Unit 4 The Earth 重点词汇词性转换及巩固训练（含答案）沪教版（2024）七年级英语

Unit 4 The Earth 重点词汇词性转换及巩固训练 Part 1: 核心词汇与词性转换 首先，请熟记以下核心词汇及其不同词性转换形式。 核心词汇 (Base Word) 名词 (Noun) 形容词 (Adjective) 副词 (Adverb) 动词 (Verb) 其他/备注 . environment 环境 environment environmental (环境的) environmentally (protect the environment) environmentalist n. 环保主义者 2. pollute 污染 pollution (污染) polluted (被污染的) / pollute pollutant n. 污染物 3. protect 保护 protection (保护) protective (保护的) / protect 4. nature 自然 nature natural (自然的) naturally (naturalize) 5. danger 危险 danger dangerous (危险的) dangerously endanger (危及) endangered adj. 濒危的 6. use 使用 use (用途); usage (用法) useful (有用的); useless (无用的) usefully; uselessly use reuse v. 再利用 7. important 重要的 importance (重要性) important importantly / 8. necessary 必须的 necessity (必需品) necessary necessarily / 9. differ 不同 difference (不同，差异) different (不同的) differently differ 10. collect 收集 collection (收藏品) collective (集体的) collectively collect collector n. 收藏家 11. harm 伤害 harm (伤害) harmful (有害的); harmless (无害的) harmfully; harmlessly harm 12. energy 能量 energy energetic (精力充沛的) energetically energize 13. reduce 减少 reduction (减少) reductive (减少的) / reduce 14. produce 生产 product (产品); production (生产) productive (多产的) productively produce producer n. 生产者 15. decide 决定 decision (决定) decisive (决定性的) decisively decide Part 2: 巩固训练 练习一：词性转换填空 根据句意，用所给单词的正确形式填空。 We must do something to reduce air _____ (pollute). It is _____ (nature) for parents to love their children. The government has made new laws for the _____ (protect) of wild animals. Smoking is _____ (harm) to your health. You should give it up. There are many _____ (difference) between the two pictures. Can you find them The _____ (important) of learning English is widely recognized. We should use _____ (reuse) bags instead of plastic ones. The panda is an _____ (danger) species. We need to save them. His _____ (collect) of stamps is very valuable. We need to make a _____ (decide) about where to go for our holiday. 练习二：单项选择 选择最佳答案完成句子。 ( ) 1. We should protect the _____ and keep it clean. A. environmental B. environment C. environmentally ( ) 2. The river is seriously _____. We cant swim in it anymore. A. pollution B. polluted C. pollute ( ) 3. It is _____ to throw rubbish into the sea. A. correct B. necessary C. wrong ( ) 4. We can _____ paper, plastic and glass to help the Earth. A. reduce B. reuse C. collect ( ) 5. The _____ from the sun is called solar energy. A. energy B. energetic C. energize 练习三：完成句子 根据中文提示，完成下列英文句子。 我们有责任保持环境清洁。 We have a duty to keep the _____ clean. 使用公共交通对环境保护是必要的。 Using public transport is _____ for environmental _____. 那些工厂正在危害野生动物的生存。 Those factories are _____ the wildlife. 做出改变永远不会太晚。 Its never too late to _____ a _____. 我们 ... ...