Em hãy viết một đoạn văn (khoảng 200 chữ) về việc cần phải tham gia các hoạt động tập thể và hoạt động xã hội.

Solar energy is a long lasting source of energy which can be used almost anywhere. To generate solar energy, we only need solar cells and the sun! Solar cells can easily be installed on house roofs, so no new space is needed and each user can quietly generate their own energy. Compared to other renewable sources, they also possess many advantages. Wind and water power rely on turbines which are noisy, expensive and easy to break down. Solar cells are totally silent and non-polluting. As they have no moving parts, they require little maintenance and have a long lifetime. However, solar energy also has some disadvantages. We can only generate solar energy during daytime because the system depends on sunlight. Besides, solar cells require large area to work effectively. The main disadvantage of solar energy is that it costs about twice as much as traditional sources such as coal, oil, and gas. This is because solar cells are expensive. Scientists are hoping that the costs of solar cells will reduce as more and more people see the advantages of this environmentally friendly source of energy. Question 28. What does the passage primarily discuss? A. Advantages and disadvantages of solar energy. B. Solar energy’s advantages over other sources of energy. C. The cost of solar energy. D. Solar energy as an alternative for fossil fuels. Question 29. What does the word they in line 4 refer to? A. solar energy users. B. other renewable resources. C. advantages. D. solar cells. Question 30. What is NOT mentioned as an advantage of solar cells? A. They require little maintenance. B. They are non-polluting. C. They cost little to produce. D. They operate quietly. Question 31. Which of the following is NOT a traditional source of energy? A. solar energy B. oil C. coal D. gas Question 32. Which of the following is the main disadvantage of solar energy mentioned in the passage? A. It is expensive. B. Solar cells require large areas to operate. C. It is unfriendly to the environment. D. It depends on sunlight. VOTE 5 SAO + CẢM ƠN NHƯNG CÓ DẪN CHỨNG Ạ

I. Khoanh tròn vào từ không cùng loại 1. A. tooth B. eye C. head D. aspirin 2. A. photo B. bought C. flew D. sang 3. A. beautiful B. souvenir C. interesting D. colourful 4. A. summer B. spring C. me D. country 5. A. how B. what C. that D. who II. Chọn đáp án đúng A, B, C hoặc D cho những câu sau 1. What are you going.......... tomorrow? A. to do B. do C. did D. doing 2. Linda..... going to visit her friends next weekend. A. was B. is C. is D. B&C 3. They...... swimming last Saturday. A. go B. going C. went D. goes 4. Are they going to the party tomorrow? - Yes, they............. A. are B. do C. did D. can 5. He should go to the........... because he has a toothache. A. dentist B. nurse C. teacher D. doctor 6. My friends and I............ going to the zoo next Saturday. A. is B. was C. are D. were 7. Are you going to do your homework? - Yes,............ A. I am B. I was C. he is D. he was 8. What's the matter............. you? -I have a cold. A. to B. with C. from D. in 9. How many seasons are............ in England? A. these B. those C. they D. there 10. It's often............... in the rainy season. A. cold B. warm C. rainy D. sunny III. Đọc hiểu sau đó chọn đáp án đúng bên dưới cho phù hợp Yesterday.......... (1) a terribly cold day but Jim...... (2) out without warm clothes, so he...... (3) a bad fever. His mother took him to the doctor. The doctor gave him............... (4) aspirins and said " You should....... (5) warm clothes and you shouldn't go out. I think you will get better soon. " 1. A. was B. were C. is D. are 2. A. go B. going C. went D. goes 3. A. has B. have C. had D. having 4. A. an B. a C. any D. some 5. A. wear B. wore C. wearing D. to wear IV. Sử dụng những từ cho sẵn và điền vào đoạn hội thoại sau. Matter, tired, fever, take, out 1. Son: I'm very..... (1)... 2. Dad: What' the... (2).... with you, son? 3. Son: I have a... (3).... 4. Dad: you should.... (4).... some aspirins and you shouldn't go.... (5).... V. Dùng nhũng từ cho sẵn viết thành câu hoàn chỉnh 1. going/ We/ to/ are/ Do Son/ next weekend/ visit. ..................................................................................... 2. you/ going/ Are/ T.V/ watch/ to/ this evening? ..................................................................................... 3. visit/ going/ She/ is/ her/ tomorrow/ friends/ to. ..................................................................................... 4. going/ We/ to/ are/ Do Son/ next weekend/ visit. ..................................................................................... Last Sunday, Lan didn't go to school, but she went to her friend's birthday party. She got up early in the morning, went to the shop, and bought some gifts and flowers. Then, she went to her friend's house. At the party, she ate a lot of cakes and drank soft drink. She danced beautifully, sang many songs, and told a lot of interesting stories. All her friends were there too. They played many games such as hide and seek, skipping rope and cards. They were very happy and enjoyed themselves a lot. Finally, the party came to an end. They said goodbye to each other and went home late in the the evening. 1. Did Lan go to school yesterday? ..................................................................................... 2. Where did she go to? ..................................................................................... 3. What did she buy for her friend? ..................................................................................... 4. What did she do at the party? ..................................................................................... 5. Did they enjoy themselves a lot? ..................................................................................... 6. When did they go home? .....................................................................................

để khôi phục thao tác hủy bỏ em thực hiện

giúp mk nha thks trước 7h 40' pk xog

Quan sát biến dạng của rể thân lá VD: củ sắn là gì?

Cho tam giác ABC vuông tại A có góc B=60 độ đường cao AH trên tia đối của HB lấy điểm M sao cho HM=HB CMR HB<HC tam giác AHB=AHM từ đó suy ra tam giác ABM đều gọi N là trung điểm của AC và O là giao điểm của AM và BN giả sử AB=4 tính độ dài AO CẦN LÀM Ý CUỐI NHA

khi khởi động chương trình Word em có thể

VI. Rewrite the following sentences, beginning with the word(s) given 1. Those who haven’t been abroad before shouldn’t criticize foreign customs. → Nobody….. 2. I’ve never been to Scotland before. → This….. 3. Hurry up if we want to catch the last bus home. → Unless….. 4. How long have you practiced karate? → When….. 5. She is young but she is the most famous artisan in the village. → In spite….. 6. He grew up in a town famous for pottery making. → The town…..

She asked me “ Will you visit Hue next summer ? ”. She