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25 tháng 6 2020

Làm

a) Xét hai tam giác vuông NMD và tam giác vuông NED có :

ND là cạnh chung

góc MND = góc END ( gt )

Do đó : tam giác NMD = tam giác NED ( cạnh huyền - góc nhọn )

b) Theo câu a) ta có : Tam giác NMD = tam giác NED 

=> +) NM = NE nên N thuộc đường trung trực của ME 

+) DM = DE nên D thuộc đường trung trực của của ME 

Vậy ND là đường trung trực của ME

Vì phần c của cậu sai đề ( nối B với F nhưng đề bài k có B )

Còn phần d thì chưa đủ ý để tìm đc  MD

HỌC TỐT

25 tháng 6 2020

                                              Bài giải

M N P D E

Bài bạn kia làm đúng rồi nha !

I / HOW ARE YOU II Cho dạng đúng của động từ trong ngoặc. 1. When my brother and I (be).....................................................children, we (have).........................................................two cats and a dog.2. It's 8.00 now. We (learn).............................................................math.At 9.00, we (have).........................................................a history class.3. Lien's brother is an architect but he (not...
Đọc tiếp

I / HOW ARE YOU

 

II Cho dạng đúng của động từ trong ngoặc. 

1. When my brother and I (be).....................................................children, we (have).........................................................two cats and a dog.

2. It's 8.00 now. We (learn).............................................................math.

At 9.00, we (have).........................................................a history class.

3. Lien's brother is an architect but he (not work).............................at the moment.

4. How much it (cost)......................................... to mail a letter to England?

5. We are decorating our house because we (have).......................a birthday party tonight.

6. They (travel).................................................to the USA next month

7. Would you like me (help)..............................you with your homework tonight?

8. My sister gets used to (go).....................................out on Saturday nights.

III. Chọn đáp án đúng để hoàn thành các câu sau. 

1. Playing chess after dinner sounds...................... to me.

A. boring B. bored C. boringly D. boredom

2. We may know the land very well, but we know very................. about the oceans.

A. few B. little C. much D. a little

3. I received a letter....................my friend yesterday.

A. from B. by C. on D. at

4. As a child, he............................ his parents.

A. ought obey B. ought obeying C. ought to obey D. ought to obeying

5. She needed..................................these postcards to her friends.

A. to send B. sending C. sent D. sends

6. Hung and his brother............................. at home yesterday.

A. didn't are B. wasn't C. weren't D. not were

7. She talked to her friends.............................her vacation in da lat.

A. about B. on C. with D. for

8. He caused an accident because he was driving too...........................

A. fastly B. fast C. very fast D. much fast

9. Of all the students in my class, Nam is............................

A. tallest B. taller C. tall D. the tallest

10........................... my next birthday.

A. I am 14 on B. I will be 14th C. I will be 14 on D. I am going to be 14 on

11. Are there........................ for me this morning?

A. any letters B. Letter C. any letter D. some letters

12. My father is a......................... football player.

A. skill B. skilled C. skillfully D. skillful

13. My sister doesn't want to drink coffee,and.........................

A. I do either B. I do, too C. so do I D. neither do I

14. Tuan is a good student. He always answers the teacher's questions.........

A. quick B. quickly C. too quick D. very quick

15. Living in the city is.......................than in the countryside.

A. more noisy B. noisier C. noisyer D. less noisy

IV. Cho dạng đúng của từ trong ngoặc. 

1. My sister has a big.....................................................of stamps. (Collect)

2. My favorite subject at school is physical........................................ (educate)

3. The most popular............................................at recess is talking. (act)

4. What a......................................................................picture! (wonder)

5. I live in a........................................................house by the sea. (Love)

6. My friend and I write to each other.............................................. (regular)

7. Guitar is a..............................................................instrument. (music)

8. I have............................................time to play than my friends do. (little)

9. You should do morning exercises to have a.................................body. (health)

10. Where is the.............................................................restaurant? (near)

2
25 tháng 6 2020

I

I'm fine , thank you!

II

1. were/ had                                                             5. are going to have 

2. are learning/ will have                                         6. will travel 

3. isn't working                                                          7. to help 

4. does it cost                                                             8. going

III

1A                  6C                      11A

2 B                 7A                      12D

3 A                  8B                       13D

4C                   9D                        14D

5A                   10C                       15B

IV

1. collection                             2. education

3. activity                                 4. wonderful

5. lovely                                    6. regularly

7. musical                                 8. less

9. healthy                                  10. nearest

I / HOW ARE YOU

I'm fine, thank you.

II Cho dạng đúng của động từ trong ngoặc. 

1. When my brother and I (be) were children, we (have) had two cats and a dog.

2. It's 8.00 now. We (learn) are learning math.

At 9.00, we (have) will have a history class.

3. Lien's brother is an architect but he (not work) isn't working at the moment.

4. How much it (cost) does it coat to mail a letter to England?

5. We are decorating our house because we (have) are going to have a birthday party tonight.

6. They (travel) will travel to the USA next month

7. Would you me (help) to helf you with your homework tonight?

8. My sister gets used to (go) going out on Saturday nights.

III. Chọn đáp án đúng để hoàn thành các câu sau. 

1. Playing chess after dinner sounds ............to me.

A. boring B. bored C. boringly D. boredom

2. We may know the land very well, but we know very................. about the oceans.

A. few B. little C. much D. a little

3. I received a letter....................my friend yesterday.

A. from B. by C. on D. at

4. As a child, he............................ his parents.

A. ought obey B. ought obeying C. ought to obey D. ought to obeying

5. She needed..................................these postcards to her friends.

A. to send B. sending C. sent D. sends

6. Hung and his brother............................. at home yesterday.

A. didn't are B. wasn't C. weren't D. not were

7. She talked to her friends.............................her vacation in da lat.

A. about B. on C. with D. for

8. He caused an accident because he was driving too...........................

A. fastly B. fast C. very fast D. much fast

9. Of all the students in my class, Nam is............................

A. tallest B. taller C. tall D. the tallest

10........................... my next birthday.

A. I am 14 on B. I will be 14th C. I will be 14 on D. I am going to be 14 on

11. Are there........................ for me this morning?

A. any letters B. Letter C. any letter D. some letters

12. My father is a......................... football player.

A. skill B. skilled C. skillfully D. skillful

13. My sister doesn't want to drink coffee,and.........................

A. I do either B. I do, too C. so do I D. neither do I

14. Tuan is a good student. He always answers the teacher's questions.........

A. quick B. quickly C. too quick D. very quick

15. Living in the city is.......................than in the countryside.

A. more noisy B. noisier C. noisyer D. less noisy

IV. Cho dạng đúng của từ trong ngoặc. 

1. My sister has a big collection of stamps. (Collect)

2. My favorite subject at school is physical education (educate)

3. The most popular activity at recess is talking. (act)

4. What a wonderful picture! (wonder)

5. I live in a lovely house by the sea. (Love)

6. My friend and I write to each other regularly (regular)

7. Guitar is a musical instrument. (music)

8. I have less time to play than my friends do. (little)

9. You should do morning exercises to have a healthy body. (health)

10. Where is the nearest restaurant? (near)

Question II : Put the correct form of the verb in brackets : 1. He usually ( go ) ..... fishing on Saturdays 2. My brother used to ( go ) .... to work by motorbike . Now he cycles . 3. How about ( see )..... a movie on Sunday evening ? 4. An didn"t used ( play) ..... football in the afternoon . Now he often does it .5. Nam ( learn )..... English for 8 years . 6. Last night , my father ( watch) ..... TV . 7. Ba ( visit ) .... to Ha Long Bay this summer vacation .8. I like ( work ) ..... as...
Đọc tiếp

Question II : Put the correct form of the verb in brackets : 

1. He usually ( go ) ..... fishing on Saturdays 

2. My brother used to ( go ) .... to work by motorbike . Now he cycles . 

3. How about ( see )..... a movie on Sunday evening ? 

4. An didn"t used ( play) ..... football in the afternoon . Now he often does it .

5. Nam ( learn )..... English for 8 years . 

6. Last night , my father ( watch) ..... TV . 

7. Ba ( visit ) .... to Ha Long Bay this summer vacation .

8. I like ( work ) ..... as a volunteer for that orphanage .

C . READING 

I . Read the passage and choose the correct answer A,B,C or D 

Who are the best drivers ? Which drivers are the safest on the roads ? According to a recent survey , young and inexperienced drivers are the most likely to have an accident . Older drivers are more careful . Young men have the worst accident recods of all . They often choose faster cars with bigger engines . One of the most interesting facts in the survey is that passengers have an effect on the driver . When young male drivers have their friends in the car , their driving become worse . When their wife or girlfriend is in the car , however , their driving is better . But opposite is true for women . Their driving is more dangerous when their husband or boyfrirnd is in the car .

1. According to the survey , who are the most likely to have an accident ? 

A . Young and experienced drivers                                                    B. Old and inexperienced drivers 

C. Young and old drivers .                                                                  D. Young and inexperienced drivers 

2. Young men often choose .........................................................

A. expensive cars .                                                                             B. fast cars with big engines .

C. slow cars with big engines                                                             D. fast car with small engines 

3. Who have an effect on the driver ? 

A. passengers                          B. policemen                         C. children                           D. journalists.

4. When young male drivers have the wife of girlfriends in the car , their driving becomes ...................................

A. worse                                  B. better                                  C. more dangerous                   D. faster 

Question II : Read the follwing text carefully and choose the correct answer A,B,C or D for each of the gap . 

When you are in Singapore , you can go about (1) ........... taxi , by bus , or by underground . I myself the underground (2)............ it is fast , easy and cheap . There are (3) ........ buses and taxi in Singapore and one cannot drive along the road (4)....... and without many stops , especcially on the Monday morning . The underground is therefore usually quicker (5) ............ taxis or buses . If you do not know Singapore very well , it is difficult (6)........ the bus you want . You can take a taxi , but it is (7) ........... expensive than the underground or a bus . On the underground , you find good maps that tell you the names of the stations and show you (8).......... to get to them , so that it is easy to find your way .

1.A. at                                  B. in                               C. by                        D. on 

2.A . but                               B. because                     C. when                   D. so 

3.A. many                            B. a lot                             C. few                     D. some 

4.A. quick                            B. quickly                        C. quicker                D. quickest 

5.A. so                                 B. like                             C. than                     D. as 

6.A.to find                             B. find                             C.finding                 D. found 

7.A.less                               B. more                            C. most                   D. much 

8.A. who                              B. what                             C. when                  D. how 

Question III : Read the passage and tick  True or Fales .

Energy is fundament to human beings . Many poor people in developing countries do not have modern sourcees of energy like electricity or natural gas , with which their life can be improved .

People who live in mountainous areas have to gather wood for fuel . This takes a lot of time . For many people living in rural areas , biogas is the largest energy resource available . The main use of biogas is for cooking and heating , but it can also provide energy for public transport . As biogas is smoke - free , it helps the problem of indoor air pollution . Moreover , it is made from plant waste and animal manure . They cost almost nothing . 

The tendency to use renewable sources in developing sources in developing countries in on the increase as non - renewble ones are running out . In the futere , the wind and the sun will be uses as the most important envvironmentally friendly energy sources .

True or False ? 

1. Non - renewable sources are being used up                                              | True | False 

2. Many poor people in developing countries do not have little electricity      | True  | False 

3. Biogas is a new source of energy available for poor people .                     | True  | False 

4. Biogas creates a lot of smoke                                                                     | True   | False 

5. The new energy source is not costly                                                           | True   | False 

D. WRITING 

I . Rewrite these following sentences using given words .

1. What is the distance between Vinh and Ha Noi city ? 

=> How.....................................................................................?

2. I often walked to shool when I was a student . 

=> I used .................................................................................

3. Although they are short , they still love playing sports .

=> In spite of ..........................................................................

4. We will use less electricity in the future 

=>Less electricity ....................................................................

5. This is my computer 

=> This computer is ................................................................

II. Make questions for the underlined parts in each following sentence : 

1. It " s about 8 km  from my house to shool . 

=>................................................................................................

2. Yestesday , I went to Duc Hoang  Festival with my friends .

=> ...............................................................................................

3. Yesterday  , I went to Duc Hoang Festival with my friends 

=> ..............................................................................................

1
24 tháng 6 2020

1.goes       2.go.... . now he cycling       3.seeing        . câu cuối của câu 2 sai rồi      

24 tháng 6 2020

Dung went to Nha Trang with her family on vacation last week. She stayed at a hotel on the side of the beach. In the early morning, she went to the sea and swam for an hour. Then she had breakfast in the food stall on the beach to enjoy fresh air in the morning. In the afternoon, she took some photos of the sights. She stayed in Nha Trang for four days and took of a lot of nice photos. She also bought some postcards and souvenirs for her friends. It was a great vacation because she had a lot of fun.

24 tháng 6 2020

1. awake                                                                5. unhealthy 

2. addition                                                              6. unpleasant 

3. painful                                                                7. disappear 

4. heated                                                                8. less

1. The noise in the city kept Hoa………awake……….at night. (Wake)

2. In……addition……….to that, my bike tires was flat. (Add)

3. Mr. Tan has a very…………paintful……………….tooth. (Pain)

4. Then, Thanh……heated………..a pan and stir-fried the beef. (Hot)

5. Sugar is not an…………unhealthy……….food because we need it to live. (Health)

6. Catching the common cold is………unpleasant………for every body. (Please)

7. Don’t worry! Your cold will last for a few days and then………disappear……. (Appear)

8. I have……less………..time to play than my friend. (Little)

24 tháng 6 2020

Hiện tại đơn: S + am/is/are + P2

Tương lai đơn: S + will + be + P2

Quá khứ đơn: S + was/were + P2

Question I : Choose the correct answer to complete each following sentence by circling A,B, C or D 1. Linda used to ____ moring exercise when she got up early A . did                                       B . does                                     C. doing                                D . do 2. My mum _____ the bus to work every day , but I cycle . A . catches                               B . drives           ...
Đọc tiếp

Question I : Choose the correct answer to complete each following sentence by circling A,B, C or D 

1. Linda used to ____ moring exercise when she got up early 

A . did                                       B . does                                     C. doing                                D . do 

2. My mum _____ the bus to work every day , but I cycle . 

A . catches                               B . drives                                     C. goes                               D. runs 

3. You should look right and left when you go ____ the road 

A. down                                    B . across                                   C. up                           D.along 

4. But is the mani public ____ in Viet Nam 

A. travel                                   B. tricycle                                  C.   trasport                            D. vehicle 

5. The play we so boring .____, An saw it from beginning to end .

A. Therefore                            B. Despite                                    C. However                         D. Although 

6. She sure that they will find the film ______. 

A. entertaining                          B. entertain                                 C. entertainment                   D. entertained 

7. - ' Do you like seeing a film? " - "_______________"

A. No, I don't like it at all                                 B. Sure . What film shall we see ?

C. Who is in it ?                                              D. I" m sorry , I can"t .

8. _________ being frightened by the images , Lan still liked the film so much .

A. In spite                        B. Despite                    C. Although                   D. Nevertheless

9.__________ is La Tomatina celebrated ? _ Every August 

A. Where                        B. Why                           C. When                        D. Which 

10. My father liked the________ of that singer 

A. perfrom                     B. performer                      C. performance             D. preforming 

11. Dose your bike ever ________ down on the way to shool .

A. break                         B. take                               C . do                           D. turn 

12. I______ go on foot when I was in primary school

A. used to                      B. break                             C. can                          D . may 

13. Give a_______ before you turn left or right . 

A. signal                       B. turn                                C. sound                        D. sign 

14. A lot of dancers go to Rio de Janeiro to _______ the Carnival .

A. attend                      B.join                                 C. perform                      D. appear 

15. _______ the film was gripping , Tom slept from beginning to end .

A. Therefore                B. Despite                            C. However                    D. Although 

 

2
23 tháng 6 2020

Bài làm:

1.D

2.A

3.B

4.C

5.C

6.A

7.B

8.B

9.C

10.C

11.A

12.A

13.D

14.A

15.D

Học tốt!!!!

Question I : Choose the correct answer to complete each following sentence by circling A,B, C or D 

1. Linda used to ____ moring exercise when she got up early 

A . did                                       B . does                                     C. doing                                D . do 

2. My mum _____ the bus to work every day , but I cycle . 

A . catches                               B . drives                                     C. goes                               D. runs 

3. You should look right and left when you go ____ the road 

A. down                                    B . across                                   C. up                           D.along 

4. But is the mani public ____ in Viet Nam 

A. travel                                   B. tricycle                                  C.   trasport                            D. vehicle 

5. The play we so boring .____, An saw it from beginning to end .

A. Therefore                            B. Despite                                    C. However                         D. Although 

6. She sure that they will find the film ______. 

A. entertaining                          B. entertain                                 C. entertainment                   D. entertained 

7. - ' Do you seeing a film? " - "_______________"

A. No, I don't it at all                                 B. Sure . What film shall we see ?

C. Who is in it ?                                              D. I" m sorry , I can"t .

8. _________ being frightened by the images , Lan still d the film so much .

A. In spite                        B. Despite                    C. Although                   D. Nevertheless

9.__________ is La Tomatina celebrated ? _ Every August 

A. Where                        B. Why                           C. When                        D. Which 

10. My father d the________ of that singer 

A. perfrom                     B. performer                      C. performance             D. preforming 

11. Dose your bike ever ________ down on the way to shool .

A. break                         B. take                               C . do                           D. turn 

12. I______ go on foot when I was in primary school

A. used to                      B. break                             C. can                          D . may 

13. Give a_______ before you turn left or right . 

A. signal                       B. turn                                C. sound                        D. sign 

14. A lot of dancers go to Rio de Janeiro to _______ the Carnival .

A. attend                      B.join                                 C. perform                      D. appear 

15. _______ the film was gripping , Tom slept from beginning to end .

A. Therefore                B. Despite                            C. However                    D. Although 

22 tháng 6 2020

Traffic safety and traffic that the world now needs to pay attention. it is not only the most important factors crucial to the development and survival of a nation, a territory but a junction of trade between regions of countries, cultures on world together. In advanced countries, the situation and development of their traffic is quite developed with a dense transport network and is regulated, but in Vietnam, … Urban transport situation in Vietnam is extremely chao. On average there are thousands of cases every year in traffic accidents, causing serious loss of life and property. Despite being upgraded and renovated several times but the transport system of Vietnam has not improved as much. Traffic jams occur repeatedly in large cities damaging hundreds of billion per year, not only that the injuries related to traffic accidents is also increasing, especially head injuries , spine. Circulation of vehicles on roads, railways, waterways each year but with increasing road infrastructure can present data to help the traffic situation.

=> Bài dịch: An toàn giao thông là vấn nạn mà các nước trên toàn thế giới đang cần phải chú ý nhiều hơn. Nó không chỉ là yếu tố quan trọng nhất quyết định đến sự phát triển và tồn tại của một quốc gia, một vùng lãnh thổ mà là một mối liên kết trong thương mại giữa các vùng của quốc gia, là phương tiện kết nối các nền văn hóa trên thế giới. Ở các nước tiên tiến, tình hình và phát triển giao thông của họ đang khá phát triển với một mạng lưới giao thông dày đặc và vô cùng quy củ, nhưng ở Việt Nam, … tình hình giao thông đô thị tại Việt Nam có thể nói là vô cùng hỗn loạn. Tính trung bình có hàng ngàn trường hợp tai nạn giao thông đáng thương tâm xảy ra tại Việt Nam, gây thiệt hại nghiêm trọng về người và của. Mặc dù đang được nâng cấp và được trùng tu nhiều lần nhưng hệ thống giao thông của Việt Nam chưa được cải thiện nhiều. Ùn tắc giao thông xảy ra nhiều lần ở các thành phố lớn không chỉ làm thiệt hại hàng trăm tỷ đồng mỗi năm mà còn gây ra các tổn thương nghiêm trọng về sức khỏe như chấn thương đầu, cột sống,… . Lưu thông trên đường bộ, đường sắt, đường sông mỗi năm một tăng nhưng cơ sở hạ tầng lại chưa được quan tâm một cách đúng mức dẫn đến cung không đủ cầu. Đây chính là mối quan tâm nà nhà nước và chính phủ việt Nam phải tìm ra hướng giải pháp nhanh chóng.

22 tháng 6 2020

Study well !

11 tháng 8 2020

Write a paragraph, using the following set of words or phrases

1.  Yesterday, / Hoa / get up / and put / her clean clothes.

=> Yesterday, Hoa wake up and put her clean clothes.

2. She / have / breakfast / and then / she bush / teeth.

=> She has breakfast and then she brushes her teeth.

3. At recess,  / she drink / some water and  / talk / her friends.

=> At recess, she drank some water and talked with her friends.

4. At home, / she change / into red pants and / put / her sandals.

=> At home, she changed into red pants and put her sandals.

5. Finally, / she / do homework / and / go to bed / 9:30 p.m.

=>Finally, she did homework and went to bed at 9.30p.m

6. Last week, The Robinson family / go / the / Aquarium.

=> Last week, The Robinson family went to the Aquarium

7. They / see / sharks / dolphins / turtles / many / colorful / kinds / fish.

=> They saw sharks dolphins, turtles and many colorful kinds fish.

8. They / be / a souvernir shop / near / the exit / the aquarium.

=> They were a a souvernir shop near the exit at the aquarium.

9. Mr.Robinson / buy / Liz / cap.

=>Mr. Robinson bought a cap for Liz.

10. Mr.Robinsons / buy / poster.

=>Mr. Robinson bought a poster.

21 tháng 6 2020

 Yesterday, Hoa got up and put her clean clothes. She had breakfast and then she brushed her teeth. At recess, she drank some water and talked with her friends. At home, she changed into red pants and put her sandals. Finally, she did homework and went to bed at 9:30 p.m.

 Last week, The Robinson family went to the Aquarium. They saw sharks, dolphins, turtles and many colorful kinds of fish. There was a souvenir shop near the exit of the aquarium. Mr.Robinson bought to Liz a cap. Mr.Robinson bought a poster.

P/s: Một số chỗ còn sai. Ở câu 8 mk thấy khá bất hợp lí và tra google thì thấy There/ be là hợp lí hơn. Còn đề bài của bạn đúng như vậy thì mk không làm được. Cũng ở câu 8, từ souvenir bạn viết thừa "r". Mk cũng không khẳng định là bài của mk hoàn toàn đúng. Bạn có thể tham khảo thôi.

Linz