be + 形容词 + for sb. to do sth.结构用法
1. 结构分析
在“be + 形容词 + for sb. to do sth.”结构中，形容词描述的是事物的性质或特征，for sb.表示不定式动作的执行者，to do sth.是真正的主语，it常作形式主语。例如：It's important for us to learn English.（学英语对我们来说是重要的。）这里“important”是说“学英语”这件事的性质，“for us”明确是对“我们”而言，真正的主语是“to learn English”。
2. 常见形容词
- 表示重要性或必要性：如 important（重要的）、necessary（必要的）、vital（至关重要的）等。例句：It's necessary for students to do homework.（对学生来说做作业是必要的。）
- 表示难易程度：如 easy（容易的）、difficult（困难的）、hard（艰难的）等。例句：The math problem is hard for me to solve.（这道数学题对我来说很难解。）
- 表示可能性或适宜性：如 possible（可能的）、impossible（不可能的）、suitable（合适的）等。例句：It's possible for you to get good grades if you study hard.（如果你努力学习，你有可能取得好成绩。）
双语 80 句
1. It's good for you to eat more vegetables.（多吃蔬菜对你有好处。）
2. It's bad for your eyes to watch TV for a long time.（长时间看电视对你的眼睛不好。）
3. It's helpful for her to practice speaking English every day.（每天练习说英语对她有帮助。）
4. It's dangerous for children to play with fire.（孩子们玩火是危险的。）
5. It's useful for us to keep a diary.（写日记对我们有用。）
6. It's interesting for them to read this storybook.（读这本故事书对他们来说很有趣。）
7. It's boring for me to do the same thing again and again.（反复做同一件事对我来说很无聊。）
8. It's challenging for the team to win the game.（对这个队来说赢得比赛是有挑战性的。）
9. It's convenient for people to use public transportation.（使用公共交通对人们来说很方便。）
10. It's expensive for him to buy a new car.（对他来说买一辆新车很贵。）
11. It's cheap for her to buy clothes in that store.（在那家商店买衣服对她来说很便宜。）
12. It's exciting for the students to go on a school trip.（学生们去学校旅行是令人兴奋的。）
13. It's tiring for workers to work long hours.（长时间工作对工人来说很累。）
14. It's relaxing for her to listen to music.（听音乐对她来说很放松。）
15. It's educational for kids to visit the museum.（孩子们参观博物馆是有教育意义的。）
16. It's essential for plants to get enough sunlight.（植物获得足够的阳光是必不可少的。）
17. It's impossible for him to finish the work alone.（他独自完成这项工作是不可能的。）
18. It's possible for the weather to change suddenly.（天气突然变化是有可能的。）
19. It's suitable for the dress to be worn at the party.（这条裙子适合在聚会上穿。）
20. It's inappropriate for you to be late for the meeting.（你开会迟到是不合适的。）
21. It's beneficial for the body to do exercise regularly.（经常锻炼对身体有益。）
22. It's harmful for the environment to litter everywhere.（到处乱扔垃圾对环境有害。）
23. It's rewarding for the volunteers to help the poor.（志愿者帮助穷人是有回报的。）
24. It's demanding for the athlete to train hard every day.（运动员每天刻苦训练要求很高。）
25. It's simple for her to make a cake.（对她来说做一个蛋糕很简单。）
26. It's complicated for scientists to solve this problem.（对科学家来说解决这个问题很复杂。）
27. It's amazing for tourists to see the beautiful scenery.（游客看到美丽的风景是令人惊叹的。）
28. It's ordinary for people to make mistakes.（人们犯错误是很平常的。）
29. It's special for the couple to celebrate their wedding anniversary.（这对夫妇庆祝结婚纪念日是特别的。）
30. It's common for students to have exams.（学生有考试是常见的。）
31. It's rare for him to get angry.（他生气是罕见的。）
32. It's normal for the temperature to change in different seasons.（温度在不同季节变化是正常的。）
33. It's abnormal for the machine to make strange noises.（机器发出奇怪的噪音是不正常的。）
34. It's valuable for the antiques to be well preserved.（古董被妥善保存是有价值的。）
35. It's worthless for the broken toy to be repaired.（修理那个坏了的玩具是不值得的。）
36. It's pleasant for us to walk in the park.（在公园里散步对我们来说很愉快。）
37. It's unpleasant for her to smell the bad odor.（闻到不好的气味对她来说不愉快。）
38. It's proper for the students to respect their teachers.（学生尊重老师是恰当的。）
39. It's improper for the boy to talk back to his parents.（这个男孩和父母顶嘴是不恰当的。）
40. It's secure for the house to have a good lock.（房子有一把好锁是安全的。）
41. It's insecure for the network without a password.（没有密码的网络是不安全的。）
42. It's clear for everyone to understand the rules.（每个人都清楚理解这些规则。）
43. It's unclear for us what he will do next.（我们不清楚他接下来会做什么。）
44. It's fair for the judge to make a just decision.（法官做出公正的裁决是公平的。）
45. It's unfair for some students to be punished without reasons.（一些学生无故受罚是不公平的。）
46. It's lucky for the man to win the lottery.（这个人中彩票是幸运的。）
47. It's unlucky for her to lose her wallet.（她丢了钱包是不幸的。）
48. It's hopeful for the patient to recover soon.（病人有望很快康复。）
49. It's hopeless for the situation to get better without any action.（不采取任何行动，情况好转是无望的。）
50. It's timely for the government to take measures to control the pollution.（政府及时采取措施控制污染。）
51. It's untimely for the meeting to start so late.（会议这么晚开始是不合时宜的。）
52. It's fashionable for young people to wear trendy clothes.（年轻人穿时髦的衣服是时尚的。）
53. It's unfashionable for the old - fashioned dress to be popular again.（老式的裙子再次流行是不时尚的。）
54. It's traditional for Chinese people to celebrate the Spring Festival.（中国人庆祝春节是传统的。）
55. It's non - traditional for them to have a western - style wedding.（他们举行西式婚礼是非传统的。）
56. It's sufficient for the food to feed five people.（这些食物够五个人吃。）
57. It's insufficient for the water to last a week.（这些水不够维持一周。）
58. It's evident for the evidence to prove his guilt.（证据证明他有罪是明显的。）
59. It's inevident for us to find the truth without more information.（没有更多信息，我们很难发现真相。）
60. It's remarkable for the child to have such a great talent.（这个孩子有如此大的天赋是了不起的。）
61. It's unremarkable for most people to live an ordinary life.（大多数人过着平凡的生活是不引人注目的。）
62. It's logical for the conclusion to be drawn from the facts.（从事实中得出结论是合乎逻辑的。）
63. It's illogical for him to believe such a rumor.（他相信这样一个谣言是不合逻辑的。）
64. It's feasible for the plan to be carried out successfully.（这个计划成功实施是可行的。）
65. It's infeasible for the project to be completed within a month.（这个项目在一个月内完成是不可行的。）
66. It's accessible for the disabled to use the special facilities.（残疾人使用特殊设施是方便的。）
67. It's inaccessible for the poor to afford the luxury goods.（穷人买不起奢侈品。）
68. It's memorable for the class to have a great party.（班级举行一次很棒的派对是难忘的。）
69. It's forgettable for the unimportant event to be remembered.（记住不重要的事件是容易被遗忘的。）
70. It's responsible for parents to take care of their children.（父母照顾孩子是有责任的。）
71. It's irresponsible for the driver to drive after drinking.（司机酒后驾车是不负责任的。）
72. It's creative for the artist to make unique works.（艺术家创作独特的作品是有创造性的。）
73. It's uncreative for him to copy others' ideas.（他抄袭别人的想法是没有创造性的。）
74. It's courageous for the fireman to enter the burning building.（消防员进入着火的大楼是勇敢的。）
75. It's cowardly for the man to run away from the danger.（这个人逃离危险是懦弱的。）
76. It's generous for the rich to donate money to the poor.（富人给穷人捐款是慷慨的。）
77. It's stingy for the miser to refuse to help others.（吝啬鬼拒绝帮助别人是小气的。）
78. It's friendly for neighbors to help each other.（邻居互相帮助是友好的。）
79. It's unfriendly for the new student to be ignored by others.（新学生被其他人忽视是不友好的。）
80. It's respectful for the audience to keep quiet during the performance.（观众在表演期间保持安静是有礼貌的。）
