Why Batteries Wear Out

B2 First · Word Formation · Cambridge Ready original exercise

For questions 1–8, read the text below. Use the word given in capitals at the end of some of the lines to form a word that fits in the gap in the same line. There is an example at the beginning (0).

FAULT

ABLE

QUICK

EFFECT

COMPLETE

HARM

PROTECT

FORTUNATE

Most of us have noticed that a phone which once lasted all day (0) ___ needs charging by lunchtime. This does not mean that the phone is (1) ___ . All rechargeable batteries slowly lose their (2) ___ to hold a charge, and the process happens more (3) ___ when they get hot. There are, however, several (4) ___ ways to slow it down. Experts recommend charging little and often, rather than letting the battery run (5) ___ flat every time. Heat is the biggest enemy, so leaving a phone in a parked car on a summer afternoon is particularly (6) ___ . Charging it under a pillow overnight is not a good idea either, as the warmth has nowhere to go. Many newer phones also include a setting that offers extra (7) ___ by stopping the charge before the battery is full. (8) ___ , if a battery does wear out, replacing it is usually far cheaper than buying a whole new phone.

Why Batteries Wear Out

EVENTUAL

Available as a free printable PDF worksheet with an optional answer key.

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