1、课时作业25First aid.阅读理解Saving the planet one plateful at a time does not mean cutting back on meat, according to new research: the trick may be to switch our diet to insects.The raising of livestock such as cows, pigs and sheep occupies twothirds of the worlds farmland and produces 20% of all the green
2、house gases driving global warming. As a result, the United Nations wants to reduce the amount of meat we eat and the search is on for alternatives.Professor Arnold van Huis says eating insects has advantages. “There is a meat crisis，” he said. “The world population will grow from six billion now to
3、 nine billion by 2050 and we know people are consuming more meat. Twenty years ago the average was 20kg, it is now 50kg, and will be 80kg in 20 years. If we continue like this we will need another Earth.” “Most of the world already eats insects，” he points out. “It is only in the western world that
4、we dont. Psychologically we have a problem with it. I dont know why, as we eat shrimps, which are very comparable.”The advantages of this diet include insects high levels of protein, vitamin and mineral content. Being coldblooded, insects change plant matter into protein extremely efficiently. In ad
5、dition, the health risks are lower. He acknowledges that in_the_west_eating_insects_is_a_hard_sell，“It is very important how you prepare them, you have to do it very nicely, to overcome the yuk factor.”Durst helped set up an insect farming project FAO project in Laos. This involves transferring the
6、skills of the 15,000 household locust farmers in Thailand across the border. “There were some supporters of a bigger dairy industry in Laos to improve a calcium deficiency, ”says Durst.“But this is crazy when most Asians are lactose (乳糖) intolerant.” Locusts and crickets are calciumrich and 90% of p
7、eople in Laos have eaten insects at some point. Durst says the project will be to increase the eating of insects where this is already accepted but has been in decline due to western cultural influence.1According to Van Huis, westerners dont eat insects because _.Athere are fewer nutriments in insec
8、tsBthey cant overcome a mental barrierCinsects arent as delicious as shrimpsDinsects dont have much meat themselves2The underlined part in the passage may mean _.Ainsects that can be eaten dont sell well in eastern countriesBthere are few eating insects in the markets of western countriesCit is diff
9、icult for westerners to accept the idea of eating insectsDselling eating insects in the west is hard to make a lot of money3It can be inferred from what Durst said that _.ALaos is where locusts and cricket are eaten mostBpeople in Laos are good at cooking eating insectsCeating insects in Laos is muc
10、h more popular at presentDmilk isnt suitable for most Asian people to increase calcium4What might be the most suitable title for the passage?AInsects Are the Future of ProteinBInsects Are Rich in CalciumCInsects Are the Target of EatingDInsects Are the Alternative for Food答案与解析这是一篇说明文，说的是环保新理念。联合国粮农
11、组织日前郑重宣布，用昆虫代替牛羊肉可满足全球人口增长带来的食物供给压力，还可减少温室气体排放。1B细节理解题。根据第四段倒数第二句可知，西方人不吃昆虫的原因是有心理障碍。2C句意理解题。从第四段西方人不吃昆虫，所以对他们来说接受吃昆虫的观点是困难的。3D推理判断题。根据最后一段倒数第三句可知，亚洲人不适应乳糖，所以利用牛奶来增加人们所需的钙的想法是不合适的。4A主旨大意题。本文主要功能介绍了随着地球上的人类越来越多，人们吃肉越来越多，会造成地球大气变暖，而假如人们吃昆虫的话，就会解决这一问题，以及吃昆虫的好处和一些研究等，所以A符合主题。.阅读填句A major source of teen
12、stress is school exams, and test anxiety is not uncommon. When you recognize your teen is under stress, how can you help your teen stay calm before an exam?Be involved. You need to be involved in your teens work. _1_ What your teen looks for is your presenceto talk, to cry, or simply to sit with her
13、 quietly. Communicate openly with your teen. Encourage your teen to express her worries and fears, but dont let her focus on those fears.Help her get organized. _2_ Together, you and your teen can work out a timetable in which she can study for what she know will be on the test.Provide a quiet setti
14、ng. Help your teen set up a quiet place to study and protect her privacy. Give her a nutritious diet. It is important for your teen to eat a healthy, balanced diet during exam time to do her best. _3_ If this happens, encourage your teen to eat light meals or sandwiches. A healthy diet, rather than
15、junk food, is best for reducing stress._4_ Persuade your teen to get some sleep and/or do something active when she needs a real break from studying. Making time for relaxation, fun, and exercise is important in reducing stress. Help your teen balance her time so that she will feel comfortable when
16、taking time out from studying to spend time with friends or on rest.Show a positive attitude. _5_ Your panic, anxiety and blame contribute to your teens pressure. Make your teen feel accepted and valued for her efforts. Most importantly, reassure your teen that things will be all right, no matter wh
17、at the results are.AParents attitude will dictate their teens emotions.BExam stress can make some teens lose their appetite.CThey will only make the situation worse.DEncourage your teen to relax.EThe best thing is simply to be there.FHelp your teen think about what she has to study and plan accordin
18、gly.GYour teen may also make negative comments about herself.答案与解析本文是一篇说明文，作者就如何克服考试前的紧张情绪提出了一些建议。1B本空后面这句话的大意：这一点看似简单，但是如果你确信这一点，你就没有那么多担心的理由了。由此可推断出此处选B，表示确保已经为考试作好了准备。2F根据前一句“Get enough sleep the night before the test.”可知，本段与睡眠有关，结合选项可知应选F。如果睡眠充足，你的大脑就会更好地工作。3A本段中的“listen carefully to find out wh
19、at the teacher is saying”和“Make sure you know whats expected of you.”暗示此处选A。A项为本段的主题句。4D根据上一句“不要被某个难题所困”可知此处选D。此处表示“相反，要用最好的方式答题”，这与下面一句“或者跳过那个你不会的题，等答完其他的题后再来处理”相呼应。5G根据语境可知，拿到试卷要先看一遍，如果遇到不清楚的地方，要询问老师。.语法填空Some kids may assume that college is very much like their regimented (严格控制的) high school. But
20、 _1_ (actual) there are lots freedom at college: There are much more latitude (回旋余地，自由) in _2_ (choose) courses to take, _3_ students can focus primarily on subjects that interest them. Their schedule will vary widely, too. Some days they may have no courses until noon. Most courses may only meet th
21、ree times a week. These are interesting details that not every youngster is aware _4_.In _5_ (add), students will meet many, many new friends. Theyll be in a community, _6_ almost everyone is _7_ (rough) the same age. College typically feature scores of clubs, sports, and other activities and thus s
22、tudents arent likely to be bored. Instead of being out in the working world, theyll be among new friends, _8_ (take) many courses that interest them and enjoying a rich _9_ (society) life.Another compelling point is financial. According to the estimated figures, those who have received a college edu
23、cation will make to ones earning power. Obviously a good job today requires _10_ least a college education.答案与解析1actuallyactually 实际上。2choosing介词后跟动名词形式作宾语。3and该空表并列顺承关系，故用 and。4ofbe aware of 知道。5additionin addition 另外。6where先行词为 community，定语从句中缺状语，故用 where 引导。7roughlyroughly 大约。8taking现在分词作伴随状语。9so
24、cial形容词作定语。10atat least 至少。.短文改错Mr. Johnson is a hardworking teacher. Every day, he spends too much time with his work. With little sleep and hardly any break, so he works from morning till night. Hard work have made him very ill. “He has ruined his healthy. We are worried about him.” That is which
25、other teachers say. Yesterday afternoon, I paid visit to Mr. Johnson. I was eager to see him, but outside her room I stopped. I had to calm myself down. Quietly I step into the room. I saw him lying in bed, looking at some of the picture we had taken together. I understood that he missed us just as
26、many as we missed him.答案.书面表达某英文网站发起了论家庭饲养宠物的论坛，请你根据以下要点并结合你的感知，写一篇短文，参与该论坛的讨论。1饲养宠物的流行情况；2饲养宠物的好处与坏处；3你家饲养的宠物的情况；4饲养宠物最值得注意的地方。注意：1词数：100左右；2题目已给出；3可以适当增加细节，以使行文连贯；4文中不能出现考生真实姓名和学校名称。Keeping Pets_范文Keeping PetsNowadays, more and more families choose to spend much money and energy raising pets. Some
27、 pets even enjoy the same status as a real family member. Some people find it fun to raise a pet. They think the animal is friendly and interesting. It can accompany them and make them happy. However, it takes much time and energy to keep a pet. Some animals carry unknown diseases. It can be a dange
28、r to the animal master.As for my family, we prefer a dog than any other animal. We think it is smarter, and it needs less food and space than others.To keep a pet, you must make sure you have much spare time. At the same time, make sure the animal is safe in health and it does not disturb the neighbours.
