【文章內(nèi)容簡(jiǎn)介】 C.fierceD.acceptable（4）To save the cost for the flight, you should ________.A.check whether the upgrade is free before you bump to the first classB.make sure your clothes and shoes are fit for a lot of walkC.share your own snacks with other passengersD.plan to do the washes on flight【答案】 （1）C（2）D（3）A（4）A 【解析】【分析】本文講述了買到便宜的飛機(jī)票的幾個(gè)竅門。( 1 )細(xì)節(jié)理解題。根據(jù)第二段Getting the best fare. Airlines put out their fare sales on Tuesday morning, making this day the best day to book a flight for ，票價(jià)通常在星期二公布，所以這一天是以低價(jià)訂票的好時(shí)機(jī)。故選C。( 2 )細(xì)節(jié)理解題。根據(jù)第三段第三句You can also find reduced rates on early morning flights, since many people don39。t like to get up before the sun to get to the ，預(yù)訂早班航班將有助于你節(jié)省花費(fèi)，因?yàn)樵绨鄼C(jī)坐的人少，票價(jià)較便宜。故選D。( 3 )詞義猜測(cè)題。根據(jù)倒數(shù)第四段中Sometimes upgrades are free, but mostly you will be charged for seeking a lastminute bump to first class, and the cost can be ，升級(jí)座位只是有時(shí)候免費(fèi)，但是大多數(shù)情況下，你會(huì)在最后一分鐘尋找頭等艙時(shí)被收費(fèi)，而且成本是昂貴的，故選A。( 4 )推理判斷題。根據(jù)倒數(shù)第四段Sometimes upgrades are free, but mostly you will be charged for seeking a lastminute bump to first class, and the cost can be ，升級(jí)座位只是有時(shí)候免費(fèi)，所以在升級(jí)成頭等艙時(shí)要先確認(rèn)。4．閱讀理解 It is bad to have food stuck between your teeth for long periods of time. This is because food attracts germs。 germs produce acid, and acid hurts your teeth and gums. Flossing (使用牙線) helps to remove the food that gets stuck between your teeth. This explains why flossing helps to keep your mouth healthy, but some doctors say that flossing can also be good for your heart. It may seem strange that something you do for your teeth can have any effect on your heart. Doctors have e up with a few ideas about how flossing works to keep your heart healthy. One idea is that the germs that hurt your teeth can leave the mouth and travel into your that get into the blood can then attack your heart. Another idea is based on the fact that when there are too many germs in your mouth, the body tries to fight against there germs. For some reason, the way the body fights these mouth germs may end up weakening the heart overtime. Not every doctor agrees about these ideas. Some doctors think that the link between good flossing habits and good heart health is only a coincidence. The incidence (發(fā)生率) of two or more events is pletely random, as they do not admit of any reliable cause and effect relationship between them. For example, every time I wash my car, it rains. This does not mean that when I wash my car, I somehow change the weather. This is only a coincidence. Similarly, some doctors think that people who have bad flossing habits just happen to also have heart problems, and people who have good flossing habits just happen to have healthy hearts. The theory that flossing your teeth helps to keep your heart healthy might not be true. But every doctor agrees that flossing is a great way to keep your teeth healthy. So even if flossing does not help your heart, it is true to help your teeth. This is enough of a reason for everyone to floss their teeth every day.（1）From the passage, we know that ________.A.food stuck between your teeth may hurt your teethB.all of the doctors agree that flossing is good for your heartC.doctors39。 judgment about flossing is based on medical researchD.not every doctor thinks flossing helps to keep your teeth healthy（2）The underlined sentence in Paragraph 3 is to ________.A.provide an exampleB.make a parisonC.introduce a new topicD.develop the previous statement（3）Which of the following best states the main idea of the last paragraph?A.It is a fact that flossing can help your heart as well as your teeth.B.There is no good reason to believe that flossing will help your heart.C.Because doctors find flossing won39。t help your heart, it is useless to floss.D.Even if flossing is only good for your teeth, you should still do it every day.（4）Which is the best title for the passage?A.Flossing by CoincidenceB.How to Keep Your Teeth HealthyC.Flossing Habits and Healthy HeartsD.Why Doctors Disagree About Flossing【答案】 （1）A（2）D（3）D（4）C 【解析】【分析】本文提到經(jīng)過研究，剔牙與保持心臟之間沒有必然的聯(lián)系，但剔牙能保護(hù)牙齒的健康是可以肯定的。( 1 )推理判斷題。根據(jù)第一段提到It is bad to have food stuck between your teeth for long periods of time. This is because food attracts germs(細(xì)菌), germs produce acid, and acid hurts your teeth and gums.(長(zhǎng)時(shí)間讓食物停留在牙齒是有害處的，這是因?yàn)槭澄锬芪?xì)菌，細(xì)菌會(huì)產(chǎn)生酸，腐蝕你的牙齒)，故選A項(xiàng)。( 2 )句意猜測(cè)題。Not every doctor agrees about these ideas不是每個(gè)醫(yī)生都對(duì)這些問題持相同的態(tài)度，Some doctors think that the link between good flossing habits and good heart health is only a , some doctors think that people who have bad flossing habits just happen to also have heart problems一些醫(yī)生認(rèn)為有剔牙習(xí)慣的碰巧有心臟問題，故是發(fā)展以前的觀點(diǎn)，因此選D項(xiàng)。( 3 ) 段落大意題。根據(jù)最后一段提到剔牙能保持你的心臟健康這一理論可能并不正確的，但醫(yī)生同意剔牙能保證牙齒的健康，因此即使剔牙不能有助于你的心臟，肯定能保護(hù)你牙齒，這就是每天剔牙的重要原因，故選D項(xiàng)。( 4 )主旨標(biāo)題題。本文提到經(jīng)過研究，剔牙與保持心臟之間沒有必然的聯(lián)系，但剔牙能保護(hù)牙齒的健康是可以肯定的，故選C項(xiàng)。5．閱讀理解 Should we allow modern buildings to be built next to older buildings in a historic area of a city? In order to answer this question, we must first examine whether people really want to preserve the historic feel of an area. Not all historical buildings are attractive. However, there may be other reasons—for example, economic reasons—why they should be preserved. So, let us assume that historical buildings are both attractive and important to the majority of people. What should we do then if a new building is needed? In my view, new architectural styles can exist perfectly well alongside an older style. Indeed, there are many examples in my own hometown of Tours where modern designs have been placed very successfully next to old buildings. As long as the building in question is pleasing and does not dominate(影響) its surroundings too much, it often improves the attractiveness of the area. It is true that there are examples of new buildings which have spoilt(破壞) the area they are in, but the same can be said of some old bui