[填空题]It may seem an odd time to worry about savings. This week the National Bureau of Economic Research declared that the world’s, largest economy, America, had been in recession since December last year. The economies of Japan and much of Western Europe have been declining. A rapid, global, private-sector shift to thrift is exactly what the world economy does not need. That’s why governments around the world have been passing hurried measures to try to encourage people to spend more of their incomes.
In some countries, they should. Asians (and Germans too), have been saving their money with excessive enthusiasm. But other countries’ citizens have been putting too little aside for their old age. In America,the household savings ratio (the proportion of disposable income not used for consumption) has been below 2.5% since 1999; in Britain, it has been below 3% in each of the past two years. The Asians’ thrift made the Anglo-Saxons’ extravagance possible. Through their Increasingly sop

[填空题]It may seem an odd time to worry about savings. This week the National Bureau of Economic Research declared that the world’s, largest economy, America, had been in recession since December last year. The economies of Japan and much of Western Europe have been declining. A rapid, global, private-sector shift to thrift is exactly what the world economy does not need. That’s why governments around the world have been passing hurried measures to try to encourage people to spend more of their incomes.
In some countries, they should. Asians (and Germans too), have been saving their money with excessive enthusiasm. But other countries’ citizens have been putting too little aside for their old age. In America,the household savings ratio (the proportion of disposable income not used for consumption) has been below 2.5% since 1999; in Britain, it has been below 3% in each of the past two years. The Asians’ thrift made the Anglo-Saxons’ extravagance possible. Through their Increasingly sop

[填空题]Don’t worry about the time. There is twenty minutes (leave)（）

[填空题]It may seem odd but ice itself sometimes can protect crops from frost! Some growers (11) spray their crops with water on a freezing night. Water freezes quickly on the plant and then a strange thing happens. (12) ice stays wet, it can’t get colder than 32 degrees, a (13) many plants can stand. If the ice ever became entirely frozen and dry, it might drop many degrees lower, ruining the plants. But by continually spraying water on the ice, the growers keep it from going below 32 degrees even if the air is much (14) This may frustrate Jack Frost, but it saves the plants. This strange kind of "ice blanket" works only on plants that are (15) enough to stand the weight of frozen spray.

[填空题] The worry about salt is that it may 【B1】 high blood pressure. Chemically, salt 【B2】 of sodium and chloride ions, both of 【B3】 are common in the human 【B4】 and are important for many physiological and biochemical 【B5】 We not only need salt, we are salt; but too 【B6】 may still be bad for us. Although the idea of a 【B7】 between salt and high blood pressure 【B8】 back to 2000 BC, there is still no scientific 【B9】 as to whether this is so or not. One reason for this 【B10】 to agree is that individual salt intake 【B11】 enormously from day to day, and so reliable measures of intake are hard to come 【B12】 . Those who believe that salt does 【B13】 to high blood pressure point to the high 【B14】 of high blood pressure in countries that eat a very 【B15】 diet. In Japan, for instance, where salted fish is an important part of the diet, high blood pressure and 【B16】 complications are common, 【B17】 among some Amazonian and African tribes, which have a low intake of salt, they ar