harm to other organisms Genes transferring to non-target species
Benefits to human health
Sufficient food and highly nutrition Possible pest害虫 and disease resistance
02
BUSINESS SECTION
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Side A
Guarantee of food supply
Tolerance to cold,heat and drought Tolerance to herbicides[‘hɜːbɪsaɪd] 除草剂 and insecticides[ɪn‘sektɪsaɪd] 杀虫剂.
Side B
Environmental hazards['hæzəd]
GM Plants
In 1990S, GM foods were
first put on the market.
Plants were the most
common GM foods. Such as corn,
soybean, canola[kə'nəʊlə] and cotton .
Advantages and disadvantages
VS
Supportive
GM foods are a blessing to the soaring world population.
opposed
GM foods pose a threat to the environment and human health.
Advantages and disadvantages
Human health risks
Allergenicity and cancer risks Unknown effects on human health
THANK YOU ！
THE GREAT ACHIEVEMENT
In 1978, Daniel Nathans and Werner Arber won the Nobel Prize in medicine, who devoted themselves to the research of genetically modified technology.
THE CATEGORY :
Acording to diffirent objects, these fall into GM Plants、 GM animals and Microbial‘s [maɪ’krəʊbɪəl] genome [‘dʒiːnəʊm] rearrangement [’riːə‘reɪndʒmənt] (微生物重组）.