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基础训练篇（15）

As well as reaching the right audience with the right technique, advertisers must also place their ads in the right medium. Obviously, cost will play __(1)______ big part in this decision.

Television

adverts

are

expensive

to

make

__(2)_____to show. You have to be a big corporation with a big budget to afford television ads. Advertisements in newspapers, on the other hand, are __(3)______cheaper.

As well as worrying about the expense, advertisers must also consider _____(4)_ media are most appropriate for their product and which their target audience is most likely to see or hear. __(5)_______most cars have radios, ads broadcast via radio can reach a lot of drivers very __(6)______(easy). For this reason, ______(7)_would be appropriate to use radio to advertise goods and services relating to cars. _(8)______, it would be no use __(9)_ _____(advertise) products on radio if the ad relies on visual effects. Television adverts are great for generating emotional responses to a product, but magazines and newspapers can have __(10)_ ____details. 基础训练篇（16）

We must have water to live. __ 1____the water we use is clean and fresh, it will make us ill. The animals __ 2____ (live) in and around lakes and rivers must also have clean water. Our rivers and lakes supply most of our water. The clear, blue water found by the first American settlers has changed. Many of our water sources are now __ 3____. They are filled __ 4____dirt and waste which cannot be cleaned out. In many places, water is not safe for us to use.

Lake Erie was __ 5____ a beautiful lake. Now it has been called “a dying lake”. Waste from nearby homes and factories has been dumped into __ 6____. Fish can no longer live in much

of its polluted water. George Washington once called the Potomac “__ 7____finest river in the world”. Now its water is no longer blue. Instead, it is soupy green. Suds(肥皂泡沫), from detergents（洗涤剂；洗衣粉） used to wash clothes, often cover the water of our rivers.

Water cannot __8____(make) in a factory. Once water is polluted, it is __ 9____to make it clean and safe again. We must learn to take care of the water __ 10_____we now have.