话题组合训练22 科普知识与现代技术-【给力阅读】中考英语阅读理解与完形填空

给力 初中阅读理解与完形填空 22科普知识与现代技术(Popular science and modern technology) 完形填空 主题：人脑与电脑体裁：说明文难度：★★★★★建议用时：5分钟正确率： /15 What has billions of parts and weighs about 1.4 kilograms?If you guess that it's a minicomputer, think again.The correct answer is "the human brain".Your brain is 1 It allows you to ride a bike, read a book,laugh at a 2 and remember your friend's phone number.And that's just for starters. Your brain 3 controls your emotions,sleep and breath. The amazing brain has been compared to many different 4.Nowadays.people like to compare it to a computer. Computers and brains 5 need energy.Plug()your computer into the wall and then push a button,and it will get the power it needs to 6.Pull the plug and it will 7.Your brain operates in a different way.It gets its energy from the food you eat.8 a computer,your brain has no switch.Even when you are asleep,your brain is active.9 computers and brains are powered by different types of energy,they both use electrical signals()to send information.Computers send electrical signals through wires to control devices.Your brain sends electrical signals through neurons (神经元)to10 your boc. Computers and brains perform many 11 functions.For example,both can store memories.New hardware and software can be installed on computers to perform new tasks.The brain can always 12 new things.Both computers and brains have the 13 to monitor their surroundings and respond to them. The brain,14,is not as easy to repair as a computer.And perhaps the biggest difference between the two is that most computers do not have emotions,dreams 15 thoughts-—some of the most important things that make us be humans. ( )1.A.humorous B.weak C.powerful D.easy ( )2.A.health B.joke C.class D.computer ( )3.A.still B.just C.never D.also )4.A.movies B.stories C.experiences D.objects ( )5.A.both B.either C.all D.neither ( )6.A.walk B.run C.jump D.swim )7.A.write down B.put down C.shut down D.take down ( )8.A.With B.Under C.In D.Unlike ( )9.A.Although B.Since C.Because