đề thi giữa ki 1 trường THCS thụy vân đề chính thứcđề chính thức 100%ngày mai thi...
Đọc tiếp
đề thi giữa ki 1 trường THCS thụy vân đề chính thức
đề chính thức 100%
ngày mai thi rồi
K
Khách
Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
Những câu hỏi liên quan
10 tháng 6 2021
`1)x=9(tmđk)`
`<=>sqrtx=3`
`<=>A=3/(9-3)=3/6=1/2`
`2)B=2/(sqrtx+2)+(x+4)/(x-4)(x>0,x ne 4)`
`=(2(sqrtx-2)+x+4)/(x-4)`
`=(2sqrtx-4+x+4)/(x-4)`
`=(x+2sqrtx)/(x-4)`
`=(sqrtx(sqrtx+2))/((sqrtx-2)(sqrtx+2))`
`=sqrtx/(sqrtx-2)`
`c)B/A=sqrtx/(sqrtx-2):sqrtx/(sqrtx-3)`
`=sqrtx/(sqrtx-2)*(sqrtx-3)/sqrtx`
`=(sqrtx-3)/(sqrtx-2)`
`B/A<2`
`<=>(sqrtx-3)/(sqrtx-2)-3/2<0`
`<=>(2sqrtx-6-3sqrtx+6)/(2(sqrtx-2))<0`
`<=>(-sqrtx)/(2(sqrtx-2))<0`
Vì `-sqrtx<0`
`<=>2(sqrtx-2)>0`
`<=>sqrtx-2>0`
`<=>sqrtx>2`
`<=>x>4`.
Vậy với `x>4` thì `B/A<2`
AT
10 tháng 6 2021
câu hình:
1) Trong (O) có BC là dây cung không đi qua O và H là trung điểm BC
\(\Rightarrow OH\bot BC\Rightarrow\angle OHA=90\Rightarrow\angle OHA+\angle OMA=90+90=180\)
\(\Rightarrow AMOH\) nội tiếp
2)Vì AM,AN là tiếp tuyến \(\Rightarrow\Delta AMN\) cân tại A và AO là phân giác \(\angle MAN\)
\(\Rightarrow AO\bot MN\) mà \(\Delta AMO\) vuông tại M \(\Rightarrow AM^2=AI.AO\) (hệ thức lượng)
3) Ta có: \(\angle OMA+\angle ONA=90+90=180\Rightarrow OMAN\) nội tiếp
mà AMOH nội tiếp \(\Rightarrow A,O,M,N,H\) cùng thuộc 1 đường tròn
\(\Rightarrow\angle CHD=\angle AHM=\angle ANM=\angle MDN\)\(\Rightarrow ND\parallel BC\)
MN cắt BC tại D.
Ta có: \(\angle OIE+\angle OHE=90+90=180\Rightarrow OIEH\) nội tiếp
Xét \(\Delta AIE\) và \(\Delta AHO:\) Ta có: \(\left\{{}\begin{matrix}\angle OAHchung\\\angle AIE=\angle AHO=90\end{matrix}\right.\)
\(\Rightarrow\Delta AIE\sim\Delta AHO\left(g-g\right)\Rightarrow\dfrac{AI}{AH}=\dfrac{AE}{AO}\Rightarrow AE.AH=AO.AI=AM^2\)
Xét \(\Delta AMB\) và \(\Delta ACM:\) Ta có: \(\left\{{}\begin{matrix}\angle CAMchung\\\angle AMB=\angle ACM\end{matrix}\right.\)
\(\Rightarrow\Delta AMB\sim\Delta ACM\left(g-g\right)\Rightarrow\dfrac{AM}{AC}=\dfrac{AB}{AM}\Rightarrow AM^2=AB.AC\)
\(\Rightarrow AH.AE=AB.AC\Rightarrow AE=\dfrac{AB.AC}{AH}\)
mà A,B,C cố định \(\Rightarrow H\) cố định \(\Rightarrow E\) cố định \(\Rightarrow\) MN luôn đi qua điểm E cố định
N
2
S
7 tháng 5 2017
Mk học lớp 6 k có cậu lên hỏi đáp lịch sử 8 trên h ý. Chúc bn thi tốt hihi
17 tháng 12 2018
Câu 1. Hiệp ước đầu tiên mà triều đình Huế kí với thực dân Pháp là Hiệp ước gì?
A. Hiệp ước Nhâm Tuất. B. Hiệp ước Giáp Tuất.
C. Hiệp ước Hác-măng. D. Hiệp ước Pa-tơ-nốt.
Câu 2. Khởi nghĩa Yên Thế (1884 - 1913) là phong trào yêu nước chống Pháp của giai cấp, tầng lớp nào?
A. Công nhân. B. Tư sản.
C. Nông dân. D. Địa chủ phong kiến.
Câu 3. Liên bang Đông Dương gồm những nước nào?
A. Việt Nam, Lào. B. VB. Việt Nam, Lào, Cam-pu-chia.
C. Lào, Cam-pu-chia. D. VD. Việt Nam, Cam-pu-chia, Thái Lan.
Câu 4. Hệ thống giáo dục phổ thông thời Pháp thuộc gồm bao nhiêu bậc?
A. 5 bậc. B. 2 bậc. C. 4 bậc. D. 3 bậc.
B. Phần tự luận (8.0 điểm)
Câu 5 (4.5 điểm)
Nêu những nguyên nhân thực dân Pháp xâm lược nước ta. Âm mưu của thực dân Pháp khi đánh Đà Nẵng là gì? Chiến sự ở Đà Nẵng những năm 1858 - 1859 diễn ra như thế nào?
Câu 6 (3.5 điểm)
Chỉ rõ chính sách kinh tế về các ngành nông nghiệp, công, thương nghiệp và giao thông vận tải trong chương trình khai thác thuộc địa lần thứ nhất của thực dân Pháp ở Việt Nam. Các chính sách đó của Pháp nhằm mục đích gì?
NH
PHÒNG GD & ĐT THỌ XUÂN ĐỀ CHÍNH THỨC…………….. KỲ THI CHỌN HỌC SINH GIỎI CẤP HUYỆN NĂM HỌC 2021 - 2022 Môn: Tiếng Anh - Lớp 7Thời gian: 150 phút (không kể thời gian giao đề)(Đề gồm 05 trang)Ngày thi: 27/3/2022 SECTION A. LISTENING (15 pts)Question I. Listen to the recording twice, fill in the blank with a suitable word. (5 points)Today,...
Đọc tiếp
| KỲ THI CHỌN HỌC SINH GIỎI CẤP HUYỆN NĂM HỌC 2021 - 2022 Môn: Tiếng Anh - Lớp 7 Thời gian: 150 phút (không kể thời gian giao đề) (Đề gồm 05 trang) Ngày thi: 27/3/2022 |
SECTION A. LISTENING (15 pts)
Question I. Listen to the recording twice, fill in the blank with a suitable word. (5 points)
Today, I’m going to give you some (1) ……………………….. about record-keeping. Keeping accurate records is very important, because if a (2) ……………………….. is unhappy about his treatment, he may want to make a complaint to the surgeon. These records will help us to make a case. Always write your (3) ……………………., the date and the time on all the records. Don’t use pencil, or colored pens. Use black ink. If you make a (4) ……………………, just cross it out with a single line. Don’t use correction fluid. Don’t try to file the records away yourself, or they may get lost. Put them in this box here. The administration manager will make sure they are filed away (5) ………………………...
Question II. Listen to two parents talking about their son and mark the statements as true (T) or false (F). (5 points)
6. Sean has a test at school tomorrow. ………………. ……………….
7. Sean is afraid he won’t pass the test. ………………. ……………….
8. Sean’s test is at 2:30 in the afternoon. ………………. ……………….
9. Sean’s dad is going to drive him to the test centre. ………………. ……………….
10. Sean’s mum thinks he needs more practice with park. ………………. ……………….
Question III. Listen to the recording twice then choose A, B or C to best answer the questions.(5 points)
11. What is the purpose of the woman's visit?
A. business B. pleasure C. business and pleasure
12. Where will the woman stay during her trip?
A. at a friend's home B. at a hotel C. at a university dormitory
13. About how long will the woman be in the country?
A. one or two days B. three or four days C. more than four days
14. What things are in the woman's luggage?
A. clothing, computer, and books B. CD player, clothing, and books
C. books, gifts and computer
15. What other piece of information do we learn about the woman?
A. Her parents are on the same trip.
B. She enjoys traveling to different countries. C. She was born in that country.
SECTION B. PHONETIC(5 pts)
Question I. Choose the word whose underlined part is pronounced differently from that of the others in the same line and write A, B, C or D on your answer sheet. (3 pts)
16 | A. watched | B. crooked | C. brushed | D. washed |
17 | A. devices | B. changes | C. houses | D. clothes |
18 | A. nature | B. fashion | C. travel | D.planet |
Question II.Choose the word which has a different stress pattern from the others. (2 pts)
19 | A. happy | B. hobby | C. region | D. agree |
20 | A. decorate | B. tradition | C. family | D. festival |
SECTION C. VOCABULARY AND LEXICAL
Question I. Choose the best answer A, B, C or D to complete the sentences.(10 pts)
21. My brother is…………………I am.
A. twice older than B. as twice old as C. twice as old as D. twice as old
22. Let’s go out for a walk, ................... ?
A. do we B. don’t we C. won’t we D. shall we
23. These are our books. They are …………..English.
A. in B. by C. from D. of
24. ……………they spent a lot of money on the film, it wasn’t a big success
A. However B. Nevertheless C. Despite D. Although
25.The Internet is ……………………………… useful invention of modern life.
A. a B. an C. the D. Ø
26. The house was ............ building.
A. a stone nice old B. a nice old stone
C. a nice stone old D. an old nice stone
27. Some young people work......................hospital volunteers.
A. as B. too C. so D. same
28. You should not ride so…………………. . You may have an accident.
A. careless B. carelessly C. carefully D. careful
29. The students all went to the circus yesterday. I heard it was really……………
A. amusing B. amused C. amuse D. amusingly
30. - Carol: "Let's have a pizza." - Tim: "___________."
A. Not again B. It doesn't matter C. It’s a good idea D. Not really
Question II. Write the correct from or tense of verbs in brackets. (8 pts)
31. We (have)………………….. dinner at this time tomorrow.
32. he (take)…………………….that medicine, he’ll feel better.
33. The price ( become ) ...................................... more and more expensive these days.
34. My mother is busy (cook) ………………………dinner in the kitchen.
35.The man showed us how (go) ………………….. to the railway station.
36. The motorbike looks clean. You (wash) ...........................it?
37. A painting by Picasso (sell) ...................... for 3 million dollars last year.
38. If I ( be) .................... you, I would buy that house.
Question III. Supply the correct form of the words in brackets (7 pts)
39. I’m really happy as all of my neighbors are very …………………… (FRIEND)
40. There are two ………..… from Ha Noi to Ho Chi Minh City every day. (FLY)
41.Children should avoid _____________ foods such as hamburger and chips. (HEALTH)
42.The teacher was really _______________ so the lesson passed quickly. (AMUSE)
43.We went out for a _____________ dinner at a nearby beach restaurant. (CELEBRATE)
44.________ in a lion dance outfit show off their moves at the Rio Carnival. (PERFORM)
45. You mustn’t drive .........................on busy streets. (CARE)
Question IV. Find and correct the mistake (5 pts)
4
SV
Sinh Viên NEU
CTVVIP
13 tháng 9 2025
Question I. Choose the word whose underlined part is pronounced differently from that of the others in the same line and write A, B, C or D on your answer sheet. (3 pts)
16
A. watched
B. crooked
C. brushed
D. washed
17
A. devices
B. changes
C. houses
D. clothes
18
A. nature
B. fashion
C. travel
D.planet
Question II.Choose the word which has a different stress pattern from the others. (2 pts)
19
A. happy
B. hobby
C. region
D. agree
20
A. decorate
B. tradition
C. family
D. festival
SV
Sinh Viên NEU
CTVVIP
13 tháng 9 2025
Question I. Choose the best answer A, B, C or D to complete the sentences.(10 pts)
21. My brother is…………………I am.
A. twice older than B. as twice old as C. twice as old as D. twice as old
22. Let’s go out for a walk, ................... ?
A. do we B. don’t we C. won’t we D. shall we
23. These are our books. They are …………..English.
A. in B. by C. from D. of
24. ……………they spent a lot of money on the film, it wasn’t a big success
A. However B. Nevertheless C. Despite D. Although
25.The Internet is ……………………………… useful invention of modern life.
A. a B. an C. the D. Ø
NV
8
GL
5 tháng 8 2023
The sun, water and the wind are (23) ________ alternative sources of energy. This energy power coming from the nature is the kind of clean energy (24) ________ there is lots of it in the atmosphere. Unfortunately, if the wind doesn’t blow on hot days, there is no wind energy. When water (25)______ from a high place to a lower place, it makes energy. This energy is used to create electricity. Moreover, water power gives energy (26) ________ pollution. As you know, it becomes expensive because we have to build dams to store water. Unlike those two kinds of energy, the sun provides the large (27) _________ energy every day. It is not costly, so we can place the solar (28) ______ on the roof of the houses which receive the solar energy for use.
23. A. another B. others C. other D. each other
24. A. so B. and C. but D. or
25. A. moves B. hits C. collapses D. takes
26. A. without B. in C. from D. out of
27. A. number of B. many of C. amount of D. quality of
28. A. boards B. aircrafts C. funnels D. panels
Answers: 23.............. 24.............. 25.............. 26.............. 27............... 28..............
VIII. Rearranging the group of words in a correct order to make complete sentences. (0.5pt)
35. when/ English/ you / It is/speak / a native speaker / not easy / to //.
36. we’ll / no fuels / to use / Stop / electricity / or / have / wasting //.
Answers: 35. It is not easy to speak English when you are not a native speaker.
36. Stip wasting electricity or we'll have no fuels to use.
IX. Rewrite each of the following sentence in another way so that it means almost the same as the sentence printed before it: (1pt)
37. He was allowed to go out but he wanted to stay home.
Although he was allowed to go out, he wanted to stay home.
38. Edison was a great scientist. He invented the electric light bulb.
Edison, who was a great scientist, invented the electric light bulb.
39. Why don’t you make posters on energy saving?
I suggested that you should make posters on energy saving.
40. They began using that computer three months ago.
That computer has been used for three months.
5 tháng 8 2023
I. Choose the word that does not have the same pronunciation of the underlined part as that of the rest. (0.5pt)
1. A. hug B. humor C. dump D. junkyard
2. A. deposit B. course C. mass D. advance
Answers: 1.............. 2..............
II. Choose the word that does not have the same stressed syllable as that of the rest. (0.5pt)
3. A. desreuction B. festival C. occasion D. economy
4. A. joyful B. cloudy C. abrupt D. nervous
Answers: 3.............. 4.............
III. Choose the word (A, B, C, or D) that best fits the space in each sentence. (2.5pts)
5. The earthquake ___ erupted seriously last night damaged hundreds of houses in this town.
A. whose B. this C. who D. which
6. Remember to__________ the table lamp before going to bed, Kid!
A. switch off B. go on C. drop off D. turn up
7. The final match of The U23 Asia Soccer Champion __________ in China.
A. has occurred B. took place C. is happening D. will appear
8. That kind of new Samsung products has been advertised ___________.
A. nationally B. nationwide C. national D. internationally
9. We felt very disappointed __________ the movie.
A. of B. on C. with D. from
10. During Tet holidays, HCM city held a lot of ____ activities to welcome New Year 2021.
A. cultural B. household C. natural D. generous
Chúc bạn thi tốt, môn Toán trường mình khó lắm chắc chỗ cậu cũng vậy. Chúc bạn thành công.
\(Best\)\(friend\)\(forever\)
Mãi mãi chúng ta là bạn tốt