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HLinh
2 năm trước
1/ Con lắc lò xo DĐĐH. Vật nặng có khối lượng50g, lò xo có độ cứng độ cứng 50N / m DĐĐH vớibiên độ 4cm. a / T chu kì, tần số b / Tính năng lượng dao động? c/ Tính lực kéo về khi có li độ 1cm, 3cm. d / Tính lực kéo về cực đại.
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Ex1. Choose the best option A, B, or C to complete the sentences. 1. Phong and Nam_________in grade 6. A. am B. is C. are 2. Binh: How do you go to school? Minh:………go to school……bike. A. He/ by B. She/ in C. I/ by 3. I do my homework in the afternoon but my brother does ……homework after dinner. A. my B. her C. his 4. My sister________ to the movie every weekend. A. goes often B. often goes C. often go 5. Policeman: Where …… your mother work? Mai: - …….. in a factory. A. do…./She work B. does/ He works C. does/ She works 6. I study at Thai Hoc lower Secondary School but my brother …..at Vu Huu School. A. study B. studies C. studying 7. Listen! Someone ………singing. A. is B. are C. am 8. We ………Phu Quoc island last month. A. visit B. visited C. visiting 9. ………… did you go yesterday morning? I ……… to the bookshop. A. What/ go B. Where/ went C. When/ went 10. Grandma: What…..the weather be like tomorrow? – Niece: It’ll be dry and cool. A. visit B. visited C. visiting Ex2. Fill ONE word in each gap. My full name is. I am … class 6C. I (2)….to Thai Hoc Lower Secondary School. My new school (3)…….big and nice. There (4)……. many trees in the school yard, so It …..green and fresh here. Our new teachers (5)…….very friendly and helpful. I like my school very much.

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