Question

小学六年级英语下册PEP课本

第29页-31页的内容!!快!!!

Answer 1

我知道
P29
Let's try
Listen and circle
A.cleaning the room B.watching the TV C.Arting picture

Let'talk
john:What did you do last weekend?
Wu:I played foodball.How about you?
john:I visited my grandparents.
Wu:Did you help them ciean their room?
John:yes,I did.
Let's find out
john:What did you do yesterday?
Wu:I listened to music.

P30
let' read
Wu Yifan was busy last weekend. He visited his grandmother
Saturday morning. It was his grandma's birthday The cooked noodles together......(实在打不下去了，哎，把分给我撒）

Answer 2

韩江中上游处于山区，水污染少，水质优,养育了汕头近三分之二的人口,近年来,广东近岸海域海水水质总体良好，大部分为清洁和较清洁，小部分受污染。轻度污染、中度污染和严重污染海域面积分别约为1 800km2、2 130 km2和3 100 km2，重污染水域主要集中在珠江口和韩江口海域。
监测项目 浓度范围 平均值 超标率% 一类海水水质标准
磷酸盐 0.005~0.432 0.014 33.3 0.015mg/L
无机氮 0.090~0.865 0.238 41.7 200 mg/L
化学耗氧量 0.19~1.94 0.82 0 2.0 mg/L
石油类 0.016~0.070 0.042 25 0.05 mg/L
铅 0.52~1.36 0.91 33.3 1.0μg/L

关于近年水质的变化
以“九五”期间全省主要江河38个可比江段的水质监测数据为基础，采用Spearman秩相关系数法分析水质综合污染指数变化趋势，结果表明：“九五”期间西江、韩江水系水质污染程度总体上呈下降趋势，但不显著,水系变化不大.污染特征主要有四：生活污水是主要污染源，工业废水和面源污染的影响相当大，废水排放重点区域也是水质污染较重的区域，污染物排放总量减少。