Cho \(\Delta ABC\)vuông tại A ( AB < AC ) . Trên tia đối của tia AB , lấy điểm E sao cho AE = AC . Trên tia đối của AC , lấy điểm D sao cho AD = AB .

a) Chứng minh : \(\Delta ABC=\Delta ADE\).

b) Tia \(AH\perp BC\)tại K . Chứng minh \(\widehat{BAH}=\widehat{ACH}\)

c) Tia HA cắt DC tại K . Chứng minh K là trung điểm của De

d) Chứng minh BD // CE và \(BD+CE=BE\sqrt{2}\)

Chọn từ có cách phát âm khác

1. A. school                            B. chair                                   C. chemistry                 D. character

2. A. serious                           B. symptom                             C. sugar                        D. sauce

3. A. order                              B. novel                                   C. portable                   D. score          

4. A. coop                              B. cartoon                                C. stool                         D. indoors

Chọn từ có trọng âm khác ( 2đ)

1. A. complete                        B. detective                             C. gather                      D. event

2. A. mixture                          B. allow                                   C. affect                       D. disease

3. A. exit                                B. cushion                               C. turtle                        D. improve

4. A. museum                         B.  useful                                C. cavity                      D. wedding

Điền dạng đúng của động từ ( 3đ)

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

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

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

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

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

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

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

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

Điền vào ô trống , 1 ô 1 từ (4đ)

Many people nowadays have to wear false teeth when they was middle-aged.

Since the beginning of this century,(1)………………decay has greatly increased. The amount(2) ………………sugar in our food has also increased Doctors and dentists now know that(3)……………………..is the chief cause of tooth(4) ……………. Eskimos’ teeth, for example, started to(5)……….when they began to eat sweet(6)……………...Long ago doctors did not like(7)………treat people’s teeth. Barbers and blacksmiths(8)…………….after people’s teeth and pulled them(9)…………when they decayed. Some people thought(10)…………………………….was a punishment from the gods.

Thời gian trao thưởng : 2/1/2019

Vòng 1 cuộc thi tiếng anh 7 ( mọi lớp có thể tham gia)

Section I: Choose the word which has the underlined part pronounced differently from the others.

1. A. school                            B. chair                                   C. chemistry                 D. character

2. A. serious                           B. symptom                             C. sugar                        D. sauce

3. A. order                              B. novel                                   C. portable                   D. score          

4. A. coop                              B. cartoon                                C. stool                         D. indoors

Section II. Choose the word that has different stress from others.

1. A. complete                        B. detective                             C. gather                      D. event

2. A. mixture                          B. allow                                   C. affect                       D. disease

3. A. exit                                B. cushion                               C. turtle                        D. improve

4. A. museum                         B.  useful                                C. cavity                      D. wedding

Section III: Give the correct form of the words in brackets.

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

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

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

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

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

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

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

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

Section IV: Read the  passage and write ONE suitable word for each space. 

Many people nowadays have to wear false teeth when they was middle-aged.

Since the beginning of this century,(1)………………decay has greatly increased. The amount(2) ………………sugar in our food has also increased Doctors and dentists now know that(3)……………………..is the chief cause of tooth(4) ……………. Eskimos’ teeth, for example, started to(5)……….when they began to eat sweet(6)……………...Long ago doctors did not like(7)………treat people’s teeth. Barbers and blacksmiths(8)…………….after people’s teeth and pulled them(9)…………when they decayed. Some people thought(10)…………………………….was a punishment from the gods.

Giải thưởng:

Giải nhất: 50 k

Giải nhì : 30 k

Giải ba : 20k

Giải kk: 10k

Cuộc thi tiếng anh do mình tổ chức nha. Mong các bạn ủng hộ và tài trợ.

Vòng 1 :

Section I: Choose the word which has the underlined part pronounced differently from the others.

1. A. school                            B. chair                                   C. chemistry                 D. character

2. A. serious                           B. symptom                             C. sugar                        D. sauce

3. A. order                              B. novel                                   C. portable                   D. score          

4. A. coop                              B. cartoon                                C. stool                         D. indoors

Section II. Choose the word that has different stress from others.

1. A. complete                        B. detective                             C. gather                      D. event

2. A. mixture                          B. allow                                   C. affect                       D. disease

3. A. exit                                B. cushion                               C. turtle                        D. improve

4. A. museum                         B.  useful                                C. cavity                      D. wedding

Section III: Give the correct form of the words in brackets.

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

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

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

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

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

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

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

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

Section IV: Read the  passage and write ONE suitable word for each space. 

Many people nowadays have to wear false teeth when they was middle-aged.

Since the beginning of this century,(1)………………decay has greatly increased. The amount(2) ………………sugar in our food has also increased Doctors and dentists now know that(3)……………………..is the chief cause of tooth(4) ……………. Eskimos’ teeth, for example, started to(5)……….when they began to eat sweet(6)……………...Long ago doctors did not like(7)………treat people’s teeth. Barbers and blacksmiths(8)…………….after people’s teeth and pulled them(9)…………when they decayed. Some people thought(10)…………………………….was a punishment from the gods.

Mọi thông tin chi tiết liên hệ mình nha.

Giải thưởng:

Giải nhất: 50 k

Giải nhì : 30 k

Giải ba : 20k

Giải kk: 10k

Mong các bạn hưởng úng nhiệt tình .

Lưu ý mỗi thành viên chỉ được gửi bài 1 lần.