Bài 1: Tính nhẩm: a) 8,42 : 0,5 b) 623,4 : 0,25 65,9 x 0,001 805,12 x 0,01 Bài 3: Tính bằng cách thuận tiện nhất: a) 9,12 x 6 + 4 x 9,14 b) 43,2 x 14 – 43,2 : 0,25 Bài 4: Quãng đường từ Nam Định đến Hà Nội dài 96km. Một người đi xe máy từ Nam Định khởi hành lúc 8 giờ 45 phút đến Hà Nội với vận tốc 40km/giờ. Hỏi người đi xe máy đó đến Hà Nội lúc mấy giờ?

CỨU TÔI :)))))) MAI THI ANH RỒI Question 7. [TH] Choose the correct option A, B, C, or D for each gap to complete the following passage. Many human activities over the last 200 years have been responsible (5) ________ polluting the air and damaging people’s health. Automobile engines and power plants burn combustible (dễ cháy) (6) ________ like gasoline and coal and allow toxic gases and smoke to escape into the air. Some pollutants destroy the ozone layer, which is the thin blanket of gases that (7) ________ Earth from the Sun’s dangerous ultraviolet rays. Other pollutants contribute to (8) ________ warming by adding to the planet’s natural greenhouse effect. A. covers B. protects C. stops D. damages Question 8. [TH] Choose the correct option A, B, C, or D for each gap to complete the following passage. Many human activities over the last 200 years have been responsible (5) ________ polluting the air and damaging people’s health. Automobile engines and power plants burn combustible (dễ cháy) (6) ________ like gasoline and coal and allow toxic gases and smoke to escape into the air. Some pollutants destroy the ozone layer, which is the thin blanket of gases that (7) ________ Earth from the Sun’s dangerous ultraviolet rays. Other pollutants contribute to (8) ________ warming by adding to the planet’s natural greenhouse effect. A. environmental B. thermal C. temperature D. global Question 9. [TH] Read the text and choose the correct answer A, B, C, or D for each of the questions. ALASKA Alaska is called the Land of the Midnight Sun because in summer, the sun does not set for nearly three months. But in winter the sun stays almost unseen. All Alaskans take special pride in their beautiful and unique state. Alaska is perhaps the most amazing state in the USA. It has coastlines facing both the Arctic Ocean and the Pacific Ocean. This state has an incredible three million lakes. That’s four lakes per person living there. Many cities in Alaska cannot be reached by road, sea, or river. The only way to get in and out is by air, on foot, or by dogsled. That’s why Alaska has the busiest sea airport in the world, Lake Hood Seaplane Base. Nearly two hundred floatplanes take off and land on the water of this airport every day. It’s really a fun scene to watch. Alaska ______________. A. is another name for the USA B. is an island in the Pacific Ocean C. has coastlines facing both the Pacific and the Arctic Oceans Question 10. [TH] Read the text and choose the correct answer A, B, C, or D for each of the questions. ALASKA Alaska is called the Land of the Midnight Sun because in summer, the sun does not set for nearly three months. But in winter the sun stays almost unseen. All Alaskans take special pride in their beautiful and unique state. Alaska is perhaps the most amazing state in the USA. It has coastlines facing both the Arctic Ocean and the Pacific Ocean. This state has an incredible three million lakes. That’s four lakes per person living there. Many cities in Alaska cannot be reached by road, sea, or river. The only way to get in and out is by air, on foot, or by dogsled. That’s why Alaska has the busiest sea airport in the world, Lake Hood Seaplane Base. Nearly two hundred floatplanes take off and land on the water of this airport every day. It’s really a fun scene to watch. Which statement below is NOT correct? A. In Alaska, the number of lakes is bigger than that of people. B. There is one lake for each person living there. C. Alaska has an incredibly high number of lakes.

tính DE ntnao ạ giúp mình nhanh với ạ mình cảm ơn

Vẽ anime girl y/c: digi not tradi, full màu, line (tùy), tỉa cái tóc cko đẹp vào nha:) xấu = bc NL: Học giỏi tới nỗi ông này ngất:)))

18 Circle the correct answer to complete the following sentences They a cooking class every week. A: have B: having C: are D: has 19 Circle the correct answer to complete the following sentences They camping for five days next summer. A: are going B: goes C: make D: go 20 Circle the correct answer to complete the following sentences My father to the zoo tomorrow A.go B.will go C.goes D. went 21 As it doesn’t snow in Viet Nam, we can not skiing. A: play B:go C:do D: take 22 Circle the correct answer to complete the following sentences If we cut down more forests, there. more floods A.is B.are C.were D.will be 23 Circle the correct answer to complete the following sentence Now robots can do the housework and in the future, they ........... talk to people. A.can B.can't C.could D.will be able to 24 Circle the correct answer to complete the following sentences Minh his face in the morning A: wash B: washing C: washes D: to wash 25 Circle the correct answer to complete the following sentences There are many flowers Ha Noi. A: in B: at C: with D: on 26 People need to breathe. If they don;t breathe, they(1). die.But how clean is the air people breathe? If they breathe dirty air, they will have breathing problems and (2). ill. Plants and animals need clean air, too . ........................ of things in our lives create harmfull gases and make the air dirty, like cars, motorbikes and factories. Dirty air called. air .Air pollution can also make our Earth warmer. The problem of air poluttion started with burning a lot of coal in homes and factories. 2. A. became B. Become C. Becomes D. will become 27 People need to breathe. If they don;t breathe, they(1). die.But how clean is the air people breathe? If they breathe dirty air, they will have breathing problems and (2). ill. Plants and animals need clean air, too .(3) ........................ of things in our lives create harmfull gases and make the air dirty, like cars, motorbikes and factories. Dirty air called. air .Air pollution can also make our Earth warmer. The problem of air poluttion started with burning a lot of coal in homes and factories. 3. A. Some B. Many C. A lot D. Few 28 People need to breathe. If they don;t breathe, they(1). die.But how clean is the air people breathe? If they breathe dirty air, they will have breathing problems and (2). ill. Plants and animals need clean air, too .(3) ........................ of things in our lives create harmfull gases and make the air dirty, like cars, motorbikes and factories. Dirty air called.(4) air .Air pollution can also make our Earth warmer. The problem of air poluttion started with burning a lot of coal in homes and factories. 4. A. pollute B. Polluted C. Pollution D. polluting 29 Choose the sentence that has the same meaning as the first. We will probably go home by next Sunday A. We shouldn't go home by next Sunday B. We might go home by next Sunday C. We have to go home by next Sunday D. We must go home by next Sunday 30 Complete the sentences The students /playing/right/ now/ A: The students are playing right now. B: The students playing right now. C: The students play right now. D: The students plays right now. 31 Choose the correct question for the underline words There are two new students in the class . A: How many new students is there in the class ? B: How many new students are there on the class ? C: How much new students are there in the class ? D: How many new students are there in the class ? 32 Choose the correct question for the underline words My favourite subject at school is Math. A: What are your favourite subject at school ? B: Which is your favourite subject at school ? C: What is your favourite subject at school ? D: What is your favourite subjects at school ? 33 Find one mistake in each of the following sentences The air in the country is more clean than the air in the city. A B C D 34 Circle the correct answer to complete the following setence They didn't go on a picnic ..................... A. because the weather was bad B. so the weather was bad C. although the weather was bad D. because the bad weather 35 Circle the word whose underlined part is pronounced differently from others A.show B.doctor C.gold D.postcard 36 24 Kien is not very . He never plays games. A: sport B: sporting C: sporty D: sportily 37 Thanh likes weather because he can go swimming. A: hot B: cold C: rainy D: rain Mark the letter A,B, C or D on your answer sheet to indicate the word that differs from the other three in the position of primary stress in each of the following questions A: teacher B: farmer C: worker D: escape.

KHÔNG GHI LẠI CÂU HỎI và trả lời (giải thích càng tốt, không có cũng không sao) V. Supply the correct verb form: 1) What ……………you …………………..(do) last weekend? 2) I ……………………( go ) to the theater with my family last weekend. 3) They ( not come) ………………..to Maryam’s farewell party last night. 4) I wish I ……………………………..( be ) there with you. 5) Lan thinks she……………………….. ( speak ) English well. 6) They want him……………….. ( help) them. 7) They…………………………… ( be) pen pals for a long time. 8) Would you like (come)…………………..to my house next week. 9) We used to…………( write) to each other every month when we…( be) at secondary school. 10. Tomorrow, I ( study)……………………….unit 2. VI. Make sentences from the words/ phrases given. 1. We/ keep/ our bodies/ warm/ avoid/ flu/ cath/ a cold.  ……………………………………………………………. 2. You/ should/ not/ play/ computer games/ free time.  ……………………………………………………………. 3. Vitamins/ play/ important/ role/ our diet.  ……………………………………………………………. 4. Getting/ enough/ rest/ help/ you/ concentrate/ school.  ……………………………………………………………. 5. Doctor/ asking/ Huy/ questions/ about/ health problems.  ……………………………………………………………. VII. Put the verbs in brackets into the correct form (gerund , infinitive). 1. She expects (get) ………….…………. a pay rise next month. 2. His mother wants him (get) ………..…………… a good result in this semester. 3. I will refuse (work) ……………….….on Saturday and Sunday if I can’t get the double pay. 4. We promise (help) …………………..…….. him when he is in trouble. 5. Their friends hope (see) ………….……………… them again 6. The boss decided (go) ……………….…………….. abroad. 7. Miss Linda enjoys (work) …………..……………… with young children. 8. I start (work) ………………………. at 7:00 am every day. 9. I’m looking forward to (talk)……………….………to you soon. 10. Would you mind (open) ……………………………… the window? VIII. Combine the sentences using an appropriate coordination conjunction given. so but and or however 1. To stay healthy you eat more vegetable. You eat less high – fat food. - ……………………………………………………………………………………………… 2. To prevent flu, we eat a lot of garlic. We keep our bodies especially feet warm. - ……………………………………………………………………………………………… 3. It began to rain. I opened my umbrella. –………………………………………………………………………………………………… 4. It began to rain. He didn’t open his umbrella. – …………………………………………………………………………………………… 5. He worked hard. He could earn much money. – …………………………………………………………………………………………… 6. Study hard. You will fail the exam. - ……………………………………………………………………………………………… 7. Dan didn’t study for the exam. Lan did. - ……………………………………………………………………………………………… 8. I understand your point of view. I don’t agree with it. - ……………………………………………………………………………………………… 9. He lied to her. She still likes and trusts him. - ……………………………………………………………………………………………… 10. It began to get dark. I turned on the light. - …………………………………………………………………………………………………

1, tìm hai số tự nhiên sao cho khi lấy tổng, hiệu (số lớn trừ số nhỏ) tích thương (số lớn chia số nhỏ) của hai số đó cộng lại ta được kết quả là 245 giải bài toán bằng cách lập phương trình

Question 1. [NB] Choose the word whose underlined part is pronounced differently from the others. A. development B. relate C. mention D. technology Question 2. [NB] Choose the word whose underlined part is pronounced differently from the others. A. climate B. sighting C. might D. aliens Question 3. [NB] Find the word which does not belong to the group. A. atmosphere B. powerful C. condition D. astronaut Question 4. [NB] Find the word which does not belong to the group. A. untreated B. aquatic C. pollution D. electronic Question 5. [TH] Choose the correct option A, B, C, or D for each gap to complete the following passage. Many human activities over the last 200 years have been responsible (5) ________ polluting the air and damaging people’s health. Automobile engines and power plants burn combustible (6) ________ like gasoline and coal and allow toxic gases and smoke to escape into the air. Some pollutants destroy the ozone layer, which is the thin blanket of gases that (7) ________ Earth from the Sun’s dangerous ultraviolet rays. Other pollutants contribute to (8) ________ warming by adding to the planet’s natural greenhouse effect. A. for B. of C. to D. with Question 6. [TH] Choose the correct option A, B, C, or D for each gap to complete the following passage. Many human activities over the last 200 years have been responsible (5) ________ polluting the air and damaging people’s health. Automobile engines and power plants burn combustible (dễ cháy) (6) ________ like gasoline and coal and allow toxic gases and smoke to escape into the air. Some pollutants destroy the ozone layer, which is the thin blanket of gases that (7) ________ Earth from the Sun’s dangerous ultraviolet rays. Other pollutants contribute to (8) ________ warming by adding to the planet’s natural greenhouse effect. A. chemicals B. means C. fuels D. matters

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Hai thành phần mang điện trong nguyên tử là?