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理工類職稱英語B級模擬題(概括大意)

　　職稱英語考試備考開始拉開序幕，為了幫助大家更好地備考，以下是yjbys網(wǎng)小編整理的關(guān)于理工類職稱英語B級模擬題(概括大意)，供大家備考。

理工類職稱英語B級模擬題(概括大意)

　　理工類職稱英語B級模擬題(概括大意) 1

　　第3部分：概括大意與完成句子(第23"-30題，每題l分，共8分)

　　下面的短文后有2項測試任務(wù)： (1)第23——26題要求從所給的6個選項中為指定段落每段選擇l個小標題; (2)第27——30題要求從所給的6個選項中為每個句子確定一個最佳選項。

　　Ward off Travel Bugs

　　(1) As the holiday season approaches, so does the prospect of jet lag, an upset stomach or sunburn.

　　With care and some help fiom natural sources, however, it is quite possible to avoid these problems.

　　(2) You can start to prepare a couple of weeks before you leave. Food poisoning will make any holiday miserable, but by taking some medicine such as lactobacillus and bifidobacteria, you can reduce the likelihood of poisoning caused by food or water tainted (感染，污染) with unfamiliar bacteria.

　　(3) By improving the bacteria balance in your digestive tract, you crowd out the pathogenic (病原的)bacteria and stop them gaining a foothold. The beneficial bacteria also produce gentle but effective natural antibiotics (抗生素) in yourgut.

　　(4) In many holiday locations you need to remember the basics: drink bottled water, avoid undercooked meat and ensure that food hygiene (衛(wèi)生) is adequate. If you get food poisoning,drink plenty of water to stay hydrated(保持水分)and see a doctor. However, if you detect diarrhea(腹瀉) early enough, you might like to try taking about 10 or 15 pancreatic digestive enzymes, which can digest the multiplying bacteria before they take over.

　　(5) Taking a teaspoon of silicol gel can also help. This lines the stomach and upper intestinal area and binds with bacteria and viruses, allowing them to be safely passed out of the gut. When you pack,include grapefit-it-seed extract, which is an excellent all-round anti-bacterial, anti- parasitic,anti-viral (抗毒的) and anti-fungal (殺菌的) agent.

　　(6) Your flight can also be made more pleasant. Peppermint oil and ginger capsules (膠囊) ward off motion sickness, but a more delicious option is to eat crystallized ginger. If you tend to get ear-ache on take-off and landing, you can use special ear plugs with filler that slows down the rate of change in air pressure.

　　(7) The greatest concern is "economy class syndrome", the popular name for deep-vein thrombosis (血栓癥) , which can lead to blood clots traveling from the legs to the lungs, heart or brain. To reduce this, you need a couple of hours to stay hydrated, and avoid alcohol.

　　(8) You can also reduce the severity of inflammation by taking a daily gram of vitamin C with the bioflavonoid quercetin. Vitamin C and quercetin also help to reduce prickly heat.

　　(9) Finally, if any adverse symptoms persist while overseas, you should see a doctor.

　　23. Paragraph 1 ___________

　　24. Paragraph 4 ___________

　　25. Paragraph 5 ___________

　　26. Paragraph 6 ___________

　　A. Basics of What to Eat and Drink

　　B. Medicine Against Bacteria and Vlruses

　　C. Importance of bacteria balance

　　D. Basics of Having a Pleasant Flight

　　E. A Teaspoonful of Helpful Silicol

　　F. Preparations Against Food Poisoning

　　27. Food-poisoning may pose a problem ___________ .

　　28. It is important to drink a lot of water ___________ .

　　29. Special earplugs can make you feel better ___________ .

　　30. Dont forget to bring necessary medicine ___________ .

　　A. when your plane is about to land

　　B. when you are taking tablets

　　C. when you suffer from food-poisoning

　　D. when you are travelling

　　E. when you are packing for your tour

　　F. when you are having a cold

　　答案與解析：

　　23.B。文章第一段主要講的是水對人體的重要性。人體約有60%——70%是由水組成的，體溫的調(diào)節(jié)離不開水，滋養(yǎng)物運行到各器官離不開水，排除廢物等亦都離不開水。選項B(水的重要性)概括了本段的大意，為正確選項。

　　24.D。文章第二段主要講脫水的征兆，其中包括關(guān)節(jié)與肌肉的慢性疼痛、腰痛、頭痛、便秘、口渴等。選項D(脫水的征兆)概括了本段的大意，為正確選項。

　　25.A。文章第三段主要講人體每天所需的基本飲水量以及一些特殊情況下所需的飲水量。選項A(每天需要的用水量)概括了本段的大意，故為正確選項。

　　26.F。文章第四段主要講隨身攜帶水瓶及時飲水的必要性。選項F概括了本段的大意，故為正確選項。

　　27.B。題干：人不能活__________。利用題干關(guān)鍵詞live定位到文章的第一段“we cannot live without it”，意思為“我們沒有它就活不了”，這里的“它”指的是水，所以B(沒有

　　水)為正確選項。

　　28.A。脫水就會發(fā)生如果缺水__________。利用題干關(guān)鍵詞可以定位到文章的`第二段，可以得知人體缺水便可產(chǎn)生脫水現(xiàn)象，所以A(在體內(nèi))為正確選項。

　　29.F。身體每天需要的水量與__________有關(guān)。利用題干關(guān)鍵詞water your body needs per day可以定位到文章第三段，該段指出，“一個比較好的做法就是用英鎊來測量你的體重然后將其分成兩半，這個數(shù)字就是你身體每天需要的水量，以盎司為單位”，由此可知人體每天需飲水量與人的體重有密切關(guān)系，所以F“體重”為正確選項。

　　30.E。不要忘了喝足夠的水，甚至__________。利用題干關(guān)鍵詞drink enough water可以定位到文章第四段“It may be difficult to drink enough water on a busy day,but make sure you have water handy at all times”，意為“可能在忙碌的時候保證喝足夠的水是困難的，但是要確保手邊總是有水”，由此可知E“忙的時候”為正確選項。

　　理工類職稱英語B級模擬題(概括大意) 2

　　Maglev Trains

　　A few countries are using powerful electromagnets to develop high-speed trains, called maglev trains. Maglev is short for magnetic levitation1, which means that these trains float over a guide way using the basic principles of magnets to replace the old steel wheel and track trains.

　　If you’ve ever played with magnets, you know that opposite poles attract and like poles repel each other. This is the basic principle behind electromagnetic propulsion. Electromagnets are similar to other magnets in that they attract metal objects, but the magnetic pull is temporary. You can easily create a small electromagnet yourself by connecting the ends of a copper wire to the positive and negative ends of an AA-cell battery. This creates a small magnetic field. If you disconnect either end of the wire from the battery, the magnetic field is taken away.

　　The magnetic field created in this wire-and-battery experiment is the simple idea behind a maglev train rail system. There are three components to this system: A large electrical power source, metal coils lining a guide way or track, and large guidance magnets attached to the underside of the train.

　　The big difference between a maglev train and a conventional train is that maglev trains do not have an engine-at least not the kind of engine used to pull typical train cars along steel tracks4. The engine for maglev trains is rather innoticeable. Instead of using fossil fuels, the magnetic field created by the electrified coils in the guideway walls and the track combines to propel the trains.

　　The magnetized coil running along the track, called a guideway, repels the large magnets on the train’s undercarriage, allowing the train to levitate between 1 to 10 cm above the guideway. Once the train is levitated, power is supplied to the coils within the guideway walls to create a unique system of magnetic fields that pull and push the train along the guideway. The electric current supplied to the coils in the guideway walls is constantly alternating to change the polarity of the magnetized coils. This change in polarity causes the magnetic field in front of the train to pull the vehicle forward, while the magnetic field behind the train adds more forward thrust.

　　Maglev trains float on a cushion of air, eliminating friction. This lack of friction allows these trains to reach unprecedented ground transportation speeds of more than 500 kph, or twice as fast as the fastest conventional train. At 500 kph, you could travel from Paris to Rome in just over two hours.

　　23. Paragraph 3 _____

　　24. Paragraph 4 _____

　　25. Paragraph 5 _____

　　26. Paragraph 6 _____

　　A. The Main Components of the Maglev Train System

　　B. High-speed Maglev due to Zero Friction

　　C. The Working Principle of the Maglev Train

　　D. Differences between Polarity and Magnetic Field

　　E. Comparison of Maglev Trains with Traditional Ones

　　F. Maglev with a Powerful Motor

　　27. Several countries in the world are using strong electromagnets _____.

　　28. You can connect a wire to the positive and negative ends of a battery _____.