Unit 7 To Your Good Health教學案
27. what does the majority of the americans have in terms of wealth?
a. their income and savings.
b. everything they own in their homes.
c. actually, they have no wealth at all.
d. their house, cars and small amounts of savings.
28. what is the percentage of wealth that is in the hands of most americans?
a. more than 25%. b. less than 25%.
c. more than 75%. d. less than 20%.
29. why is economic inequality still great in the us in spite of the economic growth?
a. because the proportion of income received by the rich and the poor remains almost the same as in 1917.
b. because the economic growth has widened the gap of the family income between the rich and the poor.
c. because income in the us is still concentrated in the hands of the richest 10% of american families.
d. because some americans made great fortunes during the second world war.
30. what can we learn from comparison of the two poverty lines in the last paragraph?
a. the poverty line of 1918 is more favorable to the poor than that of 1981.
b. the 1981 line didn't leave much to the poor.
c. there were more americans who were officially poor by the 1981 line.
d. there were more americans who were officially poor by the 1918 line.
31. from the last two sentences we can see that 1981 government's poverty line .
a. was of no good for the poor
b. was not put into operation then
c. was officially approved
d. was not helpful to the poor
b
you can not see any object unless light from that object gets into your eyes. some of the things you see give off light of their own. the sun, the stars, a lighted lamp are examples that can be seen by their own light. such things are luminous. most of the things you see are not giving off light of their own. they are simply reflecting light that falls on them from the sun or some other luminous body. the moon, for example, does not give off any light of its own. it is nonluminous. you see it because sunlight falls on it and some of it reflects in our direction. so moonlight is only second hand sunlight.
when you look at a book, it sends to your eyes some of the light which falls on it, and you see the book. if light could be kept out from where you are so that there would be no light for the book to reflect, then you could not see the book even with your eyes wide open.