Giải bài tập SGK Tiếng Anh lớp 8 Unit 16 INVENTIONS

Doc24.vnGiải bài tập SGK Tiếng Anh lớp Unit 16 INVENTIONSGetting Started (Trang 147 SGK Tiếng Anh 8)Match these stages in the development of paper with the correct pictures.(Hãy ghép các giai đoạn phát triển của giấy đúng với những bức tranh sau.) Gợi ý:A b) Five thousand years ago, the Egyptians wrote on plant called papyrus.B c) Chinese official made paper from wood pulp in the year 105.C e) The Japanese learned how to make paper in the seventh century.D a) In 768, Arabs learned about papermaking from Chinese prisoners.E d) The first papermaking machine was invented in the late 1700s by Frenchman.Listen and Read (Trang 147-149 SGK Tiếng Anh 8)1. Practice the dialogue with partner.(Hãy luyện tập hội thoại với bạn em.)Tim Jones, Hoa's American pen pal, is visiting chocolate factory with his class and his teacher, Mrs.Allen. Mr. Roberts, the factory foreman, is showing them around.Doc24.vn( Tim Jones, người bạn quen biết qua thư từ của Hoa, đang thăm một nhà máy chế biến sô-cô-la cùngvới lớp cậu ấy và cô Allen. Quản đốc Robert, đang dẫn họ đi xem quanh nhà máy. Mr. Roberts: This is where the cacao beans are stored. Now follow me and I'll show you the first stepin the manufacturing process.Tim: Sam, what do you think this button is for?Sam: have no idea.Mrs. Allen: Tim! Sam! Come here!Mr. Roberts: Children, don't touch that button! Now, the beans are washed, weighed, and cooked here.Mrs. Allen: Tim, come and stand beside me. told you to behave!Mr. Roberts: After the shells are removed, the beans are crushed and liquified. Cocoa butter is added,alone with sugar, vanilla and milk. Then the mixture is ground, rolled and poured into molds.Tim: It looks delicious.Sam: Can we taste any?Mr. Roberts: Yes, there's some beside the conveyor belt.Hướng dẫn dịch:Mr. Roberts: Đây là nơi bảo quản hạt ca-cao. Còn bây giờ hãy theo tôi, tôi sẽ chỉ cho các bạn xembước đầu tiên của quá trình sản xuất.Doc24.vnTim: Sam, theo bạn cái nút này để làm gì?Sam: Mình không biết.Mrs. Allen: Tim, Sam lại đây các em.Mr. Roberts: Các cháu này, cái nút kia không sờ vào được đâu. Lúc này những hạt ca-cao đang đượcrửa sạch, đem lên cân rồi chế biến đây.Mrs. Allen: Tim, em lại đây đứng gần cô. Cô đã dặn em rồi mà.Mr. Roberts: Sau khi tách vỏ ra, hạt ca-cao được đưa vào xay và ép ra nước. Người ta thêm bơ cô-cacùng với đường, va-ni và sữa. Sau đó hỗn hợp này được nghiền ra rồi được cán và đổ ra khuôn.Tim: Trông ngon quá.Sam: Chúng cháu nếm thử được không ạ?Mr. Roberts: Được chứ. Có một ít trên băng chuyền kia kìa.2. Match the half-sentences. Then write the full sentences in your exercise book.(Hãy ghép các nửa câu lại với nhau thành câu đầy đủ rồi chép vào vở bài tập.)a The beans are cleaned before being cooked.b Mr. Roberts thought Tim and Sam were going to touch the button.c After cooking, the cocoa beans smell like chocolate.d Sugar is one of the ingredients in chocolate.Speak (Trang 149-150 SGK Tiếng Anh 8)1. Work with partner. Student looks at the table next page. Student looks at the table at theend of this unit (page 156). Ask and answer questions to fill in the missing information in yourtables.(Hãy làm việc với bạn bên cạnh. Học sinh nhìn bảng trang sau. Học sinh nhìn bảng cuốibài học này (trang 156). Hãy hỏi và trả lời để điền những thông tin còn thiếu vào bảng của em.)Doc24.vn STUDENT STUDENT (trang 156)Doc24.vn Gợi ý:Hỏi và trả lời:A: When was the bicycle invented?B: It was invented in 1816.A: Who was it invented by?B: By Frederick Koenig.A: What was his nationality?B: He was German.A: When was the color television invented?B: It was invented in 1950.A: Who was it invented by?B: By Peter Carl Goldmark.A: What was his nationally?B: He was American.Doc24.vnĐiền thông tin vào bảng: 2. Now report your findings to the teacher.(Hãy thuật lại những điều em đã biết với thầy/cô giáo.)- The facsmilie was invented by Alexander Bain in 1843.- The bicycle was invented by Ferderick Koenig in 1816.- The color television was invented by Peter Carl Goldmark in 1950.- The helicopter was invented by Igor Sikorsky in 1939.- The laser was invented by Gordon Gould in 1958.- The loudspeaker was invented by C. W. Rice in 1924.- The microphone was invented by D. E. Hughes in 1878.- The optical fibre was invented by Karl D. Sauerbronn in 1955.Doc24.vn- The printing press was invented by Narinder Kapany in 1810.- The reinforced concrete was invented by F. J. Monier in 1849.- The sewing machine was invented by Elias Howe in 1845.- The X-ray was invented by Wilhelm Konrad in 1895.Listen (Trang 150-151 SGK Tiếng Anh 8)1. Listen and fill in the gaps in these sentences.(Nghe và điền vào chỗ trống trong những câu sau đây.) a) Papermaking is (1) simple process.b) The procedure is almost the (2) same as it was (3) 200 years ago.c) The pulp vat is on the (4) left of the machine.d) The papermaking machine has lot of (5) rollers .2. Listen again. Put the sentences into the correct order.(Nghe lại lần nữa và xếp những câu sau đây theo đúng thứ tự.)Thứ tự đúng là: bc) Paper pulp was placed in the vat.d) Paper pulp was mixed with water.a) The pulp fibers were poured out.Doc24.vng) The pulp was conveyed under the rollers.f) The fibers were smoothed and pressed dry.b) The paper was put on roll.Nội dung bài nghe:Paper making is simple process. The procedure is almost the same as it was 200 years ago. Lookclosely at this picture of an old paper making machine. On the left if the pulp vat. Paper pulp wasplaced in the vat and mixed with lot of water. The water was then drained and the pulp fibers werepoured out of the vat and onto conveyor belt took them under the rollers. There were quite lot ofrollers as you can see. These rollers smoothed the fibers and pressed them dry. The finished paper wasthen put on roll at the end. You can see the roll of paper at the far right of the picture.Read (Trang 151-152 SGK Tiếng Anh 8)Read the following poem about inventions.( Đọc bài thơ sau về các phát minh. )Doc24.vn1. Match the headings to the verses.(Ghép các tiêu đề với các đoạn thơ.)Verse b) Appliances that cook food.Verse c) Appliances that clean or dry things.Verse a) Instrument invented by Alexander Graham Bell.2. Fill in each of the gaps in the sentences with one "invention" in the poem.(Điền vào chỗ trống trong những câu dưới đây bằng một "phát minh" trong bài thơ trên.)a) "Joan, where's the (1) vacuum want to clean the floor."b) Last night was reading in the bedroom when the (2) telephone rang. It was Ann, an old friend Ididn't see for more than twelve years.c) (3) washing machine is kitchen appliance that automatically washes, rinses, and dries dishes andutensils.d) "Jane, why don't you put the meat in the (4) microwave to defrost it?"e) "Can borrow your (5) hairdryer I've just washed my hair."f) The Romans knew how to toast bread over an open five two thousand years ago. We now toast breadwith (6) toaster on the table.Write (Trang 152-153 SGK Tiếng Anh 8)1. Fill in each gap with one of these sequence markers to describe the procedure of papermaking.(Điền vào mỗi chỗ trống bằng từ nối để mô tả quy trình sản xuất giấy.)first then (2) next after this finallyHow Paper Is MadeDoc24.vn(1) First logs are cut into small chips. (2) Then they are mixed with water and acid. (3) Next they areheated and crushed to heavy pulp. This wood pulp is also cleaned and chemically whitened. (4) Afterthis it is passed through rollers to be flattened. (5) Then sheets of wet paper are produced. (6) Finally ,the water is removed from the sheets which are pressed, dried and refined until the finished paper isproduced.2. Look at the sequence of pictures that describe how cacao beans are processed. Put them in thecorrect order.(Nhìn tranh mô tả quá trình chế biến hạt ca-cao rồi xếp đúng thứ tự các bức tranh.) Trình tự các câu theo đúng thứ tự các bức tranh là:1 d) The fruit harvest is fermented for three to nine days to kill the beans and turn them brown.2 a) The beans are dried in the sun.3 e) The beans are cleared in special machines.4 c) The beans are roasted to bring out the chocolate favour.5 b) They are shelled and ground to produce chocolate liquor.6 f) The liquor is made into chocolate candy or cocoa powder.Now use the sequence markers in exercise 'write 1' to link sentences together in paragraph.(Bây giờ hãy dùng từ nối bài tập để nối các câu trên lại với nhau thành một đoạn văn.)