单选题By "Ellen Spero isn' t biting her nails just yet" (Line 1, Paragraph 1), the author means ______.

单选题The rest of his life is ______ to the cause of international exchange of visiting scholars.

单选题You oughtn’t to have been there, ______?

单选题He was on a diet, though the food ______ him enormously.

单选题The new director of the television station wants to ______ its programs.

单选题Directions:Forthispart,youareallowed30minutestowriteanessaybasedonthepicturebelow.Youshouldstartyouressaywithabriefdescriptionofthepictureandthendiscusshowtoprotectwildanimals.Youshouldgivesoundargumentstosupportyourviewsandwriteatleast150wordsbutnomorethan200words.

单选题阅读下面短文，请从短文后所给各题的4个选项（A、B、C、D）中选出1个最佳选项，并在答题卡相应位置上将该项涂黑。Fed was a consultant 咨询师 and Guido a wine maker.They started their gelato 意式冰激凌 business with no food indusdivy experience.“We wanted to make th

单选题 A. excessively B. collectively C. positive D. automate E. adoption F. embed G. respective H. pollutants I. degradation J. neutralize K. pervasive L. additive M. baffle N. bind O. available What if clothing was more than just an accessory? The green movement is not new to fashion, and many designers and manufacturers have been actively seeking out ways to ensure their garments have less of an environmental impact. But what if your clothes were actually able to have a 42 impact on the environment? This vision is one shared by the two founders of Catalytic Clothing(触媒服装): Professor Tony Ryan, a scientist from the University of Sheffield, and Professor Helen Storey, a designer and artist from the London College of Fashion. Together they are working on a project that draws on the growing field of nanotechnology(纳米技术) to create a fabric 43 that can break down pollutants in the air. 'In a sense, it's a recycling of an existing technology that exists in toothpaste and sunscreen,' Professor Storey explains. The additive contains nanoparticles of titanium dioxide which act as a catalyst (触媒剂；催化剂). When light hits these particles, they react with oxygen to make what is essentially a peroxide(过氧化物) bleach. This in turn reacts with air 44 such as nitric oxide and breaks them down. While this technology could be used to create an entirely new fabric, Professor Ryan thinks that it has greater potential as an additive. 'It only needs to be on the surface,' he says. 'You don't 45 it in the fibers, and that means that it's really easy to upgrade existing fabrics with the technology. We think the best way to do this is via the laundry, because everyone washes their clothes.' Jeans have been a particular focus of Catalytic Clothing, both because they are widely prevalent as well as that the particles 46 especially well to cotton denim. And while the amount of air pollutants broken down by any one individual wearing catalyzed jeans is minor, ' 47 , we can have a huge impact on the quality of the air and therefore respiratory health,' Storey says. According to Ryan, 4 people wearing catalyzed jeans in a day would 48 the nitric oxide air pollution created by one car. The future might be one in which this pollution-busting fabric additive is so 49 that we no longer give it a second thought, like fluoride(氟化物) in tap water. Though at the moment it's not commercially 50 , Ryan estimates that it could be with in a year or class. Catalytic Clothing is aiming for mass 51 . The day is near when we'll be able to make our clothes work for us in more ways than one.

单选题 Which of the following sentences is INCORRECT?

单选题Manager: ______ Secretary: Someone did call. But I can hardly understand the dialect he used.

单选题His administration's economic policy would focus un ______ inflation and reducing the budget deficit.

单选题______ makes men different from the other animals is that they can think and speak. A. That B. The thing C. All D. What

单选题Given a relatively ______ sentence of 18 years (others were given suspended death sentences), Chen was later released from jail in consideration of age and poor health.

单选题The high living standards of the US cause its present population to ______ 25 percent of the world's oil. A. assume B. consume C. resume D. presume

单选题Judy：Are you free this evening?Jack： ___56___?Judy：Shall we go and see a movie?Jack：I love movies，but ___57___ at the moment.What about going to a concert?Judy：Sure，Id love to， ___请作答此空___?Jack：H

单选题 In Beijing, the best season of the year is probably ______ fall.

单选题How can we get rid of garbage? Do we have enough energy sources to meet our future energy needs? These are two important questions that many people are asking today. Some people think that man might be able to solve both problems at the same time. They suggest using garbage as an energy source, and at the some time it can save the land to hold garbage. For a long time, people buried garbage or dumped(倾倒) it on empty land. Now, empty land is scarce. But more and more garbage is produced each year. However, garbage can be a good fuel to use. The things in garbage do not look like coal, petroleum, or natural gas; but they are chemically similar to these fossil(化石) fuels. As we use up our fossil fuel supplies, we might be able to use garbage as an energy source. Burning garbage is not a new idea. Some cities in Europe and the United States have been burning garbage for years. (78) The heat that is produced by burning garbage is used to boil water. The steam that is produced is used to make electricity or to heat nearby buildings. In Paris, France, some power plants bum almost 2 million metric tons of the cities garbage each year. The amount of energy produced is about the same as would be produced by burning almost a half million barrels of oil. Our fossil fuel supplies are limited. (79) Burning garbage might be one kind of energy source that we can use to help meet our energy needs. This method could also reduce the amount of garbage piling up on the earth.

单选题阅读下列短文，根据短文内容填空．在未给提示词的空白处仅填写1个恰当的单词，在给出提示词的空白处用括号内所给词的正确形式填空．请在答题卡指定区域作答．AWhy do we dream？Scientists aren't completely sure，and they have diverse______11   （idea）．Dreams might be a side effect of memory making．When you sleep，your brain sorts through everything_____12   happened during the day，trying to link new experiences to old memories. As it  13______（connect） things，your brain tums them into a story，and you get a dream．BSam is an in-real-life streamer（播主），and he live streams himself just going about his day．While riding his bike home______14   a cold night，he came across a sad-looking elderly woman wandering the streets by herself．The poor woman wasn't able to give him any information about______15   she lived．Sam walked her to a nearby convenience store so that she could_______16  （safe） wait for the police to take her home．CThere_______17  （be） a dramatic rise in the number of extreme weather events over the past 20 years，  18________（cause） largely by rising global temperatures，according to a new report from the United Nations．From 2000 to 2019，there were7,348 major natural disasters around the world，  19______（result） in USD2,970 billion in economic loss．Much of this increase can be due to climate change．The findings show a critical need   20______（invest）in disaster prevention.