Bài 21*: Tìm hai số tự nhiên a và b biết a)UCLN(a,b)+BCNN(a,b)=19 b)BCNN(a,b)-UCLN(a,b)=5

Một miếng vải hình tam giác có độ dài đáy là 2,5 m và chiều cao là 1,2 m vậy diện tích của miếng vải hình tam giác đó

Cho MN =20mm xác định điểm P sao cho N là trung điểm của MP

tìm và nêu tác dụng của các hình ảnh tự sự kết hợp miêu tả trong văn bản làng cảu Kim Lân

Giải bài Tập làm văn:Lập chương trình hoạt động.d. Quyên góp ủng hộ thiếu nhi và nhân dân các vùng bị thiên tai

Energy is one of the problems that many people are interested in. It is not an unfamiliar word. It is heard, said, discussed day after day. It is close to everyone’s daily life. You turn on a lamp and it is energy that gives you light. You turn on a TV and it is energy that gives you pictures and sound. You ride a motorcycle and it is energy that gives you movement. You cook your meals and it is energy that gives you heat to boil rice. The problem is that the demand for energy is rising and that the price of energy is getting higher and higher. The supply of energy on earth is limited. It can not provide us forever. The shortage of energy in the future is inevitable. Therefore, saving energy is a must if we want to continue to live in a safe and sound world. (familiar: thân thuộc/ demand: nhu cầu/ inevitable: chắc chắn xảy ra) PART II: Read the passage again and answer the questions (0,5) 20..How is the price of energy nowadays? …………………………………………………………………………………………. 21.What should you do to save energy at home? ………………………………………………………………………………………….. …………………………………………………………………………………………..

tìm y biết : a) y:0,4:2,5=10,5 b) y x 16,5+y x 82,5 + y= 128

a, -7x=42 b, 3x-(-5)=8 /x-4/=9 Giải đc em tặng 5 sao ạ

I.WORD FORMS 1.Bruce plays table tennis very............ (good) 2.My sister is a.........girl (beauty) 3.Tom is a good soccer............ (play) 4............is his favorite sport (swim) 5.Mary is ............ in listening to Pop music (interest) 6.You should............ after school (relaxing) 7.There are a lot of.......... flowers in the park (beautifully) 8.His father goes..........every morning (jog) 9.It’s raining.......... at this time (heavy) 10.Hung and Tan are my best................ (friendly) Answer: 1.............. 2............. 3............. 4.............. 5............. 6............. 7............. 8............. 9.............. 10............. II. WRITE a. Rearrange: 1.your mother /at the present /is/ doing /what? → .......................................................................................... 2.goes walking /in the mountain /often /he. →........................................................................................... 3.fly our kites /usually /on Sundayafternoon /we. →........................................................................................... 4.goes shopping /her mother /always /with/ Mary. →........................................................................................... 5.skip rope /every day /these girls /do? →........................................................................................... 6.go camping /every week /they /don’t. → .......................................................................................... 7.at the moment /are playing soccer /the students /in the school yard. →........................................................................................... 8.you/ with/ go fishing/ do/ usually/ who? →........................................................................................... 9.Peter/ in his room/ now/ his homework/ is doing. →........................................................................................... b. Transformation 1.We like basketball very much. →Our favorite ................................................................ 2.The people don’t have a tent so they never go camping. →The people never go ...................................................... 3.We usually walk to the park. →We usually ................................................................. 4.Her father always goes to work on time. →Her fatheris ............................................................... 5.What does his sister play? →Which ...................................................................... 6.The students don’t go to school on Sundays. →The students ............................................................... 7.I love reading comic books in my free time. →I am ......................................................................... 8.They travel to Nha Trang beach two times a year. →They travel ............................................................

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