1 . Diets are most effective if _______（将……和……结合）exercise. (根据汉语提示完成句子)

2 . When she woke up, she found that she was surrounded by a crowd of strangers.   (用过去分词作宾语补足语改写句子)
________________________________________________________________________________

4 . 尽管被许多人嘲笑，他还是继续他的研究。
_________ ________ by many people , he continued his study.

5 . The teacher was tired of the countless troubles ________ a________ (导致；引起) by the boys. (根据中英文提示填空)

7 . 随着越来越多的森林遭到破坏，一些动植物正面临着灭绝的危险。(with复合结构)
_____, some animals and plants are facing the danger of dying out.

8 . The peaceful landscape of the “Emerald Isle” and its many green counties is ________, with its rolling green hills ________(根据课文内容填空)

9 . “绿宝石（爱尔兰）岛风光宁静秀美，郡县草木葱茏，青山连绵起伏，牛羊点缀其中，堪称一场名副其实的视觉盛宴”。
The peaceful landscape of the “Emerald Isle” and its many green counties is a ______ ______ for the eyes, with its rolling green hills ______ ______ sheep and cattle.