There has been a recent trend in the food service industry toward lower fat content and less salt. This trend, which was started by the medical community(医学界) 1.as a method of fighting heart disease, has had some unintended side 2.effects (effect) such as overweight and heart disease—the very thing the medical community was trying to fight.
Fat and salt are very important parts of a diet. They are required 3.to process (process) the food that we eat, to recover from injury and for several other bodily functions. When fat and salt 4.are removed (remove) from food, the food tastes as if it is missing something. As 5.a result, people will eat more food to try to map for that something missing. Even 6.worse (bad), the amount of fast food that people eat goes up. Fast food 7.is (be) full of fat and salt; by 8.eating (eat) more fast food people will get more salt and fat than they need in their diet.
Having enough fat and salt in your meals will reduce the urge to snack(吃点心) between meals and will improve the taste of your food. However, be 9.careful (care) not to go to extremes. Like anything, it is possible to have too much of both, 10.which is not good for the health.
❷ 解析：考查名词复数。这种趋势产生了一些意想不到的副作用。根据空前的“some”及空后的“such as overweight and heart disease”可知，此处指不止一种副作用，故用名词复数形式effects。
❸ 解析：考查非谓语动词。be required to do sth.为固定用法。
❹ 解析：考查时态和语态。本文的主体时态为一般现在时，此处专题四 语法填空
In 1863 the first underground passenger railway in the world opened in London. It ran for just under seven kilometers and allowed people to avoid terrible 1.crowds (crowd) on the roads above as they travelled to and 2.from work. It took three years to complete and was built using an interesting method. This included digging up the road, 3.laying (lay) the track and then building a strong roof over 4.the top. When all those had been done, the road surface was replaced.
Steam engines 5.were used (use) to pull the carriages and it must have been 6.fairly (fair)unpleasant for the passengers, with all the smoke and noise. However, the railway quickly proved to be a great success and within six months, more than 25,000 people were using 7.it every day.
Later, engineers 8.managed (manage) to construct railways in a system of deep tunnels (隧道), which became known to the tube. This development was only possible with the 9.introduction (introduce) of electric－powered engines and lifts. The Central London Railway was one of the most 10.successful (success) of these new lines, and was opened in 1900. It had white－painted tunnels and bright red carriages, and proved extremely popular with the public.
❶ 解析：考查名词复数。因为crowd为可数名词，并且其前没有限定词， 所以此处用其复数形式。
❺ 解析：考查动词时态和语态。因为是介绍1863年的事情，而且steam engines与use之间为被动关系，故用一般过去时的被动语态。故填were used。
❼ 解析：考查代词。根据上文的“the railway quickly”可知，此处用it代替the railway。
○10 解析：考查词性转换。根据语境并结合空前的the most可知专题四 语法填空
She looks like any other schoolgirl, fresh－faced and full of life. Sarah Thomas is looking forward to the challenge of her new A－level course .But unlike her school friends ,16－year－old Sarah is not spending half－term 1.resting (rest). Instead, she is earning ￡6500 a day as 2.a model in New York.
Sarah 3.has been told/was told (tell) that she could be Britain's new supermodel earning a million dollars in the next year. Her father Peter,44, wants her to give up school to model fulltime But Sarah, 4.who has taken part in shows along with top models wants 5.to prove (prove) that she has brains as well as beauty she is determined to carry on with her 6.education (educate)．
She has turned down several 7.invitations (invitation) to star at shows in order to concentrate on her studies. After school she plans to take a year off to model full－time before going to university to get a degree 8.in engineering or architecture.
Sarah says, “My dad thinks I should take the offer now. But at the moment, school 9.comes (come) first. I don't want to get too absorbed in modeling. It is 10.certainly (certain) fun but the lifestyle is a little unreal. I don't want to have nothing else to fall back on when I can't model my more.”
❶ 解析：考查固定搭配。spend time doing sth.是固定搭配，故填resting。
❸ 解析：考查动词时态和语态。此处动词tell与Sarah是被动关系，因为第二段在讲述父亲和Sarah的想法时都是用现在时，因此可以用现在完成时表达过去对现在的影响，故可以填has been told。此外，“被告知”这件事情发生在过去，故也可填was told。
❺ 解析：考查非谓语动词。want to do是固定搭配，故填to prove。
In much of Asia, especially the so－called “rice bowl” cultures of China,