is主语是名词单数或者不可数名词;are主语是名词复数;was一般过去时的名词单数或者不可数名词;be原型。百分数词作主语,指代不可数名词或可数的单数名词时,谓语动词应用单数形式。故选:A。【思路点拨】我们的老师说身体的70%是水。【解题思路】考查be用法,需要分析选项中各be动词的意义和用法,根据句子,选择正确答案。
百度试题 结果1 题目Our teacher says almost 70 percent of the body_water.() A. is B. are C. was D. be 相关知识点: 试题来源: 解析 A 反馈 收藏
百度试题 结果1 题目(C)4. -Our teacher says about 70 percent of the body water.-That's true. A. be B. am C. is D. are 相关知识点: 试题来源: 解析 答案见上 反馈 收藏
Drinking too much water___can cause water intoxication (中毒). People should have about eight cups of water everyday. By the time you feel___, your body has lost over 1 percent of its total water amount. If there is no water, we can’t brush our teeth and wash our clothes. If...
of our body is made up of water.(percent;percentage ) 2. What can we do to save water? (else;other) 相关知识点: 试题来源: 解析 1.【答案】percent 【核心短语/词汇】be made up of:由...组成 【翻译】我们的身体70%是由水组成的。 【解析】percentage一般用在这个结构中“The percentage o...
1. 根据上一句“However, a loss of only two percent of this water through dehydration(脱水) during exercise can seriously affect your performance.”可知此处说明运动与表现之间的关系。故选D。 2. 根据下一句“Dehydration also makes your heart beat much faster.”可知此处表示身体过热并不是脱水时面临的...
Did you know that sixty percent of your body weight is water?However,a loss of only two percent of this water through dehydration(脱水)during exercise can significantly affect your performance.The more you sweat,the more your exercise performance declines,unless you drink enough to replace your ...
Body water: In biology, body water is the amount of this inorganic molecule that is present in all tissues and organs of the body, bones, and blood. Water is acquired not only by its direct ingestion, or in the food we eat, but also by its creation as metabolic water. The latter, ...
1.根据第一段“However, a loss of only two percent of this water through dehydration(脱水) during exercise can significantly affect your performance.”可知,在运动过程中失去百分之二的水分,运动表现就会受到显著影响。 2.根据第三段“When we exercise, on the other hand, our thirst mechanism(结构) ...
【题目】Do you know that sixty percent of your body weight is water? However, a loss of only two percent of thiswater through dehydration(脱水) during exercise can significantly affect your performance. The more you sweat,the more your exercise performance declines, unless you drink enough to ...