K
Khách

Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.

1.Read the text about snacks in Germany, Brazil and Japan. Complete the blanks with a/an, some, any or  (no word).      Susan (from Germany): “Well, I often have (51)                      snack at about eleven inthe morning. I usually go to a kiosk near here and buy (52)                                sausage, and then I eat it, standing up at a small table near the kiosk. Then at about four o’clock we usually stop work and have (53)              cup of coffee and...
Đọc tiếp

1.Read the text about snacks in Germany, Brazil and Japan. Complete the blanks with a/an, some, any or  (no word).

      Susan (from Germany): “Well, I often have (51)                      snack at about eleven inthe morning. I usually go to a kiosk near here and buy (52)                                sausage, and then I eat it, standing up at a small table near the kiosk. Then at about four o’clock we usually stop work and have (53)              cup of coffee and (54)                       cakes.”

Renato (from Brazil): “I don’t usually have (55)                       food in the middle of themorning, but in the afternoon, at about five o’clock, I sometimes have a coffee. Yesterday, forexample, I had (56)             loaf of bread and (57)                                     cheese. I get veryhungry in the afternoons! Oh, yes. and I had (58)                         iced tea. You can buy it at thebeach or on the streets – it’s very popular in Brazil.”

Mariko (from Japan): “In Japan we eat food from all over the world, and young people like European snacks. Older people like more traditional food. For example, every afternoon,my grandfather has (59)               Japanese sweets with traditional green tea. At work, onweekdays we usually have a ‘three o’clock snack’. Today I had (60)                     biscuits andtea, but no milk! I find it very strange that English people have milk in their tea!”

2.Find the word which has a different sound in the part underlined.

A. indicate                   B. mistake                        C. take                        D.says

0
23 tháng 2 2020

1. How many
2. How many

23 tháng 2 2020

1. how many
2. how many
Hok tốt

I, Hoàn thảnh các câu sau:1. How about cycling to school with me tomorrow? (CYCLE)    Let’s _________________________________________.2. What is the meaning of this road sign? (MEAN)    What ___________________________________________?3. Accident is the main cause of traffic jams in Bangkok. (CAUSED)    Traffic jams in Bangkok ____________________________________________.4. People will be fined if they don’t obey the traffic rules. (DISOBEY)    People will be fined...
Đọc tiếp

I, Hoàn thảnh các câu sau:

1. How about cycling to school with me tomorrow? (CYCLE)
    Let’s _________________________________________.

2. What is the meaning of this road sign? (MEAN)
    What ___________________________________________?
3. Accident is the main cause of traffic jams in Bangkok. (CAUSED)
    Traffic jams in Bangkok ____________________________________________.
4. People will be fined if they don’t obey the traffic rules. (DISOBEY)
    People will be fined __________________________________________.
5. I spend 30 minutes walking to school every day. (TAKES)
    It _________________________________________.

II. Choose the best option to complete each sentence. Circle A, B, C or D.

1. _________ are usually hilarious. 

    A. Tragedies

B. Comedies

C. Documentaries               D. Soap Operas

2. In many festivals, people ______ through streets singing and dancing.

    A. parade

B. march

C. run                                  D. crawl                     

3. Choose the word whose stressed is different from the others’.

    A. license

B. famous

C. describe                          D. festival

4. The boy was so ________that he has won two prizes.

    A. amazing

B. amazement

C. amazed                            D. amazes

5. On the ______ season, people in the village wear traditional clothes.

    A. festival

B. festive

C. festivity                           D. festivities

6. The ticket price ___________ since the last few years.

    A. is rising

B. rose

C. will rise                           D. has risen

7. Tom Hanks isn’t an attractive ________, compared to others in Hollywood

A. actor        B. action        C. actress        D. acting 

8. Does your bike ever __________on the way to school?

A. break up        B. break in        C. break down    D. break on

9. A(n) ____________ is a film that tells an exciting story about murder or crime.

A. sci-fi        B. horror        C. thriller        D. action

10. Choose the word whose main stressed syllable is placed differently from that of the others: 

A. describe        B. convince        C. image        D. display    

11. Jenny is talking to Susan after school: “Let's go to the cinema this evening.”/ -  Susan: “ ______ ”

A. You went to the theatre.            B. Let's take the seat.

C. We don't have any film.            D. I've seen the film already.

12. Choose the word that has the underline part pronounced differently

A. raised        B. stretched        C. danced        D. laughed

13. Children must learn about__________ before they are allowed to ride a bike on the roads.

A. safe roads        B. road safe        C. a safe road        D. road safety

0
23 tháng 2 2020

A B C K I H M

A/ c tự kí hiệu góc ạ :))

P/s: Câu a phải kẻ các đường vuông góc luôn ạ :> Không thì phải để ý b lên trước 

a) Xét △KBH và △KBM có:

KHB = KMB (= 90o)

BK: chung

KBH = KBM (KB: phân giác HBM)

=> △KBH = △KBM (ch-gn)

=> KH = KM (2 cạnh tương ứng) (*)

Xét △ICK và △MCK có:

CIK = CMK (= 90o)

CK: chung

KCI = KCM (CK: phân giác ICM)

=> △ICK = △MCK (ch-gn)

=> KM = KI (2 cạnh tương ứng) (**)

Từ (*) và (**) => KH = KI =KM

b) Xét △AKH và △AKI có:

AHK = AIK (= 90o)

AK: chung

KH = KI (cm câu a)

=> △AKH = △AKI (ch-cgv)

=> KAH = KAI (2 góc tương ứng)

=> AK là phân giác BAC

c) Nhận xét:

Ba đường phân giác của một tam giác cùng đi qua một điểm. Điểm này cách đều ba cạnh của tam giác đó.

 

23 tháng 2 2020

Ta có: \(a^2+b^2+c^2=m^2+n^2+p^2\)

\(\Rightarrow a^2+b^2+c^2+m^2+n^2+p^2=2\left(m^2+n^2+p^2\right)\)

Vì \(2\left(m^2+n^2+p^2\right)⋮2\)\(\Rightarrow a^2+b^2+c^2+m^2+n^2+p^2⋮2\)(1)

Vì tích hai số tự nhiên liên tiếp chia hết cho 2 nên:

\(a\left(a-1\right)+b\left(b-1\right)+c\left(c-1\right)+m\left(m-1\right)\)

\(+n\left(n-1\right)+p\left(p-1\right)\)là số chẵn

\(\Rightarrow\left(a^2+b^2+c^2+m^2+n^2+p^2\right)-\left(a+b+c+m+n+p\right)⋮2\)(2)

Từ (1) và (2) suy ra a + b + c + m + n + p chia hết cho 2

Mà a + b + c + m + n + p > 2 ( do a,b,c,m,n,p dương) nên a + b + c + m + n + p là hợp số (đpcm)