CAE UOE p1+2 (exam essentials 1 test 1)

Our biological clocks govern almost every (0 ) ........ of our lives.

• event

• aspect

• field

• division

Our sensitivity to stimuli ( 1) ........ over the course of the day, and our ability to perform certain functions is subject to fluctuations.

• modifies

• ranges

• varies

• wavers

The middle of the day, for example, is the

(2 ) ........ time for tasks such as making decisions.

• peak

• summit

• maximum

• optimum

Anything that demands physical co-ordination, on the other hand, is best attempted in the early evening. What is (3) ........ ,

• more

• else

• different

• besides

there is a dramatic drop in performance if these activities are (4 ) ........ out

at other times.

• made

• gone

• carried

• set

The risk of accident in a factory, for example, is 20% higher during the night (5 ) .........

• labour

• work

• duty

• shift

Primitive humans lived in tune with the daily cycle of light and dark. Today, we are ( 6 ) ........ convinced that we can impose schedules on our lives at will.

• powerfully

• firmly

• steadily

• highly

Sooner or later, however, we pay a (7 ) ........ for ignoring our natural rhythms.

• price

• fine

• fee

• cost

A good example is jet lag, caused when we confuse our body's biological clocks by (8 ) ........ several time zones. Jet lag often lasts for several days and can badly affect our decision making ability.

• landing

• penetrating

• crossing

• travelling

The last 20 years have seen a dramatic increase (0) ........ the numbers of visitors to Antarctica.