dangerous危险的
音标 ['deɪndʒərəs]，可知此词是一个三音节词，比较级的构成要借助副词much
比较级是more dangerous，更危险的
最高级是most dangerous，最危险的
语法分 
dangerous是一个形容词，形容词最常见的作用是作定语和表语。
其比较级和最高级，记性不变，用法也不变。
造句：
作定语
Air pollution in Beijing has reached more dangerous levels than Shijiazhuang.
北京的空气污染比石家庄达到了更危险的水平。
Teachers can be on most dangerous ground on the earth if they discuss religion.
教师如果讨论宗教，将会置自己于世上最危险的境地。
作表语
It’s more dangerous to walk around here on your own at night than at day.
在这儿独自一人行走晚上比白天要更危险。
It’smost dangerousto walk around here for a girlat night.
晚上女孩子在这里独自一人行走是最危险的。
用dangerous的比较级和最高级各造一个句子
dangerous危险的音标 ['deɪndʒərəs]，可知此词是一个三音节词，比较级的构成要借助副词much比较级是more dangerous，更危险的最高级是most dangerous，最危险的语法分析：dangerous是一个形容词，形容词最常见的作用是作定语和表语。
其比较级和最高级，记性不变，用法也不变。
造句：作定语Air pollution in Beijing has reached more dangerous levels than Shijiazhuang.北京的空气污染比石家庄达到了更危险的水平。
Teachers can be on most dangerous ground on the earth if they discuss religion.教师如果讨论宗教，将会置自己于世上最危险的境地。
作表语It's more dangerous to walk around here on your own at night than at day.在这儿独自一人行走晚上比白天要更危险。
It's most dangerous to walk around here for a girl at night.晚上女孩子在这里独自一人行走是最危险的。
这个句子正确吗？Rock is dangerous
因为攀岩是一种动作，只有这种行为才能称得上危险，因此只能用非谓语动词做主语：1. 用不定式作主语——表示一次具体的攀岩行为* To climb the cliff/precipice is dangerous. * It is dangerous to climb the cliff/precipice. （改用形式主语 it， 不定式短语后置）2. 或动名词作主语——表示通常意义上的的攀岩行为* Climbing a cliff/precipice It is dangerous . * It is dangerous climbing a cliff/precipice. （改用形式主语 it，动名词短语后置）注释： rock 的含义是与悬崖或山峰等相对的大岩石，而攀岩指的是攀登绝壁，应该用 cliff （岩石高耸的、陡峭的或悬垂的一面） 或者 precipice（极其陡峭的岩石）
protective相关的句子
1. The earth's magnetosphere is at once protective and dangerous.地球的磁层既具有保护的功能，却又极其危险。
2. During the launch phase, it would ride in a protective aluminum shell.在发射阶段，它盛在一只保护的铝壳里。
用dangerous造句,句型：It is +形容词+to do sth.
Also, learn the dangerous danger signs of the medical problems linked to heat.同时，学习一些高温天气引起的疾病的预警信号。
Also, learn the dangerous danger signs of the medical problems linked to heat|heat.并学会一些与高温中暑有关的危险信号。
希望能采纳，谢谢
用exciting、busy、difficult、dangerous、fun、boring这6个形容词作...
She is busy with her work.He is busy writing his novel.We went to an exciting football game last week.That is an exciting game.Marry is a very difficult child.The most difficult days are over.It is dangerous to playing along the river.That is a very dangerous object.We had a fun night in the club.What fun we had.It was boring to sit there without angthing to do.
to play with fire is dangerous
英语中一般都会把to play with fire is dangerous这样的句子改成It is dangerous to play with fire这样的形式，目的是为了避免给人头重脚轻的感觉。
it是形式主语，指代的是to play with fire（真正的主语）。
to play with fire is dangerous不是主语从句，是简单的主系表结构的句子。
主语从句指的是用一个句子作主语，而to play with fire 只是一个不定式短语。
翻译句子：你一定要小心火,太危险了。
You must
1. Time flies.时光易逝。
2. Time is money. 一寸光阴一寸金。
3. Time and tide wait for no man. 岁月无情；岁月易逝；岁月不待人。
4. Time tries all. 时间检验一切。
5. Time tries truth. 时间检验真理。
6. Time past cannot be called back again.光阴一去不复返。
7. All time is no time when it is past.光阴一去不复返。
8. No one can call back yesterday; Yesterday will not be called again.昨日不复来。
9. Tomorrow comes never.切莫依赖明天。
10.One today is worth two tomorrows.一个今天胜似两个明天。
11.The morning sun never lasts a day.好景不常；朝阳不能光照全日。
12.Christmas comes but once a year.圣诞一年只一度。
13.Pleasant hours fly past.快乐时光去如飞。
14.Happiness takes no account of time.欢娱不惜时光逝。
15.Time tames the strongest grief.时间能缓和极度的悲痛。
16.The day is short but the work is much.工作多，光阴迫。
17.Never deter till tomorrow that which you can do today.今日事须今日毕，切勿拖延到明天。
18.Have you somewhat to do tomorrow, do it today.明天如有事，今天就去做。
19.To him that does everything in its proper time, one day is worth three. 事事及时做，一日胜三日。
20.To save time is to lengthen life.节省时间就是延长生命。
21.Everything has its time and that time must be watched.万物皆有时，时来不可失。
22.Take time when time cometh,lest time steal away.时来必须要趁时，不然时去无声息。
23.When an opportunity is neglected, it never comes back to you.机不可失，时不再来；机会一过，永不再来。
24.Make hay while the sun shines.晒草要趁太阳好。
25.Strike while the iron is hot.趁热打铁。
26.Work today, for you know not how much you may be hindered tomorrow.今朝有事今朝做，明朝可能阻碍多。
27.Punctuality is the soul of business.守时为立业之要素。
28.Procrastination is the thief of time.因循拖延是时间的大敌；拖延就是浪费时间。
29.Every tide hath its ebb.潮涨必有潮落时。
30.Knowledge is power.知识就是力量。
31.Wisdom is more to be envied than riches.知识可羡，胜于财富。
32.Wisdom is better than gold or silver.知识胜过金银，33.Wisdom in the mind is better than money in the hand.胸中有知识，胜于手中有钱。
34.Wisdom is a good purchase though we pay dear for it.为了求知识，代价虽高也值得。
35.Doubt is the key of knowledge.怀疑是知识之钥。
36.If you want knowledge, you must toil for it.若要求知识，须从勤苦得。
37.A little knowledge is a dangerous thing.浅学误人。
38.A handful of common sense is worth a bushel of learning.少量的常识，当得大量的学问。
39.Knowledge advances by steps and not by leaps.知识只能循序渐进，不能跃进。
40.Learn wisdom by the follies of others.从旁人的愚行中学到聪明。
41.It is good to learn at another man's cost.前车可鉴。
42.Wisdom is to the mind what health is to the body.知识之于精神，一如健康之于肉体。
43.Experience is the best teacher.经验是最好的教师。
44.Experience is the father of wisdom and memory the mother.经验是知识之父，记忆是知识之母。
45.Dexterity comes by experience.熟练来自经验。
46.Practice makes perfect.熟能生巧。
47.Experience keeps a dear school,but fools learn in no other. 经验学校学费高，愚人旁处学不到。
48. Experience without learning is better than learning without experience. 有经验而无学问，胜于有学问而无经验。
49.Wit once bought is worth twice taught.由经验而得的智慧，胜于学习而得的智慧；一次亲 身的体会，胜过两次的教师教导。
50.Seeing is believing.百闻不如一见。
51.Business is the salt of life.事业是生命之盐。
52.Business before pleasure.事业在先，享乐在后。
53.Business makes a man as well as tries him.事业可以考验人，也可以造就人。
54.Business neglected is business lost.忽视职业便是放弃职业。
55.Never think yourself above business.勿自视过高；不要眼高手低；永远不要认为自己是大 才小用。
56.Business may be troublesome, but idleness is pernicious.事业虽扰人，懒惰害更大。
57.He that thinks his business below him will always be above his business. 自命大才小用，往往眼高手低。
58.Do business, but be not a slave to it.要做事，但不要做事务的奴隶。
59.Everybody's business is nobody's business. 众人的事就是无人过问的事。
60.Work makes the workman.勤工出巧匠。
61.Better master one than engage with ten.会十事，不如精一事。
62.A work ill done must be twice done.首次做不好，必须重新搞。
63.They who cannot do as they would, must do as they can.不能如愿而行，也须尽力而为。
64.If you would have a thing well done, do it yourself.想把事情来做好，就得亲自动手搞。
65.He that doth most at once doth least.什么都想一次做完，结果一件也做不完；贪多嚼不 烂。
66.Do as most men do and men will speak well of thee.照大...