1B

2D

3D (mình nghĩ vậy! hay là A nhỉ?)

4D

5D

1B

2D

3A

4D

5D

1. B

2. D

3. A

4. D

5. D

C

D

B

1) b,nationality

2) d,climb

3) a,song

1. C
2. B

3. A

1 C

2 D

3 D

4 C

5 A

1. A. fine                B. large                 C. not                     D. early

2. A. grass             B. vegetable         C. tree                    D. school

3. A. capital           B. city                    C. countryside        D. apartment

4. A. by                  B. at                      C. taxi                     D. from

5. A. went              B. leave                 C. finish                  D. start

C
D
D
C
A

1 a computer

2 d smell

3 d house

4 a trave

D

d

1B;2A;3A;4D;5C;6B;7D;8B;9D;10C

Bài 1: Em hãy khoanh tròn chữ cái chỉ một từ khác với các từ còn lại:

1. A. football B. song C. tennis D. badminton

2. A. Vietnamese B. April C. Australian D. American

3. A. picture B. red C. black D. green

4. A. teacher B. nurse C. cooker D. cook

5. A.Vietnam B. Singapore C. American D. England

6. A.nice B. take C. thin D. big

7. A. write B. sing C. read D. friend

8. A. shirt B. letter C. blouse D. dress

9. A. am B. is C. are D. an

10. A. white B. green C. sing D. red

11. A. week B. year C. month D. we

12. A. sometimes B. always C. often D. now

Bài 2: Choose the correct answer

1. Are you a student or a teacher?

a. Yes, I am b. No, I am not c. I’m a student d. Yes, I

2. ……..down, please ! a. Sit b. Open c. Close d. Stand

3. ……..up please ! a. Sit b. Open c. Close d. Stand

4. What is ………favourite colour ? I like red. a. his b. her c. your d. you

5. Whose book is this ? a. It’s me b. It’s her c. It’s him d. It’s mine

6. Choose a word which has different part of pronunciation:

a. do b. mother c. brother d. sometimes

7. What are ……..? They are my books. a. it b. this c. that d. these

8. Can you drink……..? -Yes, I can. a. orange juice b. rice c. chicken d. bread

9. I am …..a picture now. a. writing b. playing c. singing d. drawing

10. Tick the odd one out a. picture b. red c. black d. green

Bài 3: Fill in the blank

1. subject  2. doctor  3. head  4. jeans  5. course

6. sunday  7. end  8. three  9. half  10- climb

Bài 4: Matching

1-d,2-b,3-a,4-j,5-e,6-i,7-f,8-g,9-c,10-h

1-h,2-e,3-a,4-i,5-f,6-j,7-d,8-b,9-c,10-g

Bài 5:Leave me out

1. tired 2. mother 3. red 4. science 5. Vietnamese

6. ugly 7. English 8. member 9. American 10. help

Bài 6:Choose the odd one out

1. A. Monday B. Sunday C. Friday D. May

2.A.hot B. weather C. cold D. warm

3.A.when B. how C. what D. these

4.A.subject B. English C. Science D. Music

5. A. draw B. song C. write D. read

6. A. Singapore B. America C. England D. Chinese

7. A. worker B. music C. teacher D. student

8. A. banana B. milk C. apple D. orange

9. A. April B. Tuesday C. March D. August

10. A. cough B. toothache C. head D. fever

Bài 7:Complete the sentences

1. Hello, my name’s Kate. I am ten ……years….old.

2. ……How.. are you ? I’m fine, thanks.

3.There …is…. one living room and one kitchen in my house.

4………Where….. do you go after school ?
Bài 8:Arrange:

1. English / sing / songs / ?/ you / Can

-______Can you sing English songs?_____________________________

2. name / ?/ her / What / is

. -_____What is her name?____________________________________________________

3. ten / years / am / old / I

-_______I am ten years old__________________________________________________

4. my / pen friend./ new / is / This

-_______This is my new pen friend____________________________________________

5. up / get / 6.30 / I / at

_______I get up at 6.30____________________________________________________

6. is / job ? / What / your

-_______What is your job?__________________________________________________

7.Would / you / orange / juice ?/ like / some

-_Would you like some orange juice?_________________________________________

8. Ha Noi ./ I / am / from

-__I am from Ha Noi_______________________________________________________

9. animals / like ? / does / What / Nam

-______What animals does Nam like?_________________________________________

10. My/ name / Hung / is

- My name is Hung_______________________________________________

Bài9: Choose the odd one out.

1. A. England B. America C. Singaporean D. China

2. A. singer B. dance C. teacher D. doctor

3. A. swim B. ride C. job D. play.

4. A. chicken B. milk C. bread D. orange

5. A. engineer B. house C. school D. classroom.

6. A. student B. worker C. teacher D. cooker

7. A. chicken B. bread C. food D.rice

8. A. math B. learn C. science D. music

9. A. breakfast B. lunch C. dinner D. have

10. A. house B. father C. mother D. brother

Bài 10: Fill in the blanks:

1. find

2. down

3. town

4. Below

5. help

6. blue

7. wife

8. Number

9. kitchen

10.blue

11.beach

12. number

Bài 11:Choose the correct answers

1. My house is ……. a. this b. that c. big d. many
2. Who’s …….?- It’s my friend, Nam.

a. that b. his c. her d. it

3. Can I borrow ………?

a. your marker b. these marker c. the teacher d. the pink

4. May I come in ? ………

a. Thanks b. Bye c. Sure d. Yes, you are

5. He can play football…….. he can’t dance.

a. but b. and c. because d. when

Ta có hình vẽ sau: 

a)Vì các tiếp tuyến AB, AC của (O) có B,C ∈ (O) nên \(\widehat{ABO}=\widehat{OCA}=90^o\)

  Xét tứ giác OBAC có: \(\widehat{ABO}+\widehat{OCA}=90^o+90^o=180^o\)

                                      \(\widehat{ABO}\) và \(\widehat{OCA}\) đối nhau

➤ Tứ giác OBAC nội tiếp đường tròn đường kính OA

b) Vì góc nội tiếp \(\widehat{BDE}\) chắn \(\stackrel\frown{BE}\); \(\widehat{ABE}\) được tạo bởi tiếp tuyến AB và chắn \(\stackrel\frown{BE}\) nên 

\(sđ\dfrac{\stackrel\frown{BE}}{2}=sđ\widehat{ABE}=sđ\widehat{BDE}\) trong khi E ∈ AD

▲ABE và ▲ADB có: \(\widehat{ABE}=\widehat{BDA}\)(cmtrên)

                                   \(\widehat{A}\) là góc chung

⇒▲ABE ∼ ▲ADB(g-g) ⇔ \(\dfrac{AB}{AD}=\dfrac{AE}{AB}\Leftrightarrow AB^2=AD\cdot AE\)(điều phải chứng minh)

Vì ▲OAB vuông tại B nên ta có: \(AB^2+OB^2=OA^2\)(Định lý Pytago)

                                                   \(\Leftrightarrow AB^2=OA^2-OB^2=\left(3R\right)^2-R^2\) vì B∈(O) 

                                                                                         \(=9R^2-R^2\\=8R^2 \)  

Trong khi, \(AB^2=AD\cdot AE\)(cmtrên). ➤\(AD\cdot AE=8R^2\left(=AB^2\right)\) 

C. a song song với b.

mik cảm ơn ạ .