1、1. The passage mainly talks about_.A. the worlds food problemB. the development in biotechC. the genetically modified foodsD. the way to solve food shortages2. According to the passage, GM foods_.A. will replace naturally grown foodsB. are far better than naturally grown foodsC. may help to solve th
2、e problem of poor nutritionD. can cause serious trouble in developing countries3. The underlined sentence “The genetic genie is out of the bottle.” in Paragraph 2 probably means that_.A. GM foods are available everywhereB. the technology in producing GM foods is advancedC. genetic technology may hav
3、e uncontrollable powersD. genetic technology has come out of laboratories into markets4. Whats the writers attitude towards GM foods?A. Enthusiastic. B. Cautious.C. Disapproving. D. Unbelievable.Passage 2Food experts say washing could spread the germs on your turkey in the kitchen sink or nearby foo
4、d. But its been a challenge trying to convince cooks to stop rinsing(冲洗) off raw poultry. Germs that can make people sick are common in the guts of healthy poultry and are legally allowed to be on raw turkey and chicken. The assumption is that nobody eats their poultry raw, and that thorough cooking
5、 will kill the bacteria.The do-not-wash raw poultry advice from the USDA is relatively new and perhaps hasnt caught on because it goes against the common belief that washing makes things clean, said Chapman. Benjamin Chapman, a study author and food safety expert at North Carolina State University,
6、said the instinct to wash raw poultry goes back at least decades when people relied more on visual clues to spot problems with poultry. Meanwhile, washing hands and surfaces are also important.But food preparation is a complicated act, and germs from poultry can be spread even if its not washed, esp
7、ecially when birds are removed from packaging.The USDA-funded study stresses that point. Researchers sprayed raw chicken with a harmless strain of E. coli (大肠杆菌) and watched volunteer cooks at test kitchens. Among those who washed their raw chicken, about a quarter ended up spreading the bacteria to
8、 their lettuce. But even some of those who did not rinse the chicken got germs on the lettuce. And there are other opportunities for germs to survive on turkeys: melting and cooking.To ensure a bird is thoroughly cooked, they say to use a thermometer to check that the deepest and thickest parts of i
9、t have reached 165 degrees. Even after the meal is cooked, you arent out of the danger zone. To keep turkeys and other leftovers safe, experts say they should be refrigerated after two hours.1. People dont accept USDAs advice because _.A. the advice is relatively new.B. cooks clean the turkey before
10、 cooking it.C. cleaning seems more trustworthy.D. heat can kill most germs and no one eats raw food.2. What can be concluded from Paragraph 4?A. Food packages carry germs.B. Germs from a turkey can be spread whether it is washed or not.C. Hands and surfaces are easy to get E coli.D. Multiple methods
11、 should be applied to food to get rid of germs.3. Which way may help to cook a turkey safely?A. Rinse off the turkey before it is heated.B. Keep the turkey away from the lettuce and refrigerator.C. Wash hands and packages before taking out the turkey.D. Use a thermometer to check the temperature of
12、the turkey.4. From which section of a magazine is the text probably taken?A. Cooking.B. Technology.C. Science.D. Medicine.Passage 3You have just won five million yuan in a lottery (彩票)how would you spend it? Before you know it, ten minutes had gone on daydreaming. There is a time and a place for day
13、dreaming, but we dont have much control over that. Isnt it worrying that an estimated 30 to 50 percent of our waking time is spent daydreaming? What if your dentist is having that lottery daydream while removing your rotten tooth?Some studies suggest daydreaming makes us unhappy because we are not f
14、ocusing on what is around us but are instead thinking about the past or future. However, a recent study published in the journal Neuropsychologica finds that mind-wandering can be of benefit to us. The researchers measured the brain patterns of more than 100 people using an MRI (核磁共振成像) scanner. Thi
15、s data was compared with tests on creative ability and a questionnaire on how much their minds usually wandered. Those whose minds wandered the most scored higher in creative ability tests and had more efficient brain systems measured in the MRI machine. Being efficient at mind-wandering means you c
16、an zone out and then naturally tune back in without missing any important point or step. Christine Godwin, the lead author of the latest study from the Georgia Institute of Technology, says that if you are focusing on difficult tasks, your performance will drop if your mind wanders, But when tasks a
17、re easy, people who have high cognitive ability can let their minds wander because it does not affect their performance. You maybe thinking about upcoming goals or problem-solving. These are some of the positive sides to mind-wandering. Mind-wandering can vary between being more practical or more em
18、otional. What mind-wandering seems to be best at, researchers say, is coming up with new solutions to old problems. So, its not always a waste of time!1. The first paragraph serves as a(n) _ . A. explanation B. introductionC. comment D. background2. The study published in Neuropsychologica shows tha
19、t _ . A. daydreaming makes us unhappyB. we are focusing on the past or futureC. mind-wandering is related to creative abilityD. MRI scanner is helpful in measuring the brain patterns3. What does the underlined paragraph 3 mean? _ A. Get distracted B. Focus onC. Be affected D. Have control4. What is
20、the main idea of the passage?A. Mind-wandering might be dangerousB. Daydreaming might bring benefitsC. Mind-wandering is not a waste of timeD. Daydreaming is hard to be controlledPassage 4Aaron Fotheringham has been an amazing person with backflips(后空翻) and other skateboarding tricks throughout his
21、teens. And his famous backflip has won worldwide notice in the form of Record. Why did his particular backflip earn such a reputation? Aaron was the first person to successfully perform a backflip in a wheelchair. Aaron was born ill He has been in a wheelchair since the age of 8. Since then, he has
22、even developed a new extreme sport in which wheelchair-boundathletes use their chairs like skateboards or bikes to do tricks. Now Aarons friends call him Wheelz: and he says its huge praise. Though Aaron makes his stunts(特技表演) look easy, doing tricks in a wheelchair is very different from using a sk
23、ateboard or bike. Its a completely different skill set. If a skateboarder goes into a backflip like Aarons and doesnt start out with enough rotation(旋转). he or she can bend his or her body to speed up. This allows a skateboarder to make complete rotation in time for a successful landing. But Aaron c
24、ant bend his body any more than it is already. That means Aaron has to have everything perfect before going into a backflip. He needs to launch himself to just the right height. If he doesnt, he could fall on the ground completely. My rotation is so quick that I dont have much time to think, says Aaron. Aarons stunts take a lot of practice. He tries to make it to the skate park every day to work on his backflip and try out new tricks. Even though hes an excellent athlete, Aaron doesnt always land his stunts perfectly. But Aaron says he doesnt let bad
copyright@ 2008-2022 冰豆网网站版权所有
经营许可证编号:鄂ICP备2022015515号-1