专项练习4·U6 Keep our city clean-阅读提优

Unit 6 Keep our city clean 专项练习4 阅读提优 一、阅读所给材料,判断正（T）误（F）。 •Plants take in carbon dioxide and make oxygen that people and animals need. •Plants make 98% of the oxygen we need. •Some plants can be medicine. •Some plants can also help you study and work better. •Some plants help keep your eyes good. •Some plants can make you have a good rest after you smell them. •People and animals get food from plants. •People get 3/4 of the world’s food from just 12 plant species. •Plants help clean water. •Plants can reduce the floods. ☆词汇积累 carbon dioxide 二氧化碳 oxygen 氧气 species 种,物种 （　　）1. Plants can make carbon dioxide we need. （　　）2.Some plants are good for our health. （　　）3. People only need 12 species of plants. （　　）4. There are some floods because we have many plants. （　　）5. This passage is about why we need plants. 二、阅读所给材料,选择正确的答案。 George is reading a web page about green tips. Read the web page. What will happen if we fail to act? * If we don't save energy, we’ll have no energy to use very soon. * If we keep making the air dirty, trees will die and we will get sick. * If we keep cutting down trees, many animals will lose their homes. What should we do? * We should use rechargeable batteries. When we need to charge these batteries, we should remember to turn off the power after the batteries are fully charged. 2 / 2 * To save water, we should not take a bath. We should have a shower. * We should not throw away waste paper, cans and plastic bags. We should put them in recycling bins. ☆词汇积累 fail 未做 battery 电池 charge 给……充电 power 电力供应 （　　）1. Animals will ______ if we continue to cut down trees. A. get sick B. have no food to eat C. have no places to live （　　）2. What does the underlined word "rechargeable" mean in Chinese? A."可回收利用的". B."可充电的". C."更便宜的". （　　）3. We should _____ when the rechargeable batteries have been fully charged. A. throw them int