Cho một mạch điện gồm: 2 pin, 1 bóng đèn, 1 ampe kế đo cường độ dòng điện trong mạch, 1 vôn kế đo hiệu điện thế giữa hai đầu bóng đèn, 1 khóa K và một số dây dẫn. Khi đóng khóa K đèn sáng bình thường. a) Hãy vẽ sơ đồ mạch điện thích hợp. b) Hãy kí hiệu các cực của pin, các chốt của ampe kế và xác định chiều của dòng điện trong mạch.

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1. Read the following text carefully and choose the correct answer A, B, C or D for each of the gap. When you are in Singapore, you can go about (1) taxi, by bus, or by underground. I myself prefer the underground (2) it is fast, easy and cheap. There are (3) buses and taxis in Singapore and one cannot drive along the road (4) and without many stops, especially on Monday morning. The underground is therefore usually quicker (5) taxis or buses. If you do not know Singapore very well, it is difficult (6) the bus you want. You can take a taxi, but it is (7) expensive than the underground or a bus. On the underground, you find good maps that (8) you the names of the stations and show you (9) to get to them, so (10) it is easy to find your way. 1. A. by B. in C. at D. on 2. A. but B. because C. when D. so 3. A. few B. a lot C. many D. some 4. A. quick B. quickly C. quicker D. quickest 5. A. so B. like C. than D. as 6. A. find B. to find C. finding D. found 7. A. less B. more C. most D. much 8. A. tell B. told C. tells D. telling 9. A. who B. what C. when D. how 10. A. how B. that C. when D. where 2. Choose the correct word. 1. We were all (horrifying/horrified) when we heard about the disaster. 2. It’s sometimes (embarrassing/embarrassed) when you have to ask people for money. 3. Are you (interesting/interested) in football? 4. I enjoyed the football match. It was quite (exciting/excited). 5. It was a really (terrifying/terrified) experience. Afterwards everybody was very (shocking/shocked). 6. I had never expected to be offered the job. I was really (amazing/amazed) when I was offered it. 7. The kitchen hadn’t been cleaned for ages. It was really (disgusting/ disgusted). 8. Do you easily get (embarrassing/embarrassed)? 3. Find the word which has a different sound in the underlined part. 1. A. recommend B. seatbelt C. vehicle D. investigate 2. A. performed B. approached C. advertised D. murdered 3. A. illegal B.sign C. critic D. direct 4. A. terrified B. entertained C. produced D. engaged 5. A. talked B. needed C. cooked D. booked 6. A. joined B. looked C. played D. preffered 7. A. centre B. let C. belt D. security