our brain

　　interprets these signals and builds up a picture of the outside world. 我们的眼睛和耳朵不停地发射信号，大脑翻译这些信号并构建出外部世界的图画。 catch athletes using could not have known

　　it is

　　that 答案 4.

　　thousands of people who could have benefited from Traditional Chinese Medicine missed out because of ignorance. 很遗憾，由于无知，成千上万的人们错过了用传统中医治疗的机会。 5.Many people doubted Armstrong’s ability to become a top cyclist again but they

　　. 很多人怀疑阿姆斯特朗再次成为顶级车手的能力，但他们本没必要担心的。 It seems a real pity that

　　need not have worried 答案 课文语法填空 Now “cheating” is used not only in exams but also in sports or games.When 1.

　　(refer) to “cheating” in the games，we come 2.

　　the issue of performance­-enhancing drugs. The drugs are originally developed to help people with illnesses，but now they also create supreme athletes 3.

　　(make) them faster and stronger than is normal for human beings.Taking these drugs is known as “doping”，4.

　　can cause serious health problems in later life for those who abuse them，but some athletes seek to achieve beyond their 5.

　　(nature) limits and are prepared referring across making which natural 答案 to cheat to

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