Water power uses moving water in rivers and dams(堤坝). Moving water has energy. Water power makes 16-80% of the electricity we use.Wind PowerIs wind power new? No, it isn't. People used wind power many years ago. Wind power makes 40% of the electricity we use.Solar Power...
(E)What are the main sources(来源)of green energy?(B)1. Water power uses moving water in rivers and dams(堤坝).Moving water has energy. Water power makes 16.6% of the elec-tricity we use.( D )2. Is wind power new? No, it isn't. People used wind pow er many years ago. Wi...
Directions: There are 4 passages in this part. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A),B) ,C) and D). You should decide on the best choice and mark the corresponding letter on the Answer Sheet with a single...
A huge spider lives in this hole. The goliath bird-eating spider lives in a deep burrow. it may dig its own burrow or use one that another animal no longer uses. A female stays in her burrow for most of her life. she lays around 50 eggs...
B. The founder of the company. C. The manager of the company. 20. What is the school unable to do this year? A. Arrange a morning presentation. B. Send a teacher to produce tools. C. Find out how the students...
Sailboats What uses the wind to get from place to place? A sailboat! Sailboats have big sails that catch the wind. The sails use the wind to make the boat move.Every sailboat has one or more sails. A sail is a large piece of cloth. It is often in the shape of a triangle. The ...
They can be more than 60 feet, or 18.3 metres, long Sailors can take sailing boats out on rivers, lakes, and oceans. They (5) ___follow rules though. There are rules for sailing just as there are rules for driving. 相关知识点: 试题来源: 解析 文章大意:人们用什么来从一个地方到...
chemical or biological change to the quality of water bodies—rivers, lakes, oceans and ground water—that has harmful effects on any living thing that uses or lives in it. Causes of water pollution include untreated sewage and waste from domestic households, industrial and agricultural activities,...
England was __38__ the first cuntry in Eurpe where cmmn peple used umbrellas against rain. The weather there is very __39__ and umbrellas are very useful. Everybdy uses umbrellas tday. The next time yu __40__ ne, thinking that fr centuries nly great men and wmen used them, yu'll...
Unit 5 What are the shirts made of 【单元测试卷(能力提升)】(满分:120分 时间:100分钟)第一部分 听力(共两节,满分20分)第一节(共5小题;每小题1分,满分 5分)听下面5段对话。每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项。听完每段对话后,你都有10秒钟的时间来回答有关...