(练习)课时分层作业7 Unit 3 The world Online -【提分教练】2023-2024学年新教材高中英语必修第三册(译林版2020)

课时分层作业(七) Ⅰ.单词拼写 1．Adam pressed a button(按钮) and waited for the lift. 2．You can use milk in place of cream in this recipe(食谱). 3．I was amazed at the extent (程度，范围)of his knowledge. 4．She won the election by a clear majority(多数票). 5．Money can be exchanged for goods (商品)or services. 6．The president will deliver (发表)a speech about schools. 7．The school has established(确定，建立) a successful relationship with the local community. 8．She made helpful comments (评论)on my work. 9．As far as I'm aware(知道)，nobody has done anything about it. 10．Will the software (软件)run on my machine? Ⅱ.阅读理解 A In a world where nearly 6 million fingerprint records of government employees are stolen in one computer hack(非法入侵)，and where millions of people are victims of identity theft every year，the next step in cybersecurity may well be mapping your brain. Researchers at Binghamton University，State University of New York are working on a biometric(生物特征识别的) system that records how your brain reacts to certain images.With a little more polishing，the scientists' brainchild could become the way you get into a safe deposit box，your office or past scanners at the airport.It could replace the password for your online banking，your email or your social media accounts. They started their project by measuring the brain waves of 30 subjects.The subjects were fitted with a cap that had 30 electrodes(电极) attached to it，and then shown various images and symbols—celebrity faces，words，pictures of food—on a computer screen in 200­millisecond bursts.The brain's reaction was recorded. The idea is that every time a person needs to use a “password”，he or she goes through the same procedure，and the results are matched with their first­time reaction.If the“brainprint” is compromised—like what happened with the fingerprint records—then the system is merely reset by running another set of images and collecting a different set of brain waves.“Even if that was stolen，you could just cancel it and record one to something else，”