1.by 2.ahead 3.when 4.up 5.who 6.walking7.that 8.to carry1.theory religion solar system2.Billions exist violent in time atmosphere3.Unlike fundamental 4.harmful poisonous multiplying5.prevent from his turn6.puzzled puzzling cheered up7.Now that/since block out 8.breaking out atoms 9.pull watch out10 biologist biology astronomyDACBACDA假如你是某校高一学生李华，最近你发现外籍学生John不太适应高中生活而感到烦扰，请你用英语给他写一封信，给他提点建议，内容要点如下：1.向老师求助，了解高中学习的特点2.课余时间参加兴趣小组活动3.学会放松，多参加体育锻炼可适当增加细节，使行文连贯DearJohn,_yours,Lihua
