Structure 句型

5 Falling rods recorded a shock that _____to wake up the scientist. (11.5-6)

a．was not enough strong

b．was strong enough

c．was too strong

d．was not strong enough

6 Instruments of far____ delicacy were needed. (1.8)

a．improved

b．greater

c．better

d．finer

7 Where did the key to that problem____ ? (1.14)

a．laid

b．lied

c．lay

d．lie

8 ______ all was still, the pen drew a straight line. (11.23-4)

a．Provided

b．Suppose

c．Imagine

d．Supposed

Vocabulary 词汇

9 While I write my pen moves, but the paper _____. (1.10)

a．moves yet

b．changes direction

c．remains solid

d．does not

10 It will be found that the weight moves____ slightly. (11.18-19)

a．even

b．unless

c．only

d．except

11 Instruments have been_____ and can be so placed ... (11.28-29)

a．invented

b．described

c．sold

d．discovered

12 The graphic record shows three waves arriving ______ . (11.30-31)

a．in a synchronised fashion

b．almost together

c．irregularly

d．with brief breaks in between

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