高中英语人教版选修八Unit 3 Inventors and inventions同步练习 (3)

阅读短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项。

    Human beings are the most intelligent of all animals because we are gifted with the ability to think and reason logically. Scientists and even common people with special intelligence have made a lot of inventions and contributions to modern lifestyle in the past. “Houses” have been the most popular area for discoveries and inventions in the past and even now.

    Many household items have been the result of inventions of people who desired better functioning of the existent products. Every individual has intelligence and if it is used properly for the right purpose it leads to invention of a new tool or device. Many new household inventions are made almost every day and there are specific companies, which particularly keep a record of all these inventions.

    A lot of inventions have been made recently in the household field. These products are patented(专利的) and have trade mark licenses. The patented sliding cinch is a very simple but effective method to prevent shoulder stress and injury for those who work before computers all day long. Vanity PC is a type of computer furniture that specifically hides all the computer wires and keeps a clean and good look. All the outdoor dust, mud and snow can be kept out of the house by installing(安装) the dirt drain(排水管) at the entrance of the door. Another important invention is the automatic toilet night-light, in which a small light starts when the lid of the toilet seat is opened and closes as soon as the lid is closed.

    These are some of the new household inventions invented mostly by common people. Thus, a variety of new household items are invented every day, which helps in a better functioning of household chores and in a more useful manner.

结合语境，根据汉语提示用单词的适当形式填空。

    Sometimes in your life, you may be asked to speak in front of a large group of people．Although it sounds a little scary, even those with stage fright can speak successfully to the group with adequate preparation．

    ⒈Practice your speech before the big day．If possible, practice the speech in front of a friend or family member to get used to saying it to real people．If you feel you must have note cards, limit the amount to about three cards．This will force you to keep your speech concise and help you keep your eyes focused on your audience．

    ⒉Remember why you've been invited to speak．If you're battling fear over speaking to a large group of people, keep your mind on the fact that you were selected for this important role．The speech organizers must have seen something valuable in you or your expertise

    ⒊Remember that fear of public speaking is very common.

Most of the people in the audience would be feeling the same fear and stress that you do in your position．Knowing this may make you feel better．

    ⒋What you say should be tailored to why you're there and who you're speaking to in order to avoid sounding general．If speaking to a charity group, mention the good work certain specific individuals have done for the cause．If speaking at a business conference, briefly state why you want to help these people．

    ⒌Keep eye contact with the crowd．Pick one person in each section and look at him while you're speaking．After each important point in your speech, switch your focus to another section．When you focus only on one person at a time, the size of the crowd isn't as frightening．

A．A good memory is really helpful．

B．Show appreciation to your audience．

C．Mention your audience in your speech．

D．The more you have it memorized, the better．

E．In fact, it's normal to feel nervous or stressed out before a big speech．

F．Separate the crowd into three sections mentally as you get up to speak．

G. The knowledge of other people's respect for you should reduce some of the fear．

    the writer called up her mother in the countryside on the phone，she learned that snakes came near their house and that the snakes seemed (make) home near their house. The writer felt proud and considered a chance for her to distinguish by inventing something would catch snakes but not harm them. She set about (research) the habits of snakes. She decided to cool them so that they could be (easy) caught. However，her first two plans were not successful. As a result，she had to attempt third time，which helped her fulfill her aim successfully. She was delighted that she was determined to send her (invent) to the patent office to get recognition for her successful idea.