xecise 1: complete thhe second sentenve so that it follows on from the frist. Use the present perfect

1/ The door is open. Someone _____ the door

2/ This is Oliver's drawing. Look! Oliver ____ a picture

3/ The calculator is broken. Someone ______ the calculator

4/ United are the winners. United _____ the game

5/ There's no more winne in the bottle. We ______ all the wine

6/ The floor is clean now. I ______ the floor

7/ I know my number now. I ______ number by heart.

8/ The guests are here now. Theguests _________

9/ John is still working on the computer. I _________ with the computer yet

exercise 2:

1/ autumn/ what's/ Hai Phong/ liek/ in?

-> ______________________________________

2/ usually/ dry/ it's/ cool / and

->_______________________________________

3/ will/ what/ like/ weather/ be/ the/ tomorrow

-> _______________________________________

4/ be/ cool/ will/ and/ windy/ it

-> _______________________________________

5/ Where/ go/ did/ weekend/ you/ last?

-> _______________________________________

6/ Phu Quoc/ I/ to/ Island/ went.

-> _______________________________________

7/ do/ of/ think/ it/ you/ what?

-> _______________________________________

8/ expected/ beautiful/ than/ It's/ more/ I

-> _______________________________________

9/ Phu Quoc/ go/ next/ to/ I'll/ Island/ year

-> _______________________________________

10/ I/ Ha Nam/ village/ in/ a/ in/ live/ small.

-> ________________________________________

11/ in/ peaceful/ hometown/ quiet/ and/ my/ life/ is

-> _______________________________________

12/ friendly/ are/ villagers/ the/ kind/ and

-> _______________________________________

13/ noisy/ Ha Noi/ is/ busy/ and

-> _______________________________________

14/ than/ Ha Noi/ more/ Ha Nam/ crowded/ is

-> _______________________________________

1) I often talked to her when I studied in the university

-> I used .........................................................................

2) There was a big field near my house.

-> there used ......................................................................

3) Paul and Mary no longer meet each other on saturdays.

-> Paul and Mary used .......................................................

4) Bill and Sue often met each other on Mondays.

-> Bill and Sue used ............................................................

5) There isn't an old theatre in front of my house any longer.

-> There ..................................................................................

6) She is careful in washing dishes now.

-> She didn't use .....................................................................

7) She was my best friend but we aren't friends any longer.

-> She used ..............................................................................

8) He learns mathematics very well now.

-> He didn't use .......................................................................

9) He stopped for gas at this filling station when he lived in that city

-> He used ..................................................................................

10) Mrs. Smith doesn't go to Dalat any more.

-> Mrs. Smith used ......................................................................

11) She no longer helps me.

-> She used .....................................................................................

12) There isn't a big statue behind my school any more.

-> There ...........................................................................................

13) There were some shops at this place

-> There .............................................................................................

14) You get bad marks for your english test now

-> You didn't use .................................................................................

15) I lived in Finland, but now I live in Thailand.

-> I used ...............................................................................................

16) The water in this lake was very fresh.

-> The water in htis lake used ...............................................................

17) There was no law that restricted hunting and fishing in the past

-> There used .........................................................................................

18) Geogre was more energetic than he is now

-> George used ........................................................................................

19) There isn'ta yellow gate at my school any more.

-> There used ..........................................................................................

20) Dennis gave up smoking two years ago

-> Dennis used ........................................................................................

21) When Babara was in Italy, she stayed with an Italian family

-> Babra used ..........................................................................................

22) I went to the church when I was a child

-> I used ....................................................................................................

23) Mr. Micheal grew tulips but he doesn't any more

-> Mr Micheal used ....................................................................................

I) trắc nghiệm

câu 1 mệnh đề nào sau đây là mệnh đề sai?

A. \(\forall n\in N:n\le2n\) B. \(\exists n\in N:N^2=n\) C. \(\forall x\in R:x^2>0\) D. \(\exists x\in R:X>X^2\)

câu 2: cho nữa khoảng A=[0;3) và B=(b;b+4]. \(A\subset B\) nếu:

A. -1<b\(\le\)0 B. -1\(\le\)b<0 C. -1\(\le\)b\(\le\)0 D. đáp án khác

II)tự luận

câu 1

a) cho mệnh đề:" nếu một số tự nhiên chia hết cho 6 thì nó chia hết cho 3". phát biểu mệnh đề dưới dạng "điều kiện cần"

b) cho mệnh đề P:"\(\exists x\in Q:2x^2-5x+2=0\).Xét tính đúng sai của mệnh đề P và nêu mệnh đề phủ định của mệnh đề P

câu 2 cho hai tập hợp sau> Hãy liên kế các phần tử trong tập A và B

\(A=\left\{x\in N:\left|x\right|< 4\right\}\)

\(B=\left\{x\in Q:\left(4x^2-x\right)\left(x^2+3x-4\right)=0\right\}\)

câu 3 cho hai tập hợp \(A=\left\{x\in N:\left(x^2+2x\right)\left(x^2+x-2\right)\right\}=0\)và tập hợp \(B=\left\{-1;0;1\right\}\). Tìm các tập hợp \(A\cup B;A\cap B;\) A\B;B\A

câu 4 cho hai tập hợp \(A=\left\{x\in R/-2< x< 3\right\}\)và \(B=(-\infty;2]\). Tìm tập hợp \(A\cup B;A\cap B;\)A\B;B\A và biểu diễn trên trục số

1) viết kí hiệu nguyên tử ( theo đúng tên nguyên tố) của nguyên tử sau

a) nguyên tử A có 34 hạt mang điện và 18 hạt không mang điện

b) nguyên tử X có tổng số các hạt cơ bản là 40 và có số khối là 27

c) nguyên tử Y có tổng số các hạt cơ bản là 155, trong đó số hạt mang điện nhiều hơn số hạt không mang điện là 33

d) nguyên tử R có tổng số các hạt cơ bản là 34

2) trong hợp AB₃, tổng số hạt cơ bản trong phân tử là 196, trong đó số hạt mag điện nhiều hơn số hạt không mang điện là 60. Số khối của B nhiều hơn A là 8 và số hạt cơ bản của A ít hơn trong B là 13. Xác định công thức phân tử của AB₃

3) khi cho 10,12g natri kim loại tác dụng hoàn toàn với một phi kim B thì thu được 45,32g muối natri

a) tìm khối lượng nguyên tử trung bình của B và tên của B

b) biết B có 2 đồng vị ^A1 B và ^A2 B trong đó ^A1 B chiếm 50% về số nguyên tử và số khối A₁ lớn hơn số khối A₂ là 2 đơn vị. Tìm các số khối A₁, A₂

Cm

1) \(\overrightarrow{PQ}+\overrightarrow{NP}+\overrightarrow{MN}=\overrightarrow{MQ}\)

2)\(\overrightarrow{NP}+\overrightarrow{MN}=\overrightarrow{QP}+\overrightarrow{MQ}\)

3)\(\overrightarrow{MN}+\overrightarrow{PQ}=\overrightarrow{MQ}+\overrightarrow{PN}\)

4)\(\overrightarrow{MN}+\overrightarrow{PQ}+\overrightarrow{QM}+\overrightarrow{NP}=\overrightarrow{O}\)

5)\(\overrightarrow{AB}-\overrightarrow{CD}=\overrightarrow{AC}+\overrightarrow{DB}\)

6)\(\overrightarrow{AD}+\overrightarrow{BE}+\overrightarrow{CF}=\overrightarrow{AE}+\overrightarrow{BF}\)

7)\(\overrightarrow{AD}-\overrightarrow{FC}-\overrightarrow{EB}=\overrightarrow{CD}-\overrightarrow{EA}-\overrightarrow{FB}\)

8)\(\overrightarrow{AB}-\overrightarrow{DC}-\overrightarrow{FE}=\overrightarrow{CF}-\overrightarrow{DA}+\overrightarrow{EC}\)

Khối lượng nguyên tử trung bình của Clo là 35,5. Clo trong tự nhiên có 2 đồng vị là 35 và 37. Hỏi \(\frac{37}{17}\)Cl chiếm bao nhiêu % về khối lượng trong phân tử axit pecloric HClO₄

A={x∈Z/-2≤x≤5}

B={x∈Z/\(\frac{3}{2}\) </x/≤5}

c={x∈Z/ }

≤x≤5}

B={x∈Z/\(\frac{3}{2}\) </x/≤5}

c={x∈Z/\(x^2-3x+2=0\) }

Tổng số hạt cơ bản là 49, số hạt không điện bằng 53,125% số hạt mang điện

I

1. she got through her work with speed and _____.

A. innovations B. energy C. light D. effiecy

2. thi is the engineer ______ contribution to the whole project is very importan

A. who B. whom C. to whom D. whose

3. As young students, you _____ smoke or drink.

A. needn’t B. might not C. mustn’t D. oughtn’t

4. Thanks _____ recent research, effective treaments are available

A. for B. about C. in D. to

4. what is your response _____ this comment?

A. about B. with C. to D. for

5. “This job is time-consuming, I think.” – “_______!

A. absolutely B. thank you C. any time D. another time, perhaps

6. would you please keep an eye on this bike ? -_______

A certain B. not at all C. yes, I would like it D. yes, the bike pleases my eyes

7. Peter: “I think you should go to Seattle school of english in USA.” Susan: “_______”

A. yes, I do B. I agree with you C. No, problem D no, I didn’t

8. nowadays we can get a lot of ____ from internet

A. reputation B. stages C. benefits D. scenery

9. the brighton language center has excellent ________

A. reputation B. name C. deposit D. linguistics

10. every year, natural __________ cause millions of dollars worth of damage

A. temperatures B. accidents C. disasters D. events

11. she failed her driving test for the first time. ____, she took it again

A. therefore B. However C. because d. although

12 “I suggest going by bus.”-__________

A. that’s a reason B. yes, please C. that’s a trip D. that’s a good idea

13. she always thinks of other people's feeling and wishes. She is a ____ woman

A. considerate B. desirable C. active D. slavish

14. the government is trying to ____ people to use public buses instead of motorbikes

A. complain B. provide C. reduce D. persuade

II

a)

Auld Lang Syne is Scottish poem written by Robert Burns in 1788 and set to the turn of traditioneal folk songs. The title of the Scottish tune is translated into “ times gone by” ad is about remembering friends from the past and not letting them be forgotten. It is well-know in many countries, especially in the english-speaking countries. Auld Lang Syne is traditionally sung at the conclusion of New Year gatherings in Scotland and around the world. It is common practice that everyone joins hands with the person next to him form a great circle around the dance floor. Auld Lang Syne is stranslated into many languages, and the song is widely sung all over the world.

1. Auld Lang Syne is an English poem written in 1788. ___true/false___

2. The song is well-know in many countries, especially in Asia. ____true/false__

3. “Auld Lang Syne” means “ times gone by”. ____true/false___

4. The song is traditionally sung at the conclusion of New Year gatherings in Scotland and around the world . ___true/false___

5. what is the best title for passage?

A. the history of a song B. the biology of a musican C. the history of a celebration D. the history of a country

6. Which one is not true?

A. the song is well-known in the english-speaking countries.

B. the song is about remembring friends from the past and not letting them be forgetten

C. the song hasn’t widely been sung for a long time.

D. the song is tradionally sung in Scotland and around the world

b)

Every December, I begin to feel uncomfortable. Why? Christmas is coming. Most people enjoy this holiday, but it makes me depressed. First, I’m not a religious person. This holiday celebrates the birth of Christ, and it’s full of religious symbols. Second, Christmas is becoming more and more commercial. It’s the most important time of year for owners of stores, for example. Spending lots of money seems to be people’s main activity in December. Everywhere you hear the commands “ Buy! Spend! Give!”. It’s awful. Last, I think Christmas is a difficult time of year for people without families. I’ ve been living away from my family for several years, and I miss being with them - especially at Christmas.

1. Christmas makes the writer depressed. ___true/false___

2. Christmas is full of religious symbols. ___true/false___

3. People spend lots of money buying Christmas presents. ___true/false___

4. Only shop owners enjoy Christmas. ___true/false___

5. Christmas is a good time for people living away from the family. ___true/false___

6. The main idea of the passage is ______

A. he reason why the writer likes christmas B. what people do during christmas

C. what people buy at christmas. D. the reason why the writer feels unhappy at christmas

7. when is christmas celebrated every year?

A. january B. November C. December D. August

III

Do you celebrate Earth Day? It is a holy day ____ (1) has no borders. It crosses land, mountain, oceans, and time, and brings people ____(2) over the world together. People around the world celebrate Earth Day each year ___(3) April twenty second. It is a day for people to think about issues of the environment

People do many different things to celebrate Earth Day. Some groups ___(4) up waste in their community. Some people go to talks or films to learn about the environment. They also discuss changes people can make to help the environment.

Taking care of the Earth something people can think about every day. ___(5) problems are still very serious now. Celebrating Earth Day is only the first step. By working together, we can all make a ___(6)

1. A. which B. who C. whose D. when

2. A. on B. all C. old D. almost

3. A. on B. for C. in D. of

4. A. do B. make C. clean D. put

5. A. environmental B. environments C. environmet D. environmentally

6. A. changes B. immprovement C. different D. difference

IV

1. After the injury, he never played ___ again (profession)

2. Nha Trang always attracts more and more _________. (sightseeing)

3. do you want me to attend that course to ________ my english, Mom (improvement)

4. he has never shown much consideration to his son's needs.(considerate)

5. can you tell me who _________ this kind of machine. (invention)

6. ___________ disaster are experienced to disapper in a few years (nature)

7. ________ are interested in the protection of the environment (conserve)

8. to reduce the bill every month, we must use water _________ (economy)

V

1. because the water is polluted, people in the village get a strange disease

-> Because of ______________________________________________

2. Mr Nam will have a good mechanic repair his car tomorrow

-> Mr Nam will have his _____________________________________

3. she wants to lose weight she should do a lot of exercises

-> if she ___________________________________________________

4.when did they start to design these new styles of jeans

-> How long ________________________________________________?

5. what about reducing the amount of water we use everyday

-> I suggest the amount _______________________________________

6. the last time they wrote to me was two months ago

-> they haven’t ______________________________________________

7. “i can't do my homework tonight", Daisy told Mrs Green

-> Daisy told Mrs Green ______________________________________