填空题 1.A fund will be 1 2 in memory of the great scientist.2.I have 3 4 5 data already I need to change my data package. 3.Many scientists are worried that if we don't take action to protect the environment, some animals may__6__ 7_. 4.Climate change caused by human activities __8__ 9__ 10 the natural environment. 5. The Great Wall of China is 11 12 its incredible length and historical importance. 6. The last prime minister of the country was 13 14 for a short period. 7. In 1271, Marco Polo and his family 15 16 on their historic trip to China