What problems are caused by too much homework?

22． What problems are caused by too much homework?

We are sorry to find that the damage（）the goods was caused by heavy rain during transportation.

Task II (20 marks)　　Directions:Many nations’ serious school problems nowadays result from the students’ attitude. What causes these problems? What’s your opinion to deal with these problems? State your opinion in no less than about 160 words, and write it on the Answer Sheet.

练习15　　(1) Whatever its underlying reason, there is no doubt that much of the pollution caused could be controlled if only companies, individuals and governments would make more efforts. In the home there is an obvious need to control litter and waste. Food comes wrapped up three or four times in packages that all have to be disposed of; drinks are increasingly sold in bottles or tins which cannot be reused. (2) This not only causes a litter problem, but also is a great process by persuading many of us not only to buy things we neither want nor need, but also to throw away much of what we do buy. Pollution and waste combine to a problem everyone can help to solve by cutting out necessary buying, excess consumption and careless disposal of the products we use in our daily lives.

Chemical burns are caused by the skin coming in contact with（）.

According to the author, many of the promises made by the advertiser are______

Fires resulting from spontaneous combustion are usually caused by the improper disposal of（）.

If you want to test if fragmentation is causing problems on the network, which two ping command options are useful?（）

Problems with the diesel engine fuel injection pump are usually caused by（）

The crankcase of many diesel engines are kept under a slight vacuum by the （）.