What is the experts' conclusion regarding pandas?A. It is urgent to provide an ideal habitat for them to thrive.B. It is very important to preserve their genetic diversity.C. Their chances of finding new mates have a lot to do with their habitat.D. Their environment for survival has been continuously worsening.

This is not what we asked you to do. You cannot get more pay for the _ _ work.A. owingB. deviceC. tiredD. extra

relativelyA. ad.最近B. ad.相对地,比较地C. ad.相比较地D. ad.相反地

Giving presentations is a challenging, but important part of education. A presentation is the key to making your message clear, whether you are in an interview or giving a talk in front of the class. A well-prepared and practiced presentation can improve your confidence dramatically. On presentation day, there are some ways you can take to ensure that you perform well. Practice the presentation. Before presentation, it can be helpful to practice on your own. While you are practicing your presentation, do your best to work on memorizing what you want to say, and when you want to say it. Your presentation will be a lot better if you aren’t constantly looking down at note cards or searching a piece of paper to figure out what you want to say next. Control your nerves. There are a few things you can do before the presentation to help calm your nerves — many of which you can even do right at your desk. Try breathing deeply; silently repeating affirmations (such as “I can do this. I’m going to do a great job”); or using positive visualization (imagine yourself giving your presentation successfully and knocking it out of the park). These strategies can help you settle your nerves and go into your presentation feeling calm and collected. Speak slowly and enunciate clearly. If you have practiced enough, this shouldn’t be difficult; however, some people talk too quickly and too quietly when they get nervous. Try to remind yourself to talk slowly and loudly enough so everyone can hear you. If you’re using an electronic presentation, you can use each new slide as a chance to stop for a few seconds and recognize whether you are speaking slowly and loudly enough for everyone to hear. Engage the audience. Whether you’ve got a one-on-one talk or a speech in front of 400 people, think “story telling”. Sometimes all it takes is a few seconds to connect an audience member with a story, according to Eric English, a communication teacher at the University of Pittsburgh in the US. Try to look around the room and make eye contact with various listeners for a few seconds. If you are able to make eye contact for a few seconds with several different people over the course of your presentation, you will be giving the impression that you are relaxed and confident. Don’t forget to smile!【小题1】If you want to get people’s attention, you should _______. A．prepare note cards while giving presentation B．take a deep breath before your presentation C．make eye contact with different listeners D．consider speaking in front of a trusted friend 【小题2】The expression “knocking it out of the park” probably means “_______”. A．relaxing in the park B．performing quite well C．enjoying the presentation D．knocking the rocks in the park 【小题3】What would be the best title for the passage? A．Presentation is important for education B．Presentation is the key to success C．How to give a better presentation D．How to make the presentation clear

Milk,butter,and cheese are ____ here from the farms.A. importedB. transferredC. transformedD. transported

The number of immigrants to the US isA. declining.B. Another wave of immigrants is hitting the US.C. Immigrants outnumber US-born Americans.D. Immigrants have been contributing to the US.

Directions: You will hear a conversation. After the conversation, there are some recorded questions. Both the conversation and questions will be spoken twice. After each question there will be a pause. During the pause, you should decide on the correct answer from the 4 choices marked A, B, C and D.(1) (单选题)Question 1A.Havea special celebration.B.Call on some friends.C.Goto the Great Wall.D.Have a party.(2) (单选题)Question 2A.Mr. Smith does not like the woman’s idea.B.Mr. Smith thinks Mr. Green is not free this weekend.C.The man refused the invitation.D.The man will have to check if Mr. Green has free time before making a decision.(3) (单选题)Question 3A.Thisafternoon.B.This Friday.C.At7 a.m. this Saturday.D.At9 a.m. this Sunday.

With the coming of big data age, data science is supposed to be starved for, of which the adaption can point a profound change in corporate competitiveness. Companies, both born in the digital era and traditional world are showing off their skills in data science. Therefore, it seems to have been creating a great demand for the experts of this type.Mr. Carlos Guestrin, machine learning professor from University of Washington argues that all software applications will need inbuilt intelligence within five years, making data scientists-people trained to analyze large bodies of information-key workers in this emerging "cognitive" technology economy. There are already critical applications that depend on machine learning, a subfield of data science, led by recommendation programs, fraud detection systems, forecasting tools and applications for predicting customer behavior.Many companies that are born digital-particularly internet companies that have a great number of real-time customer interactions to handle-are all-in when it comes to data science. Pinterest, for instance, maintains more than 100 machine learning models that could be applied to different classes of problems, and it constantly fields requests from managers eager to use this resource to deal with their business problem.The factors weighing on many traditional companies will be the high cost of mounting a serious machine-learning operation. Netflix is estimated to spend 150m a year on a single application and the total bill is probably four times that once all its uses of the technology are taken into account.Another problem for many non-technology companies is talent. Of the computer science experts who use Kaggle, only about 1, 000 have deep learning skills, compared to 100, 000 who can apply other machine learning techniques, says Mr. Goldbloom. He adds that even some big companies of this type are often reluctant to expand their pay scales to hire the top talent in this field.The biggest barrier to adapting to the coming era of "smart" applications, however, is likely to be cultural. Some companies, such as General Electric, have been building their own Silicon Valley presence to attract and develop the digital skills they will need.Despite the obstacles, some may master this difficult transition. But companies that were built, from the beginning, with data science at their center, are likely to represent serious competition.Which one is obstacle for many traditional companies to popularize learning operation?A.Technological problem.B.Expert crisis.C.High cost.D.Customer interactions.What can not be inferred from the passage about the machine learning?A.Machine learning operations are costly in Netflix.B.Machine learning plays an important role in existent applications.C.Machine learning experts are not highly paid in some non-technology companies.D.Machine learning models are not sufficient to solve business problems in Pinterest.What's the author's main purpose in writing this article?A.To point out the problems facing machine learning experts.B.To call on companies to cultivate more experts in data science.C.To tell the readers the present situation of data science.D.To advice non-technology companies to look beyond the advantages they face.Which of the following is the best title for this passage?A.Data science: A forefront force in tech businessB.Corporate competition: An obstacle to the transitionC.Machine learning: A key to smart technologyD.Technique experts: A decisive factor of the coming era.

33.(单选题) rockA. vt. 摩擦B. vi. 划船C. vt. 摇D. vt. 滚动

Being eco-friendly is not a new concept, but it is certainly taken on a greater sense of urgency in the past few years. With the rising cost of fossil fuels, global warming, and all of the other environmental issues that are coming to light , everyone is looking for ways to reduce their carbon footprint and become more "green." Being energy-conscious can be a good way to help the environment. Turn the heat down, and each degree you turn down the heat saves three percent of heating costs, while each degree you raise the temperature of your air conditioner saves three to four percent of cooling costs. Lower the temperature, and in fact by changing the temperature by two degrees all year, you can save about 2,000 pounds of CO₂a year. Air-dry or hang your clothes instead of using the dryer and save 700 pounds of CO₂a year. Besides using more energy, they are actually dangerous and can cause fires. While most people are familiar with these methods for reducing the impact on the environment, one great way is to replace outdated appliances with more energy efficient models. Most manufacturers are now making their products to the "green" initiative. By changing their manufacturing processes, most manufacturers have found ways to take items that traditionally were not thought of as being "green," and reducing their impact on the environment. One less obvious way to lessen the impact is by buying direct. One thing that people don't consider is where they buy their products. Retail stores utilize a huge amount of resources and inevitably have a huge impact on the environment. Buy products online or direct from the manufacturer, and you are eliminating that high overhead and ecological (生态的) impact. So by simply changing the way you look at your daily habits and the products you buy, you can have a positive impact on your overall carbon footprint.1. The phrase "coming to light" most probably means "becoming ________." (Para. 1)A) settledB) known C) urgentD) serious2. What do most manufacturers do to reduce their impact on the environment?A) Advertise their "green" products.B) Develop CO₂ reduction technology.C) Manufacture more energy-efficient products. D) Sell their products directly to the customers.3. What is the less obvious way for people to contribute to the environment?A) Control CO₂ emission efficiently.B) Update household appliances regularly.C) Make full use of the limited amount of resources.D) Buy products online or directly from the manufacturers. 4. Which of the following practices is NOT helpful to the environment?A) Air-dry or hang your clothes after washing.B) Buy the products we need from retail stores. C) Adjust the temperatures of air conditioners in an economical way.D) Replace the outdated appliances with more "green" models.5. This passage mainly discusses how to ________.A) manufacture more "green" productsB) become energy-conscious and eco-friendlyC) turn down the temperature of the air conditionerD) reduce people's impact on the environment in daily life