【正文】
na The Great Wall 21, meters kilometers long Achieve 實現 thick 厚的 freezing 寒冷的,結冰的 succeed 成功,實現目標 nature 自然,自然界 ocean 大洋,海洋 Do you remember the words? 1. 厚的 2. 包括 ,成功 ,完成,成功 5. force 6. nature 7. ocean 8. challenge 答案: 2. include 3. achieve 4. succeed 5. 力量 ,自然界 7. 大洋,海洋 8. 挑戰(zhàn) 3a Read the article and match each paragraph with the main ideas. Read the article careful. And then try to finish these questions. ( ) Himalayas run along the northwestern part of China.