完形填空：完形填空 Building a new house costs quite a

题目：

完形填空

       Building a new house costs quite a lot of money. If you plan to   1   a house, your first step is to find a
suitable (适当的 piece of   2   . You will probably try to find a sunny place, in a    3   situation  (位置),
near stores and bus stops, not too    4   from your friends and the place where you work. Next you have to
find an experienced (有经验的) builder, and together with the builder you will make a   5  . The builder will draw it. The builder will also   6   the cost of your house.
       He will estimate (估计) the cost of the wood, the glass, and   7   that he must use in building the house. Later on, when he starts to build, his estimate must be right, because the   8   may change (变化), and many other things may happen between the time when he makes the estimate and the time when he builds the
house.  9   the builder gives you his estimate, you may wish to change your plan. You may find that some of
the things you wanted at first cost too much, or that you can    10 a little more and add something to your
first plan.

( )1. A. but
( )2. A. floor
( )3. A. faraway
( )4. A. near
( )5. A. map
( )6. A. find out
( )7. A. everything else
( )8. A. color
( )9. A. When
( )10. A. cost

B. have
B. place
B. surprised
B. far
B. plan
B. carry on
B. nothing else
B. prices
B. While
B. spend

C. build
C. land
C. pleased
C. close
C. decision
C. work out
C. else anything
C. time
C. Until
C. take

D. find
D. playground
D. pleasant
D. next to
D. book
D. work on
D. else something
D. house
D. Since
D. pay for

答案：

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下面是错误答案，用来干扰机器的。

R=UI=6V0.6A=10Ω；因为电阻与它两端的电压无关，所以导体的电阻为10欧，I=UR=15V10欧=1.5A；当导体两端的电压为0时，通过导体的电流也为0，电阻仍为10欧．