A 答案A。【参考译文】每个人都有这个常识:人体是一台精巧的机器。【详细解答】本题需要填入一个用语修饰machine 的形容词delicate(精心的)可以用来修饰machine。precise意为“精确的、准确的”,sensitive意为“灵敏的”,considerate意为“考虑周到的、体谅的”,这三个词用于本题都不太贴切。反馈...
5. This passage mainly tells us ___. A. all the energy is in food B. the human body needs energy C. the number of calories depends on your activity D. we must only eat peanuts to get calories 相关知识点: 试题来源: 解析 1. D 2. C 3. C 4. B 5. C 【分析】这是一篇科普...
The human body is a living machine, and like all machines, it needs oil to supply it with energy. That is the food we eat. But how much do we need to stay healthy? The energy value of food is usually tested by calories(卡路里).A calorie is the number of heat required to raise t...
能量The human body is a living machine, and like all machines, it needs fuel to supply it with energy.This is provided mainly by the food we eat. But how much do we need to stay healthy?The energy value of food is usually measured in calories(卡路里). A calorie is the amount of ...
1 B The human body is an amazing machine. It's tough, and we usually recover from illness or injury on our own, without the help of a doctor. But what happens when we need medical treatment? In the past, some people went to a hospital to see a medical doctor. Others preferred tradi...
根据画线词所在句“Blood vessels in the head tighten to stop the loss of body heat and then relax to let blood flow rise”可知,头部的血管收紧,以阻止身体热 量的流失,由此可知单词 tighten 意为“变紧” 。 43.A 解析:该题为细节理解题。 根据第二个问题下面 “These muscles move food, fluids ...
The human body is a complex machine, and still remains a mystery even after years of medical research. All the organs in the body work by itself, yet together with other organs to ensure that its parent remains healthy. However, there are many diseases and infections that, if not treated ...
The human body is a living machine ,and, like all machines, it needs fuel to supply it with energy. This is provided by the food we eat. But how much do we need to stay healthy? The energy value of food is usually measured in calories. A calorie is the amount of heat required t...
The human body is a complex machine. From the day we were born, our bodies grow and change in response to our diets and habits. The body has many different organ(器官)systems and parts that work together to allow us to breathe, move, see, talk, and digest food all at the same time...
The human body is a living machine, and, like all machines, it needs "fuel" (燃料) to supply it with energy.This is provided by the food we eat.But how much do we need to stay healthy? The energy value of food is usually measured in calories.A calorie is the amount of heat requi...