更多"The hunter-gatherer tribes that tod"的相关试题:
[简答题] The hunter-gatherer tribes that today live as our prehistoric human (1) __________
ancestors consume primarily a vegetable diet supplementing with animal (2) __________
foods. An analysis of 58 societies of modern hunter-gatherers, including the
Kung of southern Africa, revealed that one-half emphasize gathering plant
foods, one-third concentrate on fishing, and only one-sixth are primarily
hunters. Overall, two-thirds and more of the hunter-gatherer’’s calories come (3) __________
from plants. Detailed studies of the Kung by the food scientists at the University
of London, showed that gathering is a more productive source of
food than is hunting. An hour of hunting yields in average about 100 edible (4) __________
calories, as an hour of gathering produces 240. (5) __________
Plant foods provide for 60 percent to 80 percent of the Kung diet, (6) __________
and no one goes hungry when the hunt fails, interestingly, if they esc
[填空题]Today, our English teacher asked us to write a()(compose).
[单项选择]
Lecturer
Today, in our series of lectures on human language, we are going to be looking at the way in which children acquire language. The study of how people learn to speak has proved to be one of the most fascinating, important and complex branches of language study. So let’s look at these three features in turn. Firstly--why is it fascinating This stems from the natural interest people take in the developing abilities of young children. People are fascinated by the way in which children learn, particularly their own children!
Secondly, it is important to study how we acquire our first language, because the study of child language can lead us to a greater understanding of language as a whole. The third point is that it’s a complex study because of the enormous difficulties that are encountered by researchers as soon as they attempt to explain language development, especially in the very young child.
In today’s lecture we will cover a nu
A. Because people have an interest in children’s learning.
B. Because it leads to greater understanding of language.
C. Because it encourages the researchers to work hard.
D. Because it is good to children’s health.
[单项选择](一)
Today our knowledge of food and what it does for our bodies are far more advanced than that of the old times. Now we know about vitamins and how each kind of vitamin helps in the growth of a particular, the food that we eat will take care of our body and so there is no need to take any kinds of vitamins unless our doctor tells us that our bodies are short of something which can be supplied by them.
Generally speaking, everything we eat does some good to our body. But if we eat too much of one kind of food and pay too little attention to others, we may have too much of one kind and not enough of others. Then we may be in trouble.
We are often told that we must eat some meat at each meal in order to get the necessary proteins. That is only partly true, for proteins are not found only in meat. We can also get them from some vegetables.
The best advice about what to eat is that we should eat all kinds of food but never too much of any.
One may take certain vitamins whe
A. one wants to encourage the growth of a particular part of the body
B. one eats all kinds of food
C. one’s health is harmed by the lack of certain things which can be supplied by vitamins
D. one eats well and properly______
[填空题]What must be provided as people live longer today than before