18.You've heard it repeatedly:Make sure you drink at least eight glasses of water per day.The key words are"at least",because,unless you are a child,you need more water than that.The rule is,for every 50pounds of body weight you carry,drink one quart of bottled or filtered (過濾的) water per day.The average person weighs 150pounds,so they should drink three quarts per day.A 200pounds person should drink a full gallon per day.Athletes should drink even more than that.Follow these and you've adopted one of the most important health habits.
Our bodies are mostly water,and water is essential to our every function.Drink the appropriate amount,and everything is much more likely to function at the best levels.If you don't drink enough water,over the short term you will experience tiredness,dry skin,headaches and constipation (便秘); over the longer term,every body function will degrade more quickly.It really is as simple as that.
Things get a bit more complicated in what type of water to drink.Bottled water and filtered water are both good options.Do not drink tap water or distilled water (蒸餾水).Bottled water should be bottled in clear glass containers,not the plastic containers that transfer far too many chemicals into the water.Filtered water can be obtained through low-cost filters.
Tap water should be avoided because it contains chlorine (氯) and may contain fluoride (氟化物),which is poisonous and can have terrible consequences for the body.Distilled water should also be avoided because it can burn up your body of necessary minerals.It has been tied to hair loss,which is often associated with certain mineral lack.
Finally,drink water at room temperature if possible,as ice-cold water can harm your stomach.
21.What's the meaning of the underlined word"degrade"?B
A.Improve.
B.Reduce..
C.Strengthen
D.Recover.
22.What kinds of water are proper for drinking?C
A.Tap water and bottled water.
B.Tap water and distilled water.
C.Bottled water and filtered water.
D.Distilled water and filtered water.
23.What's the main reason that distilled water isn't recommended to drink?A
A.It leads the body to lack certain minerals.
B.It isn't clean enough to drink.
C.It contains too many chemicals.
D.It contains fluoride.
分析 本文屬于說明文閱讀,作者通過這篇文章主要向我們描述了水對(duì)于身體是很重要的,如何選擇適合人飲用的水也很重要,瓶裝水和過濾水適合飲用.
解答 21.B.詞義猜測(cè)題.根據(jù)第二段 over the longer term,every body function will degrade more quickly.It really is as simple as that長(zhǎng)期下去,各項(xiàng)身體機(jī)能下降越快;可知意為下降;故選B.
22.C.細(xì)節(jié)理解題.根據(jù)第三段Bottled water and filtered water are both good options可知瓶裝水和過濾水適合飲用;故選C.
23.A.細(xì)節(jié)理解題.根據(jù)第四段Distilled water should also be avoided because it can burn up your body of necessary minerals可知不推薦飲用蒸餾水的主要原因是它導(dǎo)致身體缺乏某些礦物質(zhì);故選A.
點(diǎn)評(píng) 本文是一個(gè)科教類閱讀,題目涉及多道細(xì)節(jié)理解題,做題時(shí)結(jié)合原文和題目有針對(duì)性的找出相關(guān)語句進(jìn)行仔細(xì)分析,結(jié)合選項(xiàng)選出正確答案.推理判斷題也是要在抓住關(guān)鍵句子的基礎(chǔ)上合理的分析才能得出正確答案,切忌胡亂猜測(cè),一定要做到有理有據(jù).