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

1. A. coordinate B. triathlon C. allergy D. calorie

2. A. leaf B. life C. knife D. of

3. A. monopoly B. melody C. compound D. concentrate

4. A. paragraph B. cough C. although D. enough

5. A. vegetarian B. depression C. essential D. attention

Bài 5: Cho tam giác ABC có góc A = 50 . Vẽ đoạn thẳng AI vuông góc và bằng AB (I và C khác phía đối với AB). Vẽ đoạn thẳng AK vuông góc và bằng AC (K và B khác phía đối với AC).

Chứng minh rằng: a) IC = BK; b) IC vuông góc BK 

Cho hai đoạn thẳng AB và CD cắt nhau tại trung điểm O của mỗi đoạn thẳng.

a) Chứng minh: AC = DB và AC // DB

b) Chứng minh: AD = CB và AD // CB

Chọn đáp án đúng.

1.   I love going to the beach but I_______of sunburnam

A. am afraid                B. am not afraid               

2. My brother doesn't want to suffer from toothache, so he his teeth twice y

     A. brushes                              B. doesn't brush

3. My friend wishes to become a doctor one day, so_______.

     A. he studies very hard B. he wants to work in his hometown's hospital

4. My friend wishes to become a doctor one day, _______he wants to work in his hometowns

hospital.

     A. and                          B.so

5. My father is angry with me, so_______.

     A. he doesn't say a word to me                   B. he still takes me to the park

6. I will go shopping with my mom tomorrow but     .

     A. I will buy some new clothes                   B. I won't buy anything

7. Louis is my closest friend and _______.

     A. he is my co-worker                      B. I don't want to talk to him now

8. _______or you will be frozen.

     A. Wear thick clothes                       B. The weather is cold outside

9. Tim is in hospital, so_______          .

     A. the doctor is taking his temperature                 B. he can't go to school today

10. Tim is in hospital_______the doctor is taking his temperature.

     A. and                                               B.but

11. My father is having a sore throat, so_______.

     A. he needs to avoid cold drinks      B. he has high temperature.

12. It is chilly outside but_______.

     A. we can go out and build a snowman      B. we should stay in and keep warm

13. They need to repair the rooftop or_______.

     A. raindrops will leak in        B. their house will look better

14. I never want anyone to wait for me, so_______.

     A. I try not to be late                        B. I keep being late

15. Last week he got a severe car accident but now

     A. he is still weak.                            B. he recovers quickly

Nối hai câu dưới đây, dùng liên từ"and/ but/ or/ so" để tạo thành một câu ghép

1.    It takes a lot of time to cure this disease. You need to be extremely patient

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2.    Anne is a gorgeous girl. She has a pleasant personality.

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3.    It is raining hard. We postpone our boat trip.

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4.    He dreams of being the best student. He never studies hard.

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5.    My bicycle is broken. I have to take the bus to school.

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6.    He is a brilliant doctor. He is a loving father.

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7.    I need to tidy my room. My mom will be angry with me.

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8.    My house is quite old. Living in it is comfortable.

Điển liên từ"and/but/or/so" vào chỗ trống để tạo thành câu ghép.

1.       I am very thirsty_______I don't have any money to buy drinks.

2.       It's late_______I'm still wide awake.

3.       We live in a small house_______we like it very much.

4.       My friend looks wea_______k         he's really strong.

5.       The entrance test is very difficult_______I hope I will pass it.

6.       You go home now_______    your mother will punish you for staying out too late.

7.       Fruits taste good_______       they are healthy for your body.

8.       I like small dogs_______       I hate big ones.

9.       My brother is having the flu_______         I think he won't be absent from school today.

10.       Our project is successful        _______all of us are happy about it.

11.       He performs very well,_______he deserves the reward.

12.       Take care of yourself_______          you will go down with disease.

13.       My mother usually gets home at 5pm_______then she prepares dinner.

14.       Stop eating raw food_______          you will have stomachache.

15.       Janet thinks Chemistry is a difficult subject_______     she is interested in it.

16.       The phone doesn't work well,_______Ana sells it and buys new one.

17.       There is a need for a new fridge in Tom's kitchen_______       he lacks money now.

18.       He is very good-looking_______     he seems to lack personality.

19.       Will you speak to him_______        I speak?

20.       I have an allergy to seafood,_______         I can't taste it.

21.       This exercise is challenging_______it is helpful.

22.       I am going to the beach,_______I buy some sunscreen.

23.       My little brother dreams of becoming a pilot_______he wants to travel around the world.

24.       The singer is suffering from sore throat, _______ he won’t perform tomorrow.

25.       Tomorrow is my sister's birthday,_______ I am making a cake for her.

Khoanh tròn vào đáp án đúng.

1.       My sister is a nurse (and/ but) she works in a dental clinic.

2.       My teeth hurt, (so/ or) I make an appointment with the dentist.

3.       The couple want to go to the musical, (but/ so) there aren't any tickets left.

4.       Stop listening to rock music through earphones (or/ and) you will have earache.

5.       Eating too much sugar is bad for your teeth, (so/ and) it causes obesity.

6.       The laptop suddenly stops working, (but/ so) I cannot finish my work on time.

7.       There are many people passing by (and/ but) only few people drop in the restaurant.

8.       The doctor advises people to drink enough water, (and/ so) do exercises regularly.

9.       My neighborhood is peaceful, (but/ so) sometimes there are several cases of petty crime.

10.       My boyfriend asked me out (and/ but) I was sick.

11.       There are many wonderful things in Thailand, (so/ but) I decide to stay here for another couple of days.

12.       I want to eat sushi, (so/ but) I am going to a Japanese restaurant tonight.

13.       I will go to the park tomorrow, (and/ so) Jim will take me there.

14.       My friend is studying abroad (but/ or) we still keep in touch with each other.

15.       My father is under a lot of pressure from work, (so/ but) I am trying to make him laugh.

Cho hai đoạn thẳng AB và CD cắt nhau tại trung điểm O của mỗi đoạn thẳng

a) Chứng minh: AC = DB và AC // DB.

b) Chứng minh: AD = CB và AD //CB

c) Chứng minh: góc ACB = góc BDA

d) Vẽ CH vuông góc AB tại H. Trên tia đối của tia OH lấy điểm I sao cho OI = OH. Chứng minh: DI vuông góc AB

Tìm x biết:

a) \(2.\left|3x-1\right|-\dfrac{3}{4}=\dfrac{1}{20}\)

b) \(\left|x+5\right|+\left|x-3\right|=9\)