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Air pollution is a cause of ill-health in human beings. In a lot of countries there are laws limiting the amount of smoke which factories can produce. Although there isn’t enough information on the effects of smoke in the atmosphere, doctors have proved that air pollution causes lung diseases. The gases from the exhausts of cars have also increased air pollution in most cities. The lead in petrol produces a poisonous gas which often collects in busy streets surrounded by high buildings. Children who live in areas where there is a lot of lead in the atmosphere cannot think as quickly as other children and they are clumsy when they use their hands. There are other long-term effects of pollution. If the gases in the atmosphere continue to increase, the earth’s climate may become warmer. A lot of the ice near the Poles may melt and may cause serious floods. 1. What can make people sick? ___________________________________________________ 2. Where does smoke come from? ___________________________________________________ 3. Can air pollution cause lung diseases? ___________________________________________________ 4. What else can cause air pollution in cities? ___________________________________________________ 5. Why does the earth’s climate become warmer? ___________________________________________________

Câu 1: Thay thế các danh từ cần thiết bằng đại từ thích hợp để câu văn không bị lặp rồi chép lại câu văn khi đã thay: a)Cu Bôn đuổi theo con chuồn chuồn. Cuối cùng cu Bôn chộp được con chuồn chuồn. b)Tấm đi qua hồ, Tấm vô ý đánh rơi một chiếc giày xuống nước. Câu 2 :Hai từ chặt và nắm ở dòng nào dưới đây đều là động từ: A.Tên trộm bị trói chặt/ nắm lấy sợi dây thừng. B.Mẹ chặt thịt gà dưới bếp/ ăn hết một nắm cơm. C.Đừng chặt cây cối/ bé nắm chắc tay em. Câu 3 : Trong các dòng dưới đây, dòn nào có các từ in hoa là từ nhiều nghĩa? a)thi ĐẬU,hạt ĐẬU,chim ĐẬU trên cành b)VÀNG nhạt,VÀNG hoe,VÀNG tươi c)xương SƯỜN,SƯỜN núi,SƯỜN dê Câu 4 : dòng nào dưới đây có các từ in hoa mang nghĩa chuyển a.CHÂN trời,CHÂN bàn,CHÂN ghế. b.CÁNH buồm,CÁNH đồng,CÁNH chim c.xương SƯỜN,SƯỜN núi,SƯỜN xe đạp

Một vật có khối lượng m = 4,0 kg bắt đầu chuyển động trên mặt sàn năm ngang dưới tác dụng của một lực F hợp với hướng chuyển động một góc a = 30°. Hệ số ma sát trượt giữa vật và sàn là ut = 0,30. Cho biết độ lớn lực kéo F = 17 N và gia tốc trọng trường g = 10m/s². Tính quãng đường vật đi được trong giây thứ 5 kể thừ khi vật bắt đầu chuyển động.

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VI. Read the text. Some of the lines are correct and some have a word which should not be there. If a line is correct, put a tick () in the space provided. If a line has a word which should not be there, write it in the space provided. SPELL IT AS YOU HEAR IT! 0. Have you ever wondered where the expression 00. O.K., which it means all right, comes from originally? 57. In one amusing story the expression said is attributed to the 58. American President Andrew Jackson who, like to many before 59. and after him, was a soldier by occupation. Unlike the most 60. presidents these days, who have spent many years 61. at college, Jackson’s education was not as 62. complete as that his military training and it 63. is said his spelling was not as much good as 64. it should have been. Of course, a great many 65. papers were been given to the president to 66. sign but he did not never want to write 67. much at the bottom of these papers so, when 68. he agreed with what thing was written, he 69. would simply write O.K. on to the paper because 70. President Jackson believed in the spelling of “All Correct" 71. to be “Orl Kerekt”, or O.K. as for short! 0. …… 00. …it… ………………………………. ………………………………. ………………………………. ………………………………. ………………………………. ………………………………. ………………………………. ………………………………. ………………………………. ………………………………. ………………………………. ………………………………. ………………………………. ………………………………. ………………………………. C. READING I. Look at the sentences below about the ancient Chinese art of Feng Shui. Read the text to decide if each sentences is correct or incorrect. If it is correct, put A. If it is not correct, put B. 72. Feng Shui has been practised all over the world for 5000 years. ……….. 73. Feng Shui says that family members will get on better with each other if the home is properly furnished. ……….. 74. The entrance of the home should be neat and tidy. ……….. 75. The living room should be made to look as small as possible. ……….. 76. Windows in the living room should be covered. ……….. 77. Stereos and CD players should be kept in the bedroom, if possible. ……….. 78. A sheet could be used instead of a table-cloth to cover the TV. ……….. 79. Sleeping under a window is not a good idea. ……….. 80. It’s important to have a good view of the bedroom door from the bed. ……….. 81. A single strong light in the bedroom is better than several soft ones. ……….. FENG SHUI Feng Shui is the art of arranging your home and the things in it in the best possible way. It began in China about 5000 years ago, but recently architects and designers all over the world have started to include the idea in their work. The most important thing to understand about Feng Shui is the idea of “chi”, which means vital energy or life force. The art of Feng Shui is to make sure that the right objects are in the right places so that the “chi” can flow freely around the home. This is said to create good health and financial well-being as well as improved relationships between parents and children and husband and wife. You can improve your own Feng Shui by trying some of the techniques listed below. Firstly, keep the hall of your home clear of shoes, umbrellas and other objects. This is to allow the “chi” to enter your home freely. If possible, put a small indoor fountain in this part of your home. In the living room, choose furniture which is the right size for the room and arrange it so that people can move around the room comfortably. If the room is small, hang a mirror to create a feeling of space. Make sure you have blinds or curtains to prevent the “chi” from escaping. The bedroom is considered a very important area in Feng Shui. It is best not to have a television or any other electrical item in here, but if you find it impossible to live without them, you can cover them with a plastic table¬-cloth when you have finished using them. The table-cloth must be plastic - other materials will not work. It is also important to unplug everything before you sleep. The head of the bed should be against a wall rather than under a window, as this would allow your “chi” to escape. You should be able to see the door easily while you are lying in bed. Place lamps by your bed for lighting instead of bright lights in the ceiling. Try these simple ideas for a few months and see how much energy and happiness you can bring into your home.

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viết thư Quốc tế UPU lần thứ 50 (năm 2021) với chủ đề: “Em hãy viết thư cho một người thân trong gia đình để chia sẻ trải nghiệm của mình về đại dịch COVID-19” ( no copy mạng )