Kết luận nào sai khi nói về trọng lượng của vật A. Trọng lượng có cường độ bằng cường độ của trọng lực. B. Có thể xác định độ lớn trọng lượng của vật bằng lực kế. C. Trọng lượng của một vật có độ lớn được tính theo công thức P=10.m. D. Trọng lượng của vật tỉ lệ nghịch với khối lượng của vật.
Cho 3 điểm A ( 1;-2;0 ) B ( 2;-1;1 ) C ( 1;1;0 ) D ( 0;-2;0 ). Viết phương trình mặt phẳng đi qua trọng tâm G của tam giác ABC và vuông góc với CD
Giải thích ngắn gọn nhưng đầy đủ về sơ đồ đường chéo . Cho mình một ví dụ đơn giản luôn ạ ( có giải thích )
IV. Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions. 101. The amount of solar energy that reaches the earth depends _____the atmosphere. A. on B. to C. of D. with 102. We _____ an interesting football match when the lights went out. A. watch B. were watching C. watched D. have watched 103. The girl _____ you visited last month is a famous scientist. A. what B. whose C. which D. whom 104. Mr Nam, _____I told you about yesterday, is my neighbor. A. whom B. that C. whose D. which 105. The picture at _____ she was looking was beautiful. A. who B. which C. that D. what 106. The girl _____ you’ve just talked to is my youngest sister. A. whose B. which C. Ø D. what 107. They work in a hospital _____ by the government. A. sponsored B. sponsoring C. to be sponsored D. which is sponsoring 108. The first person _____ the ball will be the winner. A. catches B. to catch C. caught D. catching V. Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions. 109. Solar energy is not only plentiful but also infinite. A. rapid B. strong C. limited D. unlimited 110. Many organizations have been set up and funds have been raised. A. established B. collapsed C. delayed D. decreased 111. Hunting for meat and burning forests for soil cause destruction to wildlife. A. organization B. contamination C. protection D. damage 112. If people continue to interfere with the environment, more species will disappear. A. survive B. protect C. help D. destroy 113. People in this region cultivate mainly rice and vegetables. A. destroy B. grow C. develop D. support 114. Fossil fuels will be running out within a short period of time. A. exhausted B. unlimited C. renewable D. polluted 115. Our well-trained staffs are always courteous to customers. A. helpful B. rude C. friendly D. polite 116. People are changing weather conditions by cutting down trees in the forest. A. hurting B. destroying C. protecting D. hunting 117. The number of rhinoceroses is declining due to habitat destruction and illegal hunting A. going up B. increasing C. decreasing D. climbing 118. You can subscribe to your favorite newspapers and magazines at the nearest post office. A. offer B. send C. register D. provide 119. Our post office offers the best services with a well-trained staff. A. qualified B. impolite C. beautiful D. rule 120. Many national parks should be set up to save many animals and plants. A. postponed B. decreased C. delayed D. established
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2. Em hãy viết một doan văn tả từng thời ki phát triển của một cây mà em yêu thích. 3. Em hãy viết một doan văn tả lá, thân, gốc của một cây mà em yêu thích.
hãy so sánh giữa lệnh lặp For...do và While... do
IV. Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions. 61. We continue to cut _____ rainforests and increase the dangers of global warming. A. off B. in C. down D. out 62. The rain _____ by the time the class was over. A. was stopping B. stopped C. has stopped D. had stopped 63. The paintings _____ Mr Flowers has in his house are worth around $ 100,000. A. which B. whose C. what D. whom 64. My friend Nigel,_____ works in this city, earns much more than I do. A. whose B. which C. who D. that 65. The musicians _____ yesterday have played together for many years. A. to whom we listened B. to who we listened C. to that we listened D. which we listened to 66. The chemistry book ______ I bought was a little expensive. A. what B. whom C. whose D. Ø 67. The energy ______ by the windmill drives all the drainage pumps. A. that is producing B. produced C. which produces D. producing 68. Neil Armstrong, the first person ______ on the moon, reported that the surface was fine and powdery. A. set foot B. to set foot C. whom set foot D. setting foot 69. Human beings are responsible _____ the changes in the environment. A. with B. to C. for D. up 70. Mr. Park _____ home from work when he saw the accident. A. walked B. walks C. is walking D. was walking 71. The family _____ car was stolen last week is the Smiths. A. who B. whose C. which D. that 72. He came to the party wearing only a pair of shorts and a T-shirt, _____ was a stupid thing to do. A. who B. whom C. which D. that 73. The people to _____ I talked yesterday were very friendly A. whom B. who C. whose D. that 74. The flight _____ I want to travel on was fully booked. A. who B. whom C. whose D. Ø 75. The instructions _____ by Professor Johnson helped us know more about the danger of energy pollution. A. that explained B. explained C. explaining D. which explained 76. Lady Astor was the first woman _____ her seat in Parliament. A. to take B. take C. taking D. who takes 77. Human beings have a great influence _____ the rest of the world. A. of B. on C. with D. in 78. We have lost touch since we _____ school three years ago. A. were leaving B. have left C. leave D. left 79. The dictionary _____ you gave me is very good. A. which B. whom C. who D. whose 80. Peter, _____ is studying French an German, has never been abroad. A. whom B. who C. that D. whose 81. The woman about _____ I’ve just told you teaches us Maths. A. that B. which C. whom D. who 82. The man _____ she is married to is an engineer. A. what B. whose C. which D. Ø 83. The students _____ last week are lazy. A. punished B. are punishing C. were punished D. who were punishing 84. John was the last man _____ the top of the mountain. A. to reach B. reach C. reaching D. who reach 85. This post office is equipped _____ advanced technology of transaction. A. from B. with C. on D. to 86. When I came to his house, he _____ to music. A. listened B. was listening C. is listening D. listens 87. These are the pictures _____ my son drew when he was a child. A. who B. whom C. whose D. which 88. John Bridge, _____ is one of my oldest friends, has just gone to live in Canada. A. whom B. that C. whose D. who 89. The people to _____ I talked yesterday were very friendly. A. whose B. who C. whom D. that 90. The girl _____ I saw on TV last night is a singer. A. what B. whose C. which D. Ø 91. They live in house _____ in 1980. A. built B. was built C. is building D. which build 92. Nam was the last person _____ the classroom. A. to leave B. leave C. leaving D. left 93. Most of our energy comes _____ fossil fuels. A. of B. from C. with D. in 94. My uncle _____ the army when he was eighteen. A. was joining B. joined C. has joined D. joins 95. The computer _____ you have just bought is made in Japan. A. that B. whom C. whose D. who 96. Ba’s house, ____ has been decorated many times, now looks like a new one. A. which/that B. who C. that D. which 97. The man about ____ I told you works in the hospital. A. whose B. whom C. who D. which 98. The man _____we met last night was very interesting. A. what B. whose C. which D. Ø 99. I come from a city _____ in the southern part of the country. A. located B. was located C. that located D. is locating 100. The last student _____ the classroom must lock the door. A. to leave B. who is left C. is leaving D. leaving
7 đến 10 câu về một người góp bảo vệ trật tự an ninh ( đoạn văn , ko chép trên mạng
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