题型：阅读理解 题类：常考题 难易度：普通
山西省运城市夏县中学2018届高三上学期英语第一次月考试卷
Our planet is home to about seven billion people. Since the 1990s, population experts have predicted the number would grow to nine billion before it begins to slow down and possibly decrease.
But a new report predicts the world's population is likely to increase to almost 11 billion by 2100. Based on the most modem statistical tools, the new report makes use of government records and considers expert predictions, including death rates, birthrates and international migration, or people moving across borders. The report says during the rest of this century, Africa's population will grow from about 3.5 billion to 5.1 billion over the next 85 years.
John is director of the United Nations Population Division. He says that in the past, researchers thought population growth in Africa would be similar to that of other areas. They expected slower growth rates as birth control use became more widespread. But he says those ideas were wrong.
“The level of contraception use has continued to increase but slowly — more slowly than expected, and birthrate therefore has been falling less rapidly than expected, and the population therefore continues to grow somewhat more rapidly than we expected.
The new findings are based on a joint research project of the United Nations and the University of Washington,
The researchers believe the population of Asia will reach five billion by 2050. That is up from the current 4.4 billion. And then begin decline. The researchers also believe that North America, Europe, Latin America and the Caribbean area will have a total population of below one billion.
John says the pressure of feeding the rising population is likely to be less than that might be expected.
“The relatively good news is that the world has been winning the race between population growth and food production. If you look back historically over the last 50 years, certainly for the world as a whole and for many, most individual countries and regions, the increase in food production has outpaced the increase of population.”
Ways to sleep smarter
Studies show that poor sleep influences people to make good decisions, concentrate on tasks or even manage a friendly mood(情绪) at work. {#blank#}1{#/blank#} Today we've got our top favorite sleep tips and facts.
Set a regular bedtime
{#blank#}2{#/blank#} Choose a time when you normally feel tired. Try not to break this routine(惯例) on weekends when you will probably stay up late. If you want to change your bedtime, make the change gradually, such as 15 minutes earlier or later each day.
Eat the right food
Some foods are more helpful to a better night's sleep than others. {#blank#}3{#/blank#} Others like bananas, potatoes, and whole-wheat bread are also helpful.
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Exercising provides lots of good health benefits(好处). A good night's sleep is one of them. But make sure you exercise in the morning or afternoon. The National Sleep Foundation reports that exercise in the morning or afternoon can help deepen sleep. However, those who worked out in the evening hours saw little or no improvement in their sleep.
Reduce(减少) screen time before bed
{#blank#}5{#/blank#} A recent study shows that people who use electronic media(媒体) just before bedtime report lower-quality sleep even when they get as much sleep as those who don't.
A. Avoid the alarm clock. B. Exercise to improve sleep. C. Try to solve problems in your sleep. D. Go to bed at the same time every night. E. There are many ways to increase the quality of your sleep. F. Everybody knows that warm milk helps people sleep better. G. Stop watching TV just before bedtime and you'll sleep better. |
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