D．The cat in your house may be a good helper for housework.

　　【答案】　1－5　BDCAC

　　　阅读P14－15课文，在空白处填入适当的内容(1个单词)或括号内单词的正确形式

　　This text which contains four 1. (advertise)is about four products.Let's list the advantages of each product.

　　These headphones from Philips have no wires.People can listen to the programmes while 2. (walk)and can listen to radio or TV up to 60 meters 3. ．The signals can go through glass，doors and walls.Mini camera is convenient，reliable and easy to use.It's no 4. (big)than a credit card.It's made 5. strong material.Earrings are 6. (attract) and useful in many noisy situations，7. they are bargains at 8. low price.Feline floor cleaners are made from good quality material.They are very 9. (practice)and very easy 10. (wash)．What do you think of these products?

　　【答案】　1.advertisements　2.walking　3.away　4.bigger　5.from　6.attractive　7.and　8.a 9．practical　10.to wash

　　 I think electric toothbrushes are not very practical．

　　我认为电动牙刷不太实用。

　　(1)electric adj.与电有关的，用电的；充满刺激的，令人激动的

　　①They still live in the houses without electric lights.

　　他们仍然住在没有电灯的房子里。

　　②The news had an electric effect.

　　这消息顿时使群情激昂。

　　[明辨异同]　electric/electrical

electric 与电直接有关的，"用电操作的或生电的物体" electrical 与电有关的人或事物，"电的，电气的" 　(electric，electrical)