牛津译林版高中英语模块7 Unit 2 Fit for life Period 5 课件 2

1、Unit 2 Fit for life Period 5 课件 2Unit 2Unit 2Section Section Step Step 1 1Step Step 2 2Step Step 3 3Step Step 4 4Step Step 5 51How come there has been debate about vaccines?2What do you think Dr Gary Goldbaums opinion is? Vaccines, once called the “savior of children， now cause a fierce debate often

2、 found on political talk shows. Questions over the safety of vaccines came into the mainstream in the late 1990s, caused by international debate over a claimed connection between a vaccine and autism (自闭性自闭性) Actress Jenny McCarthy became an advocate for the cause, blaming her own sons autism on the

3、 vaccine. The movement quickly gained advocacy from parents who wanted to protect their children from a developmental disorder for which there is still no known cause. Since 1997, theres been a worldwide decline in the number of school children from kindergarten through high school who are fully vac

4、cinated. In Washington state, a lot of parents refused vaccinations for their kindergartenage children. This meant 6.2 percent of these children were missing one or more immunizations (免疫免疫) in the 202110 school year, according to the Federal Centers for Disease Control and Prevention. No vaccine is

5、 100 percent effective. But vaccinating creates a firewall against the spread of contagious diseases. “This isnt about protecting one child; its about protecting the entire community， said Dr Gary Goldbaum, health officer for the Snohomish Health District. “Our point of view is that immunizations ar

6、e one of the top medical achievements of all time， he said. “They work really well at preventing illness and diseases. “Nationally, more than 10 million vaccines are given each year to children less than one year old. The number of vaccinations for children now at 16 is the largest its ever been， he

7、 said. At some hospital visits, children can get as many as five or six vaccines. Stephens said in his 26 years as a childrens doctor he has never seen a child has a reaction to an immunization more serious than sore arms and shortterm fever. “I think parents underestimate (低估低估) the severity of the

8、 disease and overestimate the severity of the vaccination， he said.Fill in the blanks according to the following pictures.1.A is a person who prepares and sells medicine.chemist2.A is a person who takes care of peoples teeth.dentist.Answer the following questions.1What do people do when they feel il

9、l? 2. What will happen if they take the wrong medicine? 3Do you know their English names?They may take medicine.They may not get better or even get worse.(1) aspirin(2) penicillinScan the text and choose the best answers.1Whats mainly discussed in this passage?AFamous doctors.BHow penicillin and asp

10、irin were invented.CTwo important medicines Aspirin and Penicillin.DHow to keep healthy.答案：答案：C2Which of the following is considered to be the time when aspirin was invented?A3,500 years ago.B2,500 years ago.C1897. D1899. 答案：答案：C3Which of the following cant aspirin be used for? AKeeping quiet. BPain

11、killing. CCuring diabetes. DReducing heart attacks. 答案：答案：A4Which of the following is TRUE?APenicillin can keep people healthy by thinning their blood.BAspirin can save lives by killing bacteria.CAspirin was discovered by accident.DPenicillin was discovered by chance.答案：答案：D.Read the text carefully

12、and decide whether the following statements are true (T) or false (F)1Aspirin was invented by the Greek physician Hippocrates in 1897. ( )2Aspirin has proved vital for reducing fever and helping stop pain. ( )FT3Penicillin can reduce blood sugar levels and, therefore, help people with diabetes. ( )4

13、Fleming thought the mould might be used to treat illnesses caused by bacteria. ( )5Due to the widespread use of penicillin, many lives were saved during World War . ( )FTF.Read the text again and fill in the form.Two lifesaving medicinesNameInvention & DiscoveryMedical 1 AspirinNearly 3,500 year

14、s ago, people 2. on leaves or drank a kind of tea made from leaves of a particular plant.Hippocrates made a 3 from a tree bark.In 1897 Hoffmann produced aspirin. Two years later, the company he worked for began distributing the medicine in 4. form to physicians to use with patients.In 1900, aspirin

15、was sold in shops in the form of 5. .Reducing fever and helping stop painReducing the risk of 6. attacks and preventing a strokeReducing the risk of some cancers by 40 percentReducing 7. sugar levelseffectschewedjuicepowderhearttabletsbloodPenicillinIt was discovered by Alexander Fleming in 8. .Fleming found the mould had 9. the bacteria surrounding it.Two other scientists succeeded in purifying it and it was produced in large 10. .Treating illnesses caused by bacteria and wounds1928killedquantitiesopen upthattrialstabletsvitalbutoutstandardin large quantitieswidespreadDo you think new