1.Computer hackers have broken down security (系统),raising questions about the safety of information.
2.The three-star hotel offers a friendly (气氛)and personal service.
3.There is a lot of rubbish (漂浮) on the surface of the river.
4.There are many (理论)about the origin of life.
5.The (气候) is different from place to place.
6.I noticed her looking at me with a (迷惑的)stare.
7.They are both teachers.Otherwise they are (不同).
8.He (拉)the door open and rushed out.
9.Water is (基本的)to the growth of plants.
10.He often says that he doesn’t believe in any (宗教) and only believes in himself.
答案:1.systems 2.atmosphere 3.floating 4.theories 5.climate 6.puzzled 7.unlike 8.pulled 9.fundamental 10.religion