1 . The Amazon river, from ______ the rainforest gets its name, is close to 6,400kilometers in length. (用适当的词填空)

2 . Thanks to Tu Youyou’s discovery of qinghaosu, malaria patients all over the world now have had a greatly increased chance of ________ (survive). (所给词的适当形式填空)

3 . On Sunday afternoons I used to spend in the warmth of my grandma’s flat, listening to her wonderful stories and ________ (greed) eating bowl after bowl of her delicious rice pudding. (所给词的适当形式填空)

4 . A typhoon is a ________ (destroy) storm that occurs in the North-west Pacific Ocean. Typhoons are quite common in South-East Asian countries. (所给词的适当形式填空)

5 . We practise earthquake safety ________ (程序，步骤) twice a year, so the kids were calm enough to protect themselves during the earthquake. (根据汉语提示单词拼写)

6 . As the impact of human activities continues to grow and the list of species in danger of ________ (灭绝，绝种) becomes longer, we are left with a question: can we afford to damage the “lungs of the planet”? (根据汉语提示单词拼写)

7 . No matter how bad my mood is, that perfect ________ (combine) is always enough to lift my spirts. (所给词的适当形式填空)