【正文】 ? 2\ He was bolting his food rather than eating it. ? 他是在囫圇吞食物而不是吃 。sum234。 ? 2. 冒昧自薦，我們是本國最大的機械進口商之一，希望與貴公司建立貿(mào)易伙伴關(guān)系。 ? 2\ It is wellknown that the atom is made of still smaller particles. ? 眾所周知 ， 原子由更小的微粒組成 。 每周兩學(xué)時 ， 有效教學(xué)時間不少于 34學(xué)時 。 每兩學(xué)時完成課文和實用文體的教學(xué) 。 ? ? 2. provide sth. for sb. \ provide sb. with sth ? eg. 1\ We provide everything for our customers. ? 我們供應(yīng)顧客各樣?xùn)|西 。 ? 3. 從懷特先生處得知，貴公司是你們地區(qū)最主要的電子產(chǎn)品進口商之一，隨函附上我方產(chǎn)品插圖目錄及價目表。 for Kang Nali who is applying to study abroad. ? R234。 Key to the exercises ? Check your Understanding ? Ⅱ . Choose the correct word to match the sentence ? 1. venturi 2. armature 3. pump ? 4. diaphragm 5. filter 6. float ? 7. carburetor 8. discharge ? Ⅲ . Fill in the table below ? English Chinese ? fuel injector pump 噴油泵 ? airfuel ratio 空燃比 ? throttle plate 節(jié)氣門 ? fuel filter 燃油濾清器 ? fuel pump 燃油泵 ? magic coil 磁性線圈 ? secondary filter 次級濾清器 ? gasoline engines 汽油機 ? diesel engines 柴油機 ? intake valve 進氣門 ? Build Up Your Vocabulary ? Ⅰ . Write down the words that the important abbreviation stands for ? 1. electronic (idle) air control valve ? 2. electronic secondary air injection ? 3. electronic air suspension ? 4. electronic control advance ? 5. engine control module ? 6. engine coolant temperature ? 7. electronic diagnostic monitor ? 8. evaporative emission control system ? Ⅱ . Look at the picture and label it correctly using the words given below ? 1. fuel tank 2. overflow valve 3. fuel filter 4. feed pipe ? 5. hand primer 6. fuel feed pump 7. injection pump 8. return pipe ? 9. pressure pipe 10. bustion chamber 11. Injector 12. exhaust pipe ? 13. exhaust valve 14. return pipe 15. air cleaner 16. intake pipe Written Expressions 信用證 ? Complete the following Letter of Credit with the information given below ? 1. San Francisco, California 2. April 12, 2023 ? 3. Farley Clock Watch International Inc,55 Street, Rome, 66689 Italy ? 4. Lotus Rose Ltd, 67 Street, San Francisco, California ? 5. US $30,000 6. sight on bank of California ? 7. full 8. Fashion Clock and Watch ? 9. Purchase Order No. 88997 CIF San Fancisco ? 10. May 7,2023 Unit Six Text Engine Cooling System ? 一 ． Focal Words and Expressions ? watercooling system aircooling system medium ? coolant antifreeze water jacket ? thermostat water pump radiator ? radiator cap fan drive belt hose ? positive displacement type gear plungers ? radiator core radiator bottom tank radiator top tank ? fin and tube type ribbon cellular honey b type ? alternator centrifugal fan drive pulley ? radiator fin baffle plates air control ring ? 二 ． Focal Functions and Patterns ? 1. since +clauseadverbial of cause ? eg. 1\ Since water is so mon all over the universe, it is reasonable to believe that it exists in some form on the moon. 既然水是整個宇宙中很普遍的東西 ， 因此 ， 認(rèn)為月球上也存在某種形式的水是合理的 。 ? ? 2. rather than ? eg. 1\ He should be rewarded rather than punished. ? 他應(yīng)受獎勵而不應(yīng)受懲罰 。 Key to the exercises ? Check Your Understanding ? Ⅱ . Choose the correct word to match the sentence ? 1. piston 2. block 3. cylinder ? 5. flywheel 6. crankcase ? 7. pin 8. turbulence ? Ⅲ . Fill in the table below ? English Chinese ? power mechanism 動力裝置 ? thermal energy 熱能 ? kiic energy 動能 ? piston head 活塞頂部 ? mechanical energy 機械能 ? connecting rod 連桿 ? heat dam 絕熱槽 ? power stroke 做功行程 ? inertia forces 慣性力 ? piston ring 活塞環(huán) ? Build Up Your Vocabulary ? Ⅰ . Write down the words that the important abbreviation stands for ? 1. digital analog converter ? 2. drive axle ratio ? 3. drawbar horse power ? 4. dual diaphragm distributor ? 5. direct fire unit ? 6. distributor ignition ? 7. doubleoverheadcamshaft (engine) ? 8. diagnostic trouble code ? Ⅱ . Look at the picture and label it correctly using the words given below ? 1. intake stroke 2. pression stroke 3. power stroke 4. exhaust stroke ? 5. bustible mixture 6. intake valve 7. spark plug 8. exhaust valve 9. exhaust gas ? Read carefully the information given below and write a r234。特函探詢，能否發(fā)展有利于你 我雙方的合作關(guān)系。 ? ? Unit Four ? Text Valves and Valve Train ? Reading Material Engine Analyzer ? 科技英語知識 [1] 科技英語詞匯的來源和分析 ? Unit Five ? Text Engine Fuel System ? Reading Material The Carburetor of a Gasoline Engine ? Written Expressions Letter of Credit ? ? Unit Six ? Text Engine Coolin