輕工中學(xué)新目標9年級英語Units1-4單元測試題(2)
knowing when and when not to 42 capital letters is just one 43 of online etiquette(禮儀).
don’t do anything online that you wouldn’t do in 44 life. don’t use information that someone else has written, and 45 it’s yours. do share(分享) your knowledge of the internet with others.
36. a. reading
37. a. some
38. a. but
39. a. start
40. a. writer
41. a. hardly
42. a. copy
43. a. mistake
44. a. digital
45. a. speak b. typing
b. all
b. or
b. begin
b. worker
b. carefully
b. believe
b. advice
b. real
b. tell c. watching
c. any
c. and
c. forget
c. nurse
c. silently
c. double
c. example
c. quiet
c. talk d. leaving
d. none
d. so
d. remember
d. student
d. usually
d. use
d. game
d. healthy
d. say
ⅲ、閱讀理解（共20小題，每小題2分；滿分40分）
閱讀下列短文，從每小題所給從每題所給的a、b、c、d四個選項中選出最佳選項。
a
fuel for tomorrow
can cars run without gasoline(汽油)？
a fuel(燃料) is a substance(物質(zhì)) that can be burned to make energy. today, gasoline is used as a fuel for cars and planes. tomorrow, we may use different fuels.
one idea is to use old fuels in new ways. methane(甲烷)，also called natural gas, is an old fuel. it is used in our stoves to cook our food. it is also used to make hot water and to heat our homes. methane is not as heavy as gasoline, and it is safer. it does not explode(爆炸) easily. also, when methane burns, very little is left. the air stays clean.
there are problems, however. methane gas takes up a lot of space, cars and airplanes would need bigger fuel tanks(大容器). but scientists think they can solve the space problem. they hope that safe, clean methane will be a fuel for our cars of tomorrow.
46. the word fuel is used for anything that .
a. can be burned to make energy
b. is put into a tank
c. is expensive to bum
47. according to the story, methane is than gasoline.
a. dirtier b. safer c. heavier
48. according to the passage, one of the problems with using methane for fuel is that the gas .
a. takes up a lot of space b. is hard to find c. does not burn very easily
49. in the passage, methane is called an old fuel because it has been .
a. used often before
b. used in cars for many years
c. stored for a long time