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hoangyenk33
2 năm trước
Một ô tô đi từ A đến B với vận tốc là 50km/h, rồi đi từ B về A với vận tốc lớn hơn vận tốc lúc đi là 10km/h. Tính quãng đường AB biết thời gian về nhanh hơn thời gian đi là 24 phút
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( giải nhanh giúp mnh nha mình cần gấp lắm mình cgo vote 5*) V. Reading. Passage 1 : Choose the word ( A,B,C,D ) that best fits the blank space in the following passage. How you can keep your Teeth Healthy It’s also important to visit the dentist twice a year. Besides (1)….for signs of cavities or gum disease, the (2)… will help keep your teeth extra clean and can help you learn the best way to (3)….and floss. It’s not just brushing and flossing that keep your teeth (4)…-you also need to be careful about what you eat and drink. Remember , the plaque on your (5)….is just waiting for that sugar to arrive. Eat lots of (6)…..and vegetables and drink water instead of soda. And don’t forget to smile! 1.A. checking B.speaking C.listening D.reading 2.A.doctor B.dentist C.teacher D. pilot 3.A.wash B.brush C.learn D. eat 4.A. health B.healthily C.healthy D.healthier 5.A.face B. hand C.teeth D.feet 6.A.fruits B.tomatoes C.potatoes D.sweets Passage 2:Read the passage. Decide the statements TRUE or FALSE. How can we keep our teeth healthy? First, we ought to visit your dentist twice a year. He can fill the small holes in our teeth before they destroy the teeth. Secondly, we should brush our teeth at least twice a day- once after breakfast and once before we go to bed. We can also use wooden toothpicks to clean between our teeth after meals. Thirdly, we should eat food that good for our teeth and body: milk, fish, potatoes, raw vegetables and fresh fruit . Chocolates, sweets, biscuits are bad especially when we eat them between meals. They are harmful because they stick to our teeth and cause decay. 1.We ought to visit our dentist twice a day . ………………… 2.We should brush our teeth before going to bed. …………………. 3.Milk, fish, potatoes,raw vegetables and fresh milk are good for our teeth ………….. 4.Chocolate is not good for our teeth and causes decay ………………..

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