以中秋节为主题的作文
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以中秋节为主题的作文
【篇一：关于中秋主题作文】
microeconomics i quiz#1 answer key
fall 2009
10/22(
四
)
i. multiple choice questions (4*15=60%)
1) society faces trade-offs because of
a) government regulations. b) greedy corporations. c) faceless
bureaucrats. d) scarcity. answer: d
2) suppose a market were currently at equilibrium. a rightward
shift of the supply curve would cause a(n)
a) increase in price but a decrease in quantity.b) decrease in
price but an increase in quantity.c) increase in both price and
quantity.d) decrease in both price and : b
3) a competitive equilibrium is described by
a) a price only.b) a quantity only.
c) the excess supply minus the excess demand.d) a price and
a : d
4) if the price of automobiles were to decrease substantially,
the demand curve for public transportation would most likely
a) shift rightward.b) shift leftward.
c) remain unchanged.
d) remain unchanged while quantity demanded would
: b
5) suppose there are 100 identical firms in the rag industry,
and each firm is willing to supply 10 rags at any price. the
market supply curve will be a(n)
a) vertical line where q = 10.b) vertical line where q = 100.c)
vertical line where q = 1000.d) horizontal line where q =
: c
6) suppose the demand curve for a good is downward sloping
and the supply curve is upward sloping. at the market
equilibrium, if demand is more elastic than supply in absolute
value, a $$1 specific tax will
a) raise the price to consumers by 50 cents.
b) raise the price to consumers by less than 50 cents.c) raise
the price to consumers by more than 50 cents.d) raise the
price to consumers by $$1. answer: b
7) if the supply curve for orange juice is estimated to be q = 40
+ 2p, then
a) supply is price elastic at all prices.
b) supply is price inelastic at all prices.
c) supply is elastic only at prices below 20.
d) no general statements about price elasticity of supply can
be : b
8) the above figure shows the market for crude oil. if a
consumer group convinces the government to set a maximum
price of $$2 per barrel, then
a) 300 barrels of crude oil will be sold at $$2.
b) zero barrels of crude oil will be sold.c) zero barrels of crude
oil will be demanded.d) none of the : b
9) if two goods are perfect substitutes, then the indifference
curves for those two goods would be
a) upward-sloping and concave to the origin.
b) downward-sloping and convex to the origin.c) downward
sloping and straight.d) : c
10) if freds marginal rate of substitution of salad for pizza
equals five, then
a) he would give up five pizzas to get the next salad.b) he
would give up five salads to get the next pizza.c) he will eat
five times as much pizza as salad.d) he will eat five times as
much salad as : b
11) sarah has the utility function u(x,y)= x0.5y0.25. when
sarah consumes x=2 and y=6 she has a marginal rate of
substitution of
a) -12b) -1/6c) -6d) -1/12answer: a
12) joes income is $$500, the price of food (f) is $$2, and the
price of shelter (s) is $$100. which of the following bundles is in
joes opportunity set?
a) 50 units of food, five units of shelter
b) 200 units of food, two units of shelterc) 100 units of food,
one unit of shelterd) 150 units of food, three units of
shelteranswer: c
13) if the price of one good increases while the price of the
other good and the consumers income remain unchanged,
what will happen to the budget line?
a) the budget line rotates inward from the intercept on the axis
of the good
that did not change in price.
b) the budget line rotates outward from the intercept on the
axis of the good that did not change in price.
c) the budget line shifts inward without a change in slope.d)
the budget line shifts outward without a change in
:
a
14) max has allocated $$100 toward meats for his barbecue.
his budget line and an indifference map are shown in the
above figure. what is the price of chicken?
a) $$0.80/lb
b) $$1.25/lbc) $$4/lbd) $$5/lbanswer: d
15) max has allocated $$100 toward meats for his barbecue. his
budget line and an indifference map are shown in the above
figure. which of the following best describes maxs preferences?
a) d b eb) d = b = ec) a = b cd) a = b eanswer: d
ii. problem
1.(ch2, ap7) (10%)
suppose the demand for onion ice cream was described by
the equation qd ? 20 ? p , and the supply was described by
qs ? ?40 ? p . what are the equilibrium price and quantity?
show your answer using a graph. answer:
set qs ? qd and solve.
p* ? 30 q* ? ?10
equilibrium quantity is zero, because the demand curve lies
below the supply curve at all
prices where output is positive. see figure 2.4.
figure 2.4
2. (ch3, ap6) (5+5+5+4+4=23%)
for each of the utility functions below, draw a set of
indifference curves showing utility levels u ? 12, u ? 16, and u ?
24. a. u ? xy b.u ? x ? y c. u ? x ? y
is true about the commodities in (b)? (how is their
relationship of substitute?)
e. what about the commodities in (c)? (is there good or bad
commodity? which one is good? and which one is bad? how is
their relationship?)
【篇二：以
“
中秋
”
为话题的作文写法指导】
“
中秋
”
话题作文指导
中秋节是 中华民族的传统佳节，特别是近年来将这个节日定为法定
假日，更为青少年了解传统佳节提供了好的机会 。
1
、
同一个话题，在审题时应注意从不同角度立意，要独出心裁，
写出自己的
真情实感，切不可泛泛地写流水内容，以免让人读来无味。
2
、
要突出特定情境，就要调动各种写作手法，特别是景物的描写，
以
“
月
”
3
、
要以情感人，那么就应该从自我的角度来感受这个节日，以真
情实感来表
现节日的感受，让记忆的浪花传递出中秋的内涵，让情感的笔触描
绘出团圆的深情。
中秋的记忆
凉爽的秋风吹走了夏日的浮躁，让我们尽享天 高云淡风清的熏陶，
让五谷给我们带来丰收的喜悦。沉浸在这秋高气爽之中，我知道，
中秋节快 到了。
我深深的陷入了对中秋佳节的期盼，去年中秋的情景，又浮现在我
的眼前
??
??
夜已深，月正圆，一份感激涌上心头。那是一份亲情，那是一份至
爱。我愿将这份情与这份爱收藏在怀，化作一份动力，去面对人生
的挑战。
中秋的记忆很深很深，同为那份记忆中有爷爷对我的一份激励。
那年中秋
中秋节的夜晚特别的宁静，无聊的我与父母一起漫步在静悄悄 的江
畔，浮躁的心渐渐平静下来，圆圆的月亮在头顶跟随
??
一样的月亮，一样的地点，一样的宁静，使我想起了那一年的中秋。
??
一阵开门声将我拉回了现实，哦
，是爸爸妈妈回来了。我静静地递
上两杯水，看到他们眼中的欣慰，我突然发现我是如此的幸福。是
爷爷跟我说的话让我感受到身边的幸 福。
爷爷啊，月圆之夜，此时的你在天堂做什么呢？
记忆中的红豆沙
又是一个中秋节，又到了阖家欢聚的日子，看着那轮明月，我想起
了儿时的那份月饼。
小时的记忆大都是关于外婆的，仍记得外婆家那张又大又舒服的床，
仍记得外婆那精湛的厨艺， 还有那令我回味多年的红豆沙馅
??