速度:既然1min我永远读不完,那么我也计时好了 = = 昨天没有读的,今天有点没感觉了 1‘42 1’20 1‘03 1’02 1’15 自由19'' 越障:今天进步灰常大。以前都是分2-3段写出全部提纲。今天一次写了所有的部分。哈。开心。干别的去了。 MI: pesticides is bad for bees Phenomenon: The author starts from a phenomenon that many bees died in the winter of 2006.Many scientists called the died CCD.Then many more bees died in Europe in the CCD style. Introduction:Bees are important for our crops.They pollinate the crops so that we can harvest. Opinions : Trough the phenomenon,many scientists have their different opinions.However,the most common opinion is that the killer is pesticides. Experiments in two papers: One expert choose two group to test for the opinion that the pesticides do harm to the bees.But he doesn't test where the bees are harmed.The other expert H do other experiment to test that the pesticides harm the memory of bees and make a kind of bees can't go back their hives.So the production of queens is dropping from the pesticides being used.A kind of bees depend on the queens to build hive,so it is dangerous to see that the queens are decreasing.Moreover,there are some worries about CCD. Results: Some countries begin to limit the use of pesticides because they are worried about the bees.Even though the experiment in the real land needs more money to kill other insects, we will soon find that the money is well spent and let other countries to limit the pesticides. -- by 会员 kaitlynyl (2012/4/4 9:03:48)
kait 今天这个写的超赞呐!!!条理清晰,好明确的说~ |