1. It is + ±»Ç¿µ÷²¿·Ö + that ...
¸Ã¾äÐÍÊÇÇ¿µ÷¾äÐÍ¡£½«±»Ç¿µ÷µÄ²¿·Ö·ÅÔÚÇ°Ã棬ÆäËü²¿·ÖÖÃÓÚthatÖ®ºó¡£±»Ç¿µ÷²¿·Ö¿ÉÒÔÊÇÖ÷Ó±öÓ±íÓï»ò×´Óǿµ÷µÄÖ÷ÓïÈç¹ûÊÇÈË£¬that¿ÉÒÔÓÉwho»»Óá£Èç¹û°ÑÕâÖÖ¾äÐͽṹ»®µôºó£¬Ó¦¸ÃÊÇÒ»¸öÍêÕûÎÞȱµÄ¾ä×Ó¡£ÕâÒ²ÊÇÅжÏÇ¿µ÷¾äÐÍÓëÆäËü´Ó¾äµÄ·½·¨¡£
It was about 600 years ago that the first clock with a face and an hour hand was made.
It was they that (who ) cleaned the classroom yesterday.
It was in the street that I met her father.
2. It is not until + ±»Ç¿µ÷²¿·Ö + that ...
¸Ã¾äÐÍÒ²ÊÇÇ¿µ÷¾äÐÍ¡£Ö÷ÒªÓÃÓÚÇ¿µòʱ¼ä×´ÓÒë³ÉººÓֱµ½£®£®£®²Å£®£®£®£¢£¬¿ÉÒÔ˵ÊÇ not ... until ... µÄÇ¿µ÷ÐÎʽ¡£
It was not until she took off her dark glasses that I realized she was a famous film star.
= Not until she took off her dark glasses did I realize she was a famous film star.
= I didn¡¯t realize she was a famous film star until she took off her dark glasses.
3. It is clear ( obvious, true, possible, certain....) that .....
¸Ã¾äÐÍÖÐit ÊÇÐÎʽÖ÷ÓÕæÕýµÄÖ÷ÓïÊÇthat Òýµ¼µÄÖ÷Óï´Ó¾ä£¬³£ÒëΪ£¢Çå³þ£¨ÏÔÈ»£¬ÕæµÄ£¬¿Ï¶¨£®£®£®£©£¢ÊÇÖ÷Óï´Ó¾ä×î³£¼ûµÄÒ»Öֽṹ¡£
It is very clear that he¡¯s round and tall like a tree.
= That he¡¯s round and tall like a tree is very clear.
4. It is important ( necessary, right, strange, natural...) that ...
¸Ã¾äÐͺÍÉÏÒ»¸öͬÊôÒ»¸ö¾äÐÍ¡£ÓÉÓÚÖ÷¾äÖеÄÐÎÈݴʲ»Í¬£¬that ºóµÄ´Ó¾äÖÐÒªÓÃÐéÄâÓïÆø£¨should + ¶¯´ÊÔÐΣ©£¬should ¿ÉÒÔÊ¡È¥¡£½¨Òé¼Çס¸Ã¾äÐÍÖеÄÐÎÈÝ´Ê¡£
It is important that we (should) learn English well.
It is necessary that he (should) remember these words.
5. It is said (reported, learned....) that ...
¸Ã¾äÐÍÖеÄit ÈÔÊÇÐÎʽÖ÷ÓÕæÕýÖ÷ÓïÊÇthat Òýµ¼µÄÖ÷Óï´Ó¾ä¡£¸Ã½á¹¹³£ÒëΪ£¢¾Ý˵£¨¾Ý±¨µÀ£¬¾ÝϤ£®£®£®£©£¢¡£
It is said that he has come to Beijing.
It is reported that another earth satellite has been put into orbit.
6. It is suggested ( ordered ... ) that ...
¸Ã¾äÐͺÍÉÏÒ»¸öͬÊôÒ»¸ö¾äÐÍ¡£Ö÷¾äÖеĹýÈ¥·Ö´ÊÊDZíʾÇëÇ󣬽¨Ò飬ÃüÁîµÈ´Êʱ£¬thatºóµÄ´Ó¾äÒªÓÃÐéÄâÓïÆø£¨should + ¶¯´ÊÔÐΣ©£¬should ¿ÉÒÔÊ¡¡£³£ÒëΪ£¢¾Ý½¨Ò飻ÓÐÃüÁ£®£®£©
It is suggested that the meeting ( should ) be put off.
It was ordered that we ( should ) arrive there in two hours.
7. It is a pity ( a shame ... ) that ...
¸Ã¾äÐÍÖУ¬thatºóµÄ´Ó¾äÒ»°ãÓÃÐéÄâÓïÆø£¨should + ¶¯´ÊÔÐΣ©£¬should¿ÉÊ¡È¥£®±íʾ³öºõÒâÁÏ£¬³£ÒëΪ£¢¾¹È»£¢¡£Ã»ÓÐÕâÖÖÒâÒåʱ£¬Ôò²»ÓÃÐéÄâÓïÆø¡£
It is a pity that such a thing ( should ) happen in your class.
ÕâÖÖʾ¹È»·¢ÉúÔÚÄãÃÇ°àÉÏ£¬ÕæÊÇÒź¶£¡
It is a pity that he is ill. ËûÉú²¡ÁË£¬ÕæÒź¶£¡
8. It is time ( about time ,high time ) that ...
¸Ã¾äÐÍÖÐthat ºóµÄ´Ó¾äÓ¦¸ÃÓÃÐéÄâÓïÆø£¬ÖµµÃ×¢ÒâµÄÊÇ¢Ù ³£Óùýȥʱ̬±íʾÐéÄ⣮¢Ú ÓÐʱҲÓÃshould + ¶¯´ÊÔÐΣ¬should ²»ÄÜÊ¡¡£³£ÒëΪ£¢ÊÇ£¨ÕýÊÇ£©£®£®£®µÄʱºî£®£®£®£¢¡£
It is time that children should go to bed.
= It is time that children went to bed.
9. It is the first ( second ... ) time that ...
¸Ã¾äÐÍÒªºÍÉÏÒ»¸ö¾äÐÍÇø±ð¿ªÀ´¡£¸Ã¾äÐÍÖÐµÄ that ´Ó¾ä²»ÓÃÐéÄâÓïÆø£¬¶øÓÃÍê³Éʱ̬¡£ÖÁÓÚÓÃʲôÍê³Éʱ̬£¬ÓÉÖ÷¾äµÄνÓﶯ´ÊµÄʱ̬¾ö¶¨¡£Èç¹ûÊÇÒ»°ãÏÖÔÚʱ£¬ºóÃæ´Ó¾äÓÃÏÖÔÚÍê³Éʱ̬£»Èç¹ûÊÇÒ»°ã¹ýȥʱ£¬ºóÃæ´Ó¾äÔòÓùýÈ¥Íê³Éʱ̬¡£¸Ã½á¹¹ÖÐ that ¿ÉÒÔÊ¡È¥£»itÓÐʱÓà this Ìæ»»£®³£ÒëΪ£¢ÊǵÚÒ»£¨¶þ£©£®£®£®´Î£®£®£®£¢¡£
It is the first time I have been here.
= This is the first time I have been here.
10. It is .... since ...
¸Ã¾äÐÍÖ÷ÒªÓÃ×÷´¦Àí˲¼ä¶¯´ÊµÄÍê³Éʱ£¬ÓÖÒªºÍ±íʾһ¶Îʱ¼äµÄʱ¼ä×´ÓïÁ¬ÓõÄÎÊÌâ¡£Ö÷¾äÖÐÊÇʱ¼ä×÷±íÓÆäʱ̬ÊÇÏÖÔÚʱ»òÍê³Éʱ£¬since Òýµ¼µÄ´Ó¾äͨ³£ÊÇÒ»°ã¹ýȥʱ̬£¬¶øÇÒÊÇ˲¼ä¶¯´Ê¡£Èç¹ûÖ÷¾äÊÇÒ»°ã¹ýȥʱ£¬´Ó¾äÔòÓùýÈ¥Íê³Éʱ¡£
It is ( has been ) 5 years since his father died.
11. It is ... when ...
¸Ã¾äÐÍÖÐµÄ when Òýµ¼µÄÊÇÒ»¸öʱ¼ä×´Óï´Ó¾ä£¬Ö÷¾äÖÐµÄ it ָʱ¼ä£¬±íÓïÓɾßÌåµÄʱ¼ä³äµ±¡£³£ÒëΪ£¢µ±£®£®£®µÄʱºò£¬ÊÇ£®£®£®£¢¡£
It was 5 o¡¯clock when he came here.
12. It be ... before ...
¸Ã¾äÐÍÖ÷¾äÖÐµÄ it ָʱ¼ä, Ö÷¾äÖеÄʱ̬³£Êǽ«À´Ò»°ãʱ»ò¹ýȥʱÁ½ÖÖʱ̬£®Ö÷¾äÖеıíÓï¶àÊÇlong, not long , 3 days , 2 weeks µÈ±íʾʱ¼ä¶ÎµÄ´Ê»ò¶ÌÓï¡£³£ÒëΪ£¢£®£®£®Ö®ºó£®£®£®£¢¡£
It was 3 days before he went to Beijing.
It will be not long before he finishes his job.
13. It happens (seems, looks, appears ) that...
¸Ã¾äÐÍÖÐitÊÇÐÎʽÖ÷Óthat Òýµ¼µÄÊÇÖ÷Óï´Ó¾ä£¬Ö÷¾äÖеÄhappen , seemµÈ´ÊÊDz»¼°Îﶯ´Ê£®
It happened ( so happened ) that he met his teacher in the street. ÅöÇÉ£®£®
It seems that he will be back in a few days. ¿´À´£®£®£®
14. It takes sb. ... to do sth.
¸Ã¾äÐÍÖеIJ»¶¨Ê½ÊÇÕæÕýµÄÖ÷ÓitÊÇÐÎʽÖ÷Ó¾äÐÍÖеÄÖ±½Ó±öÓïÊÇʱ¼ä¡£³£ÒëΪ£¢×ö£®£®£®Òª»¨·ÑijÈË£®£®£®£¢¡£
It took thousands of people many years to build the Great Wall.
15. It is no good (use ) doing sth.
¸Ã¾äÐÍÖеÄÕæÕýÖ÷ÓïÊǶ¯Ãû´Ê¶ÌÓÖ÷¾äÖеıíÓï¿ÉÒÔÊÇno good , ( not any good ) , no use , ( not any use )¡£
It is no good learning English without speaking English.
16. It doesn¡¯t matter whether ( if ) ...
¸Ã¾äÐÍÖÐwhether(if) Òýµ¼µÄ´Ó¾äÊÇÕæÕýÖ÷Ó¸Ã¾äÐͳ£ÒëΪ£¢²»ÂÛ£¨ÊÇ·ñ£©£®£®£®Ã»¹Øϵ£®£®£®¡£
It doesn¡¯t matter if they are old.
17. It is kind ( of sb. ) to do sth.
¸Ã¾äÐÍÖеIJ»¶¨Ê½¶ÌÓïÊÇÕæÕýÖ÷ÓÈç¹û²»¶¨Ê½µÄÂß¼Ö÷ÓïÊÇÓÉ ofÒýÆð£¬Ö÷¾äÖеÄÐÎÈݴʱØÐëÊÇÄܱíʾÂß¼Ö÷ÓïÌØÕ÷µÄÐÎÈÝ´Ê¡£³£¼ûµÄÓУº bad , brave , careless, clever , cruel , foolish , good £¨ºÃÐĵģ©, honest , horrible , kind , lazy , modest , naughty , nice£¨ÓнÌÑøµÄ£©, polite, rude , silly , stupid , wise , wrong£¨´íÎóµÄ£©µÈ¡£ Õâ¸ö¾äÐÍ¿ÉÒÔ¸ÄдΪ£ºsb. is kind to do sth.
It is kind of you to say so.
= You are kind to say so.
18. It is necessary ( for sb. ) to do sth.
¸Ã¾äÐÍÓëÉÏÒ»¸öͬÊôÒ»¸ö¾äÐÍ¡£Èç¹û²»¶¨Ê½µÄÂß¼Ö÷ÓïÊÇÓÉforÒýÆð£¬Ö÷¾äÖеÄÐÎÈÝ´Êͨ³£ÊDZíʾÖØÒªÐÔ£¬½ôÆÈÐÔ£¬Æµ·±³Ì¶È£¬ÄÑÒ×£¬°²È«µÈÇé¿öµÄÐÎÈÝ´Ê¡£³£¼ûµÄÐÎÈÝ´ÊÓУº¢Ù important, necessary, natural ¢Ú easy , safe , common , normal , hard , difficult , dangerous , unusual, rare , impossible , pleasantµÈ¡£
ÔÚ¢ÙÖеÄÐÎÈÝ´Ê×÷±íÓï¿ÉÒÔÓôӾä¸Äд£¬ È磺
It is important for her to come to the party.
= It is important that she (should ) come to the party
19. It looks ( seems ) as if ...
¸Ã¾äÐÍÖÐitÎÞÒâÒå¡£ as if Òýµ¼Ò»¸ö×´Óï´Ó¾ä¡£³£ÒëΪ£¬£¢¿´ÆðÀ´ºÃÏ󣮣®£®£¢Èç¹ûÓëÊÂʵ²»Ïà·ûºÏ£¬ÔòÓÃÐéÄâÓïÆø£®
It looks as if he is ill.£¨ÕæµÄ²¡ÁË£©
It looks as if he were ill. £¨Ã»ÓÐÉú²¡£©
It seemed as if he were dying.
20. We think it important to learn a foreign language.
¸Ã¾äÐÍÖеÄit ×÷ÐÎʽ±öÓΪÁ˼ÇÒä·½±ãÎÒÃǿɳƸþäÐÍΪ"6123½á¹¹"¡£
6Ö¸Ö÷¾äÖг£ÓõĶ¯´Ê£ºthink, believe, make, find, consider, feel£»
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2Ö¸µÄÊDZö²¹µÄÁ½ÖÖÐÎʽ£ºÐÎÈÝ´Ê»òÃû´Ê£»
3Ö¸µÄÊÇÕæÕý±öÓïµÄÈýÖÖÐÎʽ£º²»¶¨Ê½¶ÌÓ¶¯Ãû´Ê¶ÌÓï»òthatÒýµ¼µÄ±öÓï´Ó¾ä¡£
We think it our duty to clean our classroom every day.
He felt it important learning English well.
They found it difficult that they would finish their work in two days.
