cho tam giác nhọn ABC đường tròn tâm o đường kính BC cắt AB,AC lần lượt tại D,E . hai đường thẳng BD và CE cắt nhau tại H . a,Chứng minh ADHE là tứ giác nội tiếp đường tròn
b,Chứng minh OD là tiếp tuyến của đường tròn ngoại tiếp tam giacs ADH
c,Cho góc BAC = 60 độ . chứng minh Sabc = Sade
I,Turn into indirect speech:
1. Daisy said to her roommate, “Remember to leave for this town at 6:00 am.”
2. The boy said to his mother, “I’ve stolen the puzzle in her room.” The boy admitted
3. The student said,”I’m sorry I forget doing my homework, teacher.”
4. “Don’t touch the switch over there,” I said to Ann (warned)
5. Tom said to you, “It was kind of you to help me. Thank you very much.”
6. “I hear you have just passed the entrance examination. Congratulations!,” John said to us
7. “ Please don’t tell anybody what happpened in this room yesterday. ” She asked me…
8. She said, “You have broken my sunglasses, Jill.”
9. “Tim, I shouldn’t do like that if I were you. Isn’t it very dangerous?” she said
10. “ Please give me some money. I haven’t eat anything since morning”, he asked.
11. “Do you have to move these tables into the room, Long?” I said à I asked
12 .“ I feel like going to America soon”. The woman looked forward to
13. “ It’s really nice of you to help me”, Peter said to Jack. Peter thanked………….
14. “ Don’t play games on computer all day”, Tom’s mother said to him. (warned )
15. “ I hear you passed your driving test.Congratulation!”, Peter said to me. (congratulated )
16. “ I’m sorry. I didn’t do my homework,” John said to his English teacher. (apologised)
17. “ I always want to become an English teacher,” Mary said. (dreamed )
18. “I have sold this house to my aunt.” Ms. Tam said: “I will buy a new apartment in Ha Noi.” Ms. Tam said
19. “ Will Tom able to take part in the Song Festival here tomorrow?”. (She wondered)
I.Use the word in brackets to form a new word that fits into the blank !
1.My dad used to be really fit and he was in his college ................. team . (ATHLETE)
2.My friend wants to become a ...................... foothball player . (PROFESSION)
3.Why are cats such ........................... animals ? (PLAY)
4.Lots of people get ..................... just from watching someone perform . (PLEASE)
5.There are many form of ................... You just have to find the right kind . (ENTERTAIN)
6.In his youth my dad was a....................... He worker on a big ship for to years. (SAIL)
7.I wear a lot of make-up in order to feel ...................... . (CONFIDENCE)
8.I am a very ......................person. I can never wait . (PATIENT)
9.I alwayshave my cell phone with me.I am completely .................without it. (HELP)
10. M y brother bought an outdoor jacket . It'sso ...............when he goes hiking.(PRACTICE)
11. Most of out possession are ................... We could live just as well without them . (REPLACE)
12.she is really a .................. person. She can play three diffirent instruments and sing as well (MUSIC)
13.The manual is completely ................. all the information is out of date . (USE)
14.She isn't wearing the most ...................... shoes . (FASHION)
15.At weddings, its .................... to kiss the bride . (TRADITION)
I.Complete the sentences :
1.Extraterrestrial life has not been ..................... proved yet . SCIENCE
2.The concert didn't live up to out ............................ EXPECT
3.The electric company admitted their ............... for the black out . RESPOND
4.Did you see to have ............... as a child . ALLOW
5.I don't like those trousers, no matter how ............. they are . FASHION
6.Life ................ varies according to country and gender . EXPECT
II.Complete the sentences with the right words :
1.The .............. in this place is absolutely terrible . I want my money back . (serve)
2.Could you have me make a .................. I don't know which phone to buy . (decide)
3.Even very good clothes are quite ............... in this shop . (afford)
4.There are no further ............ for applying for this job . (require)
5.My mother had no idea that this vase was so ............................. (value)
6.Companies should always tell the .............. in their advertisements . (true)
7.Credit card are really ................., but you have to be carefull with them . (use )
8.I read a ............... of all the new mountain bike . This one is the best . (compare)
9.Before you get money from the bank you have to make a ........... about whether you
can pay it back or not . (judge)
10.He has been an ................... banker for ages (invest)