x+2/x-2 - 6/x+2 = x²/x²+4

Cho tam giác ABC vuông tại A,Ab=8cm,AC=6cm,AD là tia phân giác góc A,D thuộc BC
a,Tính DB/Dc
b,Tính BC,từ đó tính DB,DC làm tròn kết quar 2 chữ số thập phân
c,Kẻ đường cao AH(H thuộc BC).Chứng minh rằng tam giác AHB đồng dạng với tam giác CHA.Tính Diện tích tam giác AHB/Diện tích tam giác CHA
d,Tính AH

I/  Viết lại câu sao cho nghĩa không đổi

1.”I am reading a novel”, Nam said.

➔ Nam said____________________________.

2. “I always drinkmilk everyday”, Lan said.

➔ Lan said_____________________________.

3. This boy told me, “My father works in a office”.

➔ This boy told me_______________________.

4. My friends said, “We’ll go to the theater tomorrow”.

➔ My friend said_________________________.

5. Jun said, “They have drunk three cups of tea today”.

➔ Jun said______________________________.

6. “He will arrive before his brother”, Peter told her.

➔ Peter told her______________________________.

7. My teacher told us, “Don’t forget to do this homework”.

➔ My teacher told us______________________________.

II/  Viết lại câu sao cho nghĩa không đổi

1.Where is your younger brother?”, Minh asked me.

➔ Minh asked me______________________________.

2. “Say goodbye to my grandparents”, they said.

➔ They asked me______________________________.

3. “ Did Mr Bean send the letter to you?”, Mai asked him.

➔ Mai asked him______________________________.

4. “Where is the best place to eat pizza?”, Oanh asked.

➔ Oanh asked______________________________.

5. “What do you want for dinner tonight, Ly?”, he asked.

➔ He asked______________________________.

6. Jun asked me, “Did you go to work yesterday?”

➔ Jun asked me______________________________.

7. My sister asked him, “How long have you learnt English?”

➔ My sister asked him__________________________.

8. She wanted to know, “Are you a teacher?”

➔ She wanted to know___________________________.

9. My grandfather asked her, “Does you enjoy your job?”

➔ My grandfather asked her__________________________.

10 .He asked, “When did you buy it?”

➔ He asked me__________________________.

I/  Viết lại câu sao cho nghĩa không đổi

1.”I am reading a novel”, Nam said.

➔ Nam said____________________________.

2. “I always drinkmilk everyday”, Lan said.

➔ Lan said_____________________________.

3. This boy told me, “My father works in a office”.

➔ This boy told me_______________________.

4. My friends said, “We’ll go to the theater tomorrow”.

➔ My friend said_________________________.

5. Jun said, “They have drunk three cups of tea today”.

➔ Jun said______________________________.

6. “He will arrive before his brother”, Peter told her.

➔ Peter told her______________________________.

7. My teacher told us, “Don’t forget to do this homework”.

➔ My teacher told us______________________________.

II/  Viết lại câu sao cho nghĩa không đổi

1.Where is your younger brother?”, Minh asked me.

➔ Minh asked me______________________________.

2. “Say goodbye to my grandparents”, they said.

➔ They asked me______________________________.

3. “ Did Mr Bean send the letter to you?”, Mai asked him.

➔ Mai asked him______________________________.

4. “Where is the best place to eat pizza?”, Oanh asked.

➔ Oanh asked______________________________.

5. “What do you want for dinner tonight, Ly?”, he asked.

➔ He asked______________________________.

6. Jun asked me, “Did you go to work yesterday?”

➔ Jun asked me______________________________.

7. My sister asked him, “How long have you learnt English?”

➔ My sister asked him__________________________.

8. She wanted to know, “Are you a teacher?”

➔ She wanted to know___________________________.

9. My grandfather asked her, “Does you enjoy your job?”

➔ My grandfather asked her__________________________.

10 .He asked, “When did you buy it?”

➔ He asked me__________________________.

F.  READING

I. Read the following text and decide which answer best fits each numbered blank.

        I'm Linh and now I (1) _____________ at a high school in the United States. My biggest challenge in the United States is the language (2) _____________. I (3)_____________ English for five years but I still face difficulties in communication. For all the time, I feel nervous to understand what other people were saying and why they were laughing. (4)_____________I go to see an American movie, I still can't understand the actors. Maybe because spoken English has a lot of idioms

and communication (5)_____________ may happen due to cultural differences.

        Leaving home and (6) _____________ to study in a new country can be a stressful experience. However, I have learned some ways to overcome my problem. First, I usually tell people that I am learning English in case they don't understand me. Second, I listen (7)_____________. If I don't understand something for the first time, I'm not afraid (8) _____________ questions as many times as it is necessary. Watching people speak also help me to add new words to my vocabulary. Finally, my big fear is public speaking, so I decided (9) _____________down what I want to speak. This is good because I already have some words and sentences in my mind, instead of (10) _____________ during the presentation.

1. A. am studying           B. study                C. studies             D. will be studying

2. A. difficulties              B. world               C. barrier              D. communication

3. A. study                     B. studies             C. have studied     D. studied

4. A. When                     B. Which              C. Who                 D. Why

5. A. barrier                    B. breakdown       C. interaction        D. distance

6. A. travelling               B. travel               C. to travel            D. travels

7. A. careful                    B. carefully           C. careless            D. carelessly

8. A. to raise                   B. raises               C. raise                 D. raising

9. A. write                      B. to write             C. writing             D. writes

10. A. think                    B. to think            C. thinks               D. thinking

G. WRITING

I. Use the given words to write the complete sentences.

1.  Mary/ enjoy/ listen/ music/ on/ radio.

__________________________________________________________________

2. I / not/ mind/ do/ washing/ up.

__________________________________________________________________

3. She/ advised/ me/ see/ doctor/ as/ soon/ as/ possible.

__________________________________________________________________

4. At/ last/ they/ decided/ rent/ apartment.

__________________________________________________________________

5. Would/ you/ mind/ post/ this/ letter/ me?

__________________________________________________________________

6. We/ plan/ go/ Europe/ this/ summer.

__________________________________________________________________

7. The/ students/ hope/ pass/ exam.

__________________________________________________________________

8. My/ boss/ want/ me/ send/ this/ email/ before/ afternoon.

__________________________________________________________________

9. She/ always/ enjoy/ talk/ her/ grandfather/. / He/ always/ tell/ great / stories.

__________________________________________________________________

10. The/ children/ promised/ be/ back/ 9/ o'clock.

____________________________________________________________________

C. WORD FORMS

I. Give the correct form of the word in brackets to complete the following sentences.

l. Speech is the fastest method of_____________ between people. (COMMUNICATE)

2. A communication breakdown between two people from different countries may happen due to _____________ differences. (CULTURE)

3. When a policeman directs traffic, he often uses his arms to tell drivers where to go and when to stop. This is _____________ communication. (VERBAL)

4. Using telepathy is a way to communicate instantly by thoughts and feelings, without the need to use speech or _____________. (WRITE)

5. Students need the _____________ to communicate with people within their team. (ABLE)

6. Could you tell that person was angry just by looking at his or her _____________expression? (FACE)

7. This lesson will focus on _____________ communication skills. (EFFECT)

8. The technology can be used to produce _____________ educational programs. (INTERACT)

9. In free time, Nga often communicates _____________ with her cats. (NON - VERBAL)

10. Nowadays, many young people are using _____________ media such as Facebook, Twitter, Zalo. (SOCIETY)

D. VERB FORMS

I. Complete the following sentences with the correct form of the verbs in brackets.

1. Would you mind (close) _____________the window?

2. I'd really love (see) _____________ you again.

3. It was a nice day, so we decided (go) _____________ for a walk.

4. I've got a new smart phone. I haven't learnt (use) _____________it yet.

5. I hate (have)_____________ to get up early on Sunday!

6. Don't forget (post) _____________ the letter I gave you.

7. I wonder where Linda is. She promised not (be) _____________ late.

8. What do you want (do) _____________ later?

9. Minh suggested (have) _____________ a video conference this week.

10. I'm still looking for a job, but I hope (find) _____________ something soon.

E. CORRECTION

I. Find ONE mistake in each of the following sentences and correct it.

1. You aren't allowed |smoking| |because| you are |too| young to |do it.

                                        A              B                       C                      D

2. Because of| language barrier, they decided |using| body |language| |to communicate.

           A                                                                 B                    C                   D

3. The children forgot |picking| up the |note| from the office and |now| they |are| worried.

                                       A                       B                                     C              D

4.Would| you prefer |came| in the morning or the afternoon?

        A                         B    C                   D

5. I'll be here |in a moment| |if| you don't mind |to wait| for |a couple of| minutes.

                              A             B                              C                   D

6. The earthquake |happened| at |midday| when |many| people |had had|lunch     

                                   A                      B                   C                      D

7.  Water| |pollute| in the lake |has made| the |fish die.                                

        A            B                             C                      D

8.  If I |am| you, I |would| |choose| another country |to visit| in this summer holiday.     

            A                 B           C                                  D

9.  If the factory |doesn’t stop| |pollute| the lake, |no fish| |will be able| to survive.

                                  A                 B                          C             D

10. Landslide |has|never |occur| in my |region| |since| 1995.                        

                         A                 B                    C         D