A. heal
B. inspire
C. frown
D. consume
Tính các góc của tứ giác ABCD biết
a)AD // BC và \(\widehat{A}-\widehat{B}=20^o\) ; \(\widehat{D}=2\stackrel\frown{C}\)
b)AB // CD , \(\widehat{A}=\dfrac{1}{3}\stackrel\frown{D};\stackrel\frown{B}-\stackrel\frown{C}=50^o\)
a) Vì AD // BC
=> A + B = 180o (trong cùng phía)
mà A - B = 20o
=> A = (180o + 20o) : 2 = 100o
=> B = 100o - 20o = 80o
Vì AD // BC
=> C + D = 180o
mà D = 2C
=> D là 2 phần thì C là một phần
=> D = 180o : (2 + 1) . 2 = 120o
=> C = 120o : 2 = 60o
b) Vì AB // CD
=> A + D = 180o
mà A = D : 3
=> D = 3A
=> D là 3 phần thì A là 1 phần
=> D = 180o : (3 + 1) . 3 = 135o
=> A = 135o : 3 = 45o
Vì AB // CD
=> B + C = 180o
mà B - C = 50o
=> B = (180o + 50o) : 2 = 115o
=> C = 115o - 50o = 65o
Cho (O)và dây cung AB không đi qua O. Trên dây AB lấy 3 điểm C, D, E sao cho AC=CD=DE=EB. Các tia OC, OD, OE cắt đường tròn tại M,N,P.CMR:
a) \(\stackrel\frown{AM}=\stackrel\frown{PB}\) và \(\stackrel\frown{MN}=\stackrel\frown{NP}\)
b)\(\stackrel\frown{AM}< \stackrel\frown{MN}\)
Cho nửa đường tròn (O) đường kính Ae. Gọi B, C, D là 3 điểm trên nửa đường tròn sao cho \(\stackrel\frown{AC}=2\stackrel\frown{AB},\stackrel\frown{AD}=3\stackrel\frown{AB}\)
a, Chứng minh M là điểm chính giữa của \(\stackrel\frown{AD}và\stackrel\frown{BC}\) ( OM ⊥ AD)
b, Tứ giác ABCD là hình gì? Vì sao?
Pick out the word that has a different stress pattern.
1. A. design B. suject C. casual D. tunic
2. A. mention B. different C. inspire D. pattern
3. A. occasion B. encourage C. uniquely D. logical
4. A. prefer B. inspire C. design D. mention
5. A. traditional B. minority C. fashionable D. convenient
Pick out the word that has a different stress pattern.
1. A. design B. subject C. casual D. tunic
2. A. mention B. different C. inspire D. pattern
3. A. occasion B. encourage C. uniquely D. logical
4. A. prefer B. inspire C. design D. mention
5. A. traditional B. minority C. fashionable D. convenient
Pick out the word that has a different stress pattern.
1. A. design B. suject C. casual D. tunic
2. A. mention B. different C. inspire D. pattern
3. A. occasion B. encourage C. uniquely D. logical
4. A. prefer B. inspire C. design D. mention
5. A. traditional B. minority C. fashionable D. convenient
Cho (O;R) và hai dây AB, AC, B thuộc \(\stackrel\frown{AC}\), AB = \(R\sqrt{2}\) , sđ \(\stackrel\frown{AC}=120^0\).
a, Tính sđ \(\stackrel\frown{AB}\) , sđ \(\stackrel\frown{BC}\)
b, Tính độ dài \(\stackrel\frown{AB}\), độ dài \(\stackrel\frown{BC}\), độ dài \(\stackrel\frown{AC}\) theo R.
c, Tính AC, BC theo R.
Help me!!!
a. Xét \(\Delta OAB:\)\(AB^2=2R^2\)
\(OA^2+OB^2=R^2+R^2=2R^2\)
Vậy \(\Delta OAB\) vuông tại O.
\(\Rightarrow l_{\stackrel\frown{AB}}=\frac{\pi R.90}{180}=\frac{1}{2}\pi R\)
Có: \(l_{\stackrel\frown{BC}}=l_{\stackrel\frown{AC}}-l_{\stackrel\frown{AB}}\)\(=\frac{\pi R.120}{180}-\frac{1}{2}\pi R\)\(=\frac{1}{6}\pi R\)
c.Ace Legona, Nguyễn Việt Lâm tính giùm mk.
\(\widehat{AOC}=120^0\Rightarrow\widehat{AOH}=60^0\)
\(\Rightarrow AH=OA.sin\widehat{AOH}=R.sin60^0=\frac{R\sqrt{3}}{2}\)
\(\Rightarrow AC=2AH=R\sqrt{3}\)
\(\widehat{BOC}=\widehat{AOC}-\widehat{AOB}=30^0\)
Kẻ \(CP\perp OB\Rightarrow\left\{{}\begin{matrix}CP=OC.sin\widehat{POC}=R.sin30^0=\frac{R}{2}\\OP=OC.cos\widehat{POC}=R.cos30^0=\frac{R\sqrt{3}}{2}\end{matrix}\right.\)
\(BP=OB-OP=R-\frac{R\sqrt{3}}{2}=\frac{R\left(2-\sqrt{3}\right)}{2}\)
Áp dụng Pitago cho tam giác BCP:
\(BC=\sqrt{BP^2+CP^2}=R\sqrt{2-\sqrt{3}}\)
Ace Legona, Rồng Đom Đóm, Nguyen, Nguyễn Thành Trương, Nguyễn Thị Ngọc Thơ, Nguyễn Thị Thảo Vy, Lê Anh Duy, Y, Nguyễn Huy Thắng, Khôi Bùi , Bonking, Ribi Nkok Ngok, Nguyễn Việt Lâm, svtkvtm, Akai Haruma, Mysterious Person, @Phùng Khánh Linh, ...
1. A. mention B. inspire C. different D. pattern
2. A. fashionable B. convenient C. traditional D. designer
3. A. champagne B. occasion C. encourage D. subject
1. A. kerosene B. tinsel C. pessimism D. mussel
2. A. considerate B. candidate C. associate D. adequate
3. A. scowl B. frown C. sprout D. dough
4. A. bombard B. discard C. mustard D. retard
5. A. intellectual B. situation C. digestion D. Greenwich
1. A. kerosene B. tinsel C. pessimism D. mussel
2. A. considerate B. candidate C. associate D. adequate
3. A. scowl B. frown C. sprout D. dough
4. A. bombard B. discard C. mustard D. retard
5. A. intellectual B. situation C. digestion D. Greenwich
1. A. kerosene B. tinsel C. pessimism D. mussel
2. A. considerate B. candidate C. associate D. adequate
3. A. scowl B. frown C. sprout D. dough
4. A. bombard B. discard C. mustard D. retard
5. A. intellectual B. situation C. digestion D. Greenwich
1. A. kerosene B. tinsel C. pessimism D. mussel
2. A. considerate B. candidate C. associate D. adequate
3. A. scowl B. frown C. sprout D. dough
4. A. bombard B. discard C. mustard D. retard
5. A. intellectual B. situation C. digestion D. Greenwich
A Affect B prevent C ailment D consume
A. polluted B. consume C. nuclear D. fuel
Đáp án A, phát âm là /u/
Các từ còn lại phát âm là /juː/
TEST UNIT 6- GENDER EQUALITY
I. Circle A, B, C or D to choose the words with different stress
1. A. inspire B. person C. major D. female
2. A. support B. window C. pursue D. employ
3. A. party B. workforce C. accept D. student
4. A. freedom B. fighter C. image D. admire
5. A. problem B. open C. correct D. follow
6. A. police B. famous C. courage D. office
7. A. responsibility B. knowledgeable C. budget D. satisfy
8. A. opportunity B. equal C. satisfaction D. limitation
9. A. preference B. exhausted C. qualified D. violence
10. A. domestic B. mature C. effective D. property
II. Choose the best answer.
11. __ against women and girls should be eliminated when government and people co-operate.
A. Equality B. Discrimination C. Dissatisfaction D. Disbelief
12. She has a preference ______ a teacher over a doctor. A. for B. in C. at D. of
13. The government will soon __________ the problem of inequality in wages.
A. establish B. address C. sue D. abolish
14. The team paid a ________ price for its lack of preparation.
A. heavy B. dirty C. light D. expensive
15. In order to __ a man’s job, Brenda had to work very hard.
A. work B. pursue C. enroll D. prefer
16. In the past, our grandparents had a __________ for grand-sons over grand-daughters.
A. discrimination B. equality C. rights D. preference
17. Men and women should be given equal rights _________ education and employment.
A. in B. to C. for D. at
18. He had to _________ a heavy price to win the scholarship to the USA.
A. pay B. address C. advocate D. discriminate
19. Gender discrimination cannot______________ people from doing a job of dream.
A. enroll B. prevent C. address D. insist
20. Toyota ________ much preference to those graduated from FTU.
A. enrolled B. had C. gave D. addressed
21. She sued him _________ damages he did to her cars.
A. for B. in C. of D. about
22. Educated women are likely to get ______ jobs and become more important at home.
A. well-trained B. well-paid C. well-prepared D. well-educated
23. Men are decision-makers and ___.
A. care-givers B. bread-winners C. trouble-makers D. house-keepers
24. Some people think that married women ________ pursue a career.
A. shouldn’t B. might not C. mustn’t D. might not
25. We _________ stop when traffic lights are red.
A. must B. should C. might D. Can
26. Women’s natural roles are __________ and housewives.
A. breadwinners B. decision-makers C. care-givers D. supporters
27. Remember to bring your raincoat. It ____________ rain.
A. might B. should C. can D. must
28. You ________ pick those flowers. Don’t you see the sign?
A. mustn’t B. don’t need to C. can’t D. needn’t
29. It’s late. I think we___ better go now. A. had B. have C. should D. would
30. We___ take a bus to the school. It’s too far to walk.
A. have to B. must C. may D. ought
31. You___________ be very tall to play football.
A. don’t have to B. mustn’t C. may not D. can’t
32. We ___________ get there on time. The boss is away today.
A. mustn’t B. don’t have to C. can’t D. couldn’t
33. I _______ find my own way there. You _______ wait for me.
A. should / can't B. have to / must C. can / needn't D. might / mustn't
34. Cigarettes _ at a bakery.
A. most buy B. cannot buy C. cannot be bought D. should not buy
1. Passengers ___ smoke until the signs have been switched off.
A. mustn’t B. can’t C. needn’t D. mightn’t
36. There are a lot of tickets left, so you ___ pay for the tickets in advance.
A. mustn’t B. won’t C. shouldn’t D. don’t have to
37. You ___ put anything on the shelves until the glue has set hard.
A, couldn’t B. mustn’t C. don’t have to D. needn’t
38. You ___ wash the car. I just had it done yesterday.
A. mustn’t B. needn’t C. must D. may not
39. It’s a secret. You ___ let anyone know about it.
A. mustn’t B. needn’t C. mightn’t D. may not
40. Secondary school students nowadays ____ wear uniform.
A. have to B. need to C. should D. could
41. We _____ open the lion's cage. It is contrary to Zoo regulations.
A. must B. mustn't C. needn't D. should
42. We _____ drive fast; we have plenty of time.
A. can't B. needn't C. mustn't D. oughtn't
43. You _clean the windows. The window-cleaner is coming.
A. don't have B. must C. mustn't D. needn't
44. I ____ find my own way there. You _____ wait for me.
A. should / can't B. have to / must C. can / needn't D. might / mustn't
45. When you have a small child in the house, you _leave small objects lying around. Such objects _ be swallowed, causing serious injury or even death. A. should / must B. mustn't / can't C. needn't / may D. should not / might
46. I’m not sure. I ___ come a few minutes late.
A. may
I. Circle A, B, C, or D to choose the words with different stress
1. BII. Choose the best answer.
11. B.I. Circle A, B, C or D to choose the words with different stress
1. A. inspire B. person C. major D. female
2. A. support B. window C. pursue D. employ
3. A. party B. workforce C. accept D. student
4. A. freedom B. fighter C. image D. admire
5. A. problem B. open C. correct D. follow
6. A. police B. famous C. courage D. office
7. A. responsibility B. knowledgeable C. budget D. satisfy
8. A. opportunity B. equal C. satisfaction D. limitation
9. A. preference B. exhausted C. qualified D. violence
10. A. domestic B. mature C. effective D. property
II. Choose the best answer.
11. __ against women and girls should be eliminated when government and people co-operate.
A. Equality B. Discrimination C. Dissatisfaction D. Disbelief
12. She has a preference ______ a teacher over a doctor. A. for B. in C. at D. of
13. The government will soon __________ the problem of inequality in wages.
A. establish B. address C. sue D. abolish
14. The team paid a ________ price for its lack of preparation.
A. heavy B. dirty C. light D. expensive
15. In order to __ a man’s job, Brenda had to work very hard.
A. work B. pursue C. enroll D. prefer
16. In the past, our grandparents had a __________ for grand-sons over grand-daughters.
A. discrimination B. equality C. rights D. preference
17. Men and women should be given equal rights _________ education and employment.
A. in B. to C. for D. at
18. He had to _________ a heavy price to win the scholarship to the USA.
A. pay B. address C. advocate D. discriminate
19. Gender discrimination cannot______________ people from doing a job of dream.
A. enroll B. prevent C. address D. insist
20. Toyota ________ much preference to those graduated from FTU.
A. enrolled B. had C. gave D. addressed