种群（population）
第1题：
which of the following statements is not true about maori population?
A. Maori population makes up nearly one-seventh of New Zealand s total population.
B. Maori population is younger than the total population.
C. Non-Maori women tend to have children earlier than Maori women.
D. Maori women tend to have more children than non-Maori women.
第2题：
A.种群的增长
B.种群的规模
C.种群的周期波动
D.种群数量下降
第3题：
What is the 'biggest city in the world? That is, (21) city has the largest population? This seems like (22) question to answer, but actually it isn't.
It's actually rather difficult to say which cities (23) the largest. There are two reasons for this difficulty. First of all, it isn't easy to determine a city's boundaries, that is, where a city ends. Nowadays, nearly all cities have a large (24) area around them. So when we talk about the population of a city, we often mean the population of the whole metropolitan area around the city. That means that it's difficult to determine what the population of a city is because it's difficult to define what a city is.
The second reason that it is difficult to 25 the population of different cities is this: it is almost impossible to get (26) about the population of all cities for the same year. For example, we might get an estimate of New York's population in 1979 and an (27) of Mexico City's population in 1981. So we real ly can't compare the numbers because the information is for (28) different years. And the population of cities changes rather quickly, especially in some cases. For example, the population of Jakarta, Indonesia, may increase by 5% each year, so the population figure will change rather quickly.
So we can say that these are our two (29) for comparing the populations of cities: one, it's difficult to determine the (30) of a city, and two, it is difficult to get accurate information.
21. A. what
B. which
C. where
D. how
首先判断此处缺少的是一个定语。参考上文及该句中that is这一短语可知，此处应填which一词。
第4题：
The population of the earth（）increasing fast. One third of the population here（）workers.
Ais;are
Bis;hasbeen
Care;is
Dis;was
第5题：
Which of the following statements is NOT true?
A) World population is increasing at a rate of 150 per minute.
B) Lower death rates also contribute to world population growth.
C) The population of Columbia has been doubling every year for 21 years.
D) The United States is usually doubling its population about every 87 years.
第6题：
A.种群1杀死种群2
B.种群1吃掉种群1
C.种群1吃掉种群2一些个体
D.种群1吃掉种群2全部个体
第7题：
根据种群的发展趋势，种群的年龄结构可分为________、稳定型种群和衰退型种群。
第8题：
Population experts tell us that by the year 2025, the population in cities in developing nations will increase to five times its present size.()
第9题：
第10题：
The population of the earth（）increasing fast. One third of the population here（）workers.