题目内容
19．The number of guests invited to the party______ fifty，but a number of them______ absent．（ ）| A． | were；was | B． | were；were | C． | was；were | D． | was；was |
分析 邀请参加聚会的客人数量有50个，但大部分都缺席．
解答 答案：C
The number of guests 意为"…的数量"做主语时，谓语需用单数，a number of 意为"大量的"做主语时，谓语需用复数，所以答案为C．
点评 考查主谓一致，The number of，a number of做主语时，谓语选择需熟练掌握．
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Drinking pure，alkaline water is important to great health．I believe that most of the disease （42）Gpeople in the Western world couldn't occur in a PH-balanced body．
Most tap water is highly acidic due to the （43）Iof various chemicals．Don't assume that bottled water is （44）Aa better choice than tap water．Most bottled water is of （45）Jquality and largely made up of tap water plus the off-gassing of chemicals from the plastic in which it is stored．Most bottled water is extremely acidic，making it harmful to your health and the health of the planet，too．
Water filtration（过滤） is a necessary part of our modern life．There are many water filtration systems that get rid of some of the harmful chemicals，but few systems that also （46）Kthe PH of water to increase its healing powers．Every company （47）Bthat its systems are the best．I've spent some time trying to find affordable water filtration systems．
Every cell in your body depends on enough water to ensure proper （48）C．It's important to drink between 12 and 20 cups of alkaline water each day．Every person has individual needs but if you are smaller than （49）Eand in excellent health，your water needs will obviously be lower than someone who is fat and in poor health．As your health problems improve and you lose any extra weight，you can reduce your water （50）Fto 12 cups each day．
| A．necessarily B．claims C．functioning D．measures E．average F．consumption G．bothering H．obviously I．addition J．questionable K．raise |
Drinking pure，alkaline water is important to great health．I believe that most of the disease （42）Gpeople in the Western world couldn't occur in a PH-balanced body．
Most tap water is highly acidic due to the （43）Iof various chemicals．Don't assume that bottled water is （44）Aa better choice than tap water．Most bottled water is of （45）Jquality and largely made up of tap water plus the off-gassing of chemicals from the plastic in which it is stored．Most bottled water is extremely acidic，making it harmful to your health and the health of the planet，too．
Water filtration（过滤） is a necessary part of our modern life．There are many water filtration systems that get rid of some of the harmful chemicals，but few systems that also （46）Kthe PH of water to increase its healing powers．Every company （47）Bthat its systems are the best．I've spent some time trying to find affordable water filtration systems．
Every cell in your body depends on enough water to ensure proper （48）C．It's important to drink between 12 and 20 cups of alkaline water each day．Every person has individual needs but if you are smaller than （49）Eand in excellent health，your water needs will obviously be lower than someone who is fat and in poor health．As your health problems improve and you lose any extra weight，you can reduce your water （50）Fto 12 cups each day．
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