练习册

  • 练习册
  • 试题
    精英家教网 > 高中英语 > 题目详情
    20．观察；遵守observe（vt．）

    分析 observe  （vt．）观察；遵守

    解答 答案：observe  （vt．）观察；遵守
    如：One must observe the rules．我们（任何人）必须遵守规则．
    Have you observed any changes lately？最近你注意到什么变化没有？

    点评 对于单词短语的识记，要从词义着手，理解词性和常见用法或搭配，并能在语境中灵活运用．

    练习册系列答案
    年级 高中课程 年级 初中课程
    高一 高一免费课程推荐！ 初一 初一免费课程推荐！
    高二 高二免费课程推荐！ 初二 初二免费课程推荐！
    高三 高三免费课程推荐！ 初三 初三免费课程推荐！
    相关习题

    科目：高中英语 来源： 题型：阅读理解

    4．A new study suggests that washing dishes by hand is healthier than using a dishwasher．
    Nobody likes doing the dishes，but it turns out that doing this task might pay off in an unexpected way．According to a new study published in the Journal of Pediatrics，washing dishes by hand instead of using a dishwasher might prevent the development of allergies （过敏）．
    Researchers in Sweden surveyed the parents of 1，029 children aged 7and 8．They discovered that children whose families hand-washed the dishes instead of using a machine were less likely to have allergies．
    Earlier research has shown that dishes washed by machine are cleaner than those washed by hand．So why would kids who eat with slightly dirtier plates be better when it comes to preventing allergies？One explanation is based on a theory known as the"hygiene hypothesis，"which says the reason why kids develop allergies is that their environment is actually too clean．Your immune system keeps you healthy by fighting germs like viruses and bacteria．But when you have allergies，it overreacts and tries to fight ordinary things like pollen（花粉）or certain foods．
    Being exposed to germs，especially early in life is good training for the immune system，says the lead author of the study，Dr．Bill Hesselmar of Queen Silvia Hospital in Sweden．"You stimulate the immune system in various ways and it becomes tolerant．"
    This study shows that while using the dishwasher might be easier，the old-fashioned method of cleaning up could be better for your health．

    32．What is the benefit of washing dishes by hand？D
    A．Hand-washed dishes are cleaner than those washed by machine．
    B．Washing dishes by hand is easier than washing by machine
    C．Washing dishes by hand costs less time than washing by machine
    D．Washing dishes by hand might reduce the chance of developing allergies
    33．What does the underlined word"it"in paragraph 4 refer to？C
    A．bacteria
    B．germs
    C．the immune system
    D．allergy
    34．Which of the following statements is true according to the passage？B
    A．Using a dishwasher can prevent us from having allergies．
    B．Exposure to germs early in life may improve kids'immune system．
    C．Our immune system can only fight bacteria and viruses．
    D．Children should use dirty plates when they have meals．
    35．What is the main idea of the passage？C
    A．The clean environment accounts for kids'developing allergies．
    B．Whether parents should wash dishes by hand or use a dishwasher．
    C．Washing dishes by hand may prevent kids from getting allergies．
    D．What"hygiene hypothesis"is and how our immune system works．

    查看答案和解析>>

    科目：高中英语 来源： 题型：填空题

    5．I've lived in three Asian cities，and they all surprised（61）me（I） on the upside．In the case of China，here's（62）whyI like it．
    It's modern and continues to develop all the time．They have modern（63）cities（city），and excellent transport facilities，including their unmatched high-speed train network．They have excellent hotels，restaurants，and beautiful parks etc．
    There's a feeling of safety and（64）freedom（free） in Chinese cities．There's no need to tell you what to do and you can see from the behavior of the diverse crowd．People just do（65）whatthey want．In most places no policemen（66）are seen（see）．Do you know that police in China don't have firearms？They usually do their job silently and behave reasonably，（67）adding（add） to the security and order．
    The Chinese people are friendly．You will always get help even if you can't speak a Chinese word besides nihao，or they can't speak English．They'll spend time and go out of their way（68）to explain（explain） to you how to get somewhere，or how to buy（69）atrain ticket．They'll（70）patiently（patient） and enthusiastically explain how to get what you need．They'll be positive and practical all the time while helping you．

    查看答案和解析>>

    科目：高中英语 来源： 题型：选择题

    8．____for the doctor's careful treatment，he____till last year．（　　）
    A．If it is not； can't live
    B．Were it not； couldn't live
    C．Had it not been； couldn't have lived
    D．If they were not； couldn't live

    查看答案和解析>>

    科目：高中英语 来源： 题型：选择题

    15．-I think you should phone Jenny and say sorry to her．
    -______．It was her fault．（　　）
    A．No wayB．On the way outC．Keep coolD．Not at all

    查看答案和解析>>

    科目：高中英语 来源： 题型：填空题

    5．直到现在up to now．

    查看答案和解析>>

    科目：高中英语 来源： 题型：阅读理解

    12．Helge and Kari Farsund，who live in Oslo，Norway，have been a couple for 50 years． Mr Farsund worrked as an engineer，while his wife was an intensive-care nurse at one point serving with the Red Cross in Rwanda，helping victims of the violent war in that country．Three years ago，a personal tragedy struck，when Mrs Farsund was found to have developed Alzheimer's（老年痴呆）．'As the condition became worse，Mr Farsund began looking for a system that could help both of them live as normal a life as possible． He came across the healthcare technology company Abilia，which has come up with just such a network．
    At the center\of the system is an iPad-like device． The screen has Skype，which allows carers to regularly check in with patients． It also has a planner for patients or carers to record up-coming events and provides spoken reminders about daily tasks，such as when they need to take medicine．
    Some l，000 people now have the system installed in their homes，and 25 of them，including the Farsunds，are testing the latest version，which combines the screen with wirelessly connected sensors． The motion sensors know if you are in the room or open a door，and send out alarms，for instance，if the stove（电炉） is left on for more than 15 minutes or a per．son opens a door in the middle of the night． The second is a particular issue in Oslo，where sub-zero winters mean some Alzheimer's patients are freezing to death．
    "With．this kind of system，it allows people to ta ke care of themselves，which is the most important thing，"says vice president Oystein Johnsen． For him，any move to improve city life needs to begin with people．"Smart cities are coming and they need to start with individuals in their own home，"he says．"It also saves the govemment money． In Norway it cost￡100，000 per year to have someone in a home，while this system costs 15，000． That is a lot of money to save．"
    25．Which section of BBC news is most likely to．include this passage？B
    A． Health．       
    B． Technology．
    C． Entertainment．
    D． Business．
    26．The case of Helge and Kari Farsund in the first paragraph serves toA．
    A．introduce the main topic
    B． expose a social problem
    C．  show sympathy to the elderly
    D．  arouse medical workers'interest
    27．Which of the following functions can all be performed by the system？D
    ①To warn people of possible dangers．
    ②To help check in with patients．
    ③To offer people some medicine．
    ④To cure people of Alzheimer's．
    ⑤To remind people of daily tasks．
    ⑥To play movies like an iPad．
    A．②③⑤
    B．①④⑥
    C．③④⑤
    D．①②⑤
    28．According to the last paragraph，Oystein Johnsen will approve thatB．
    A．the system should reduce its cost
    B．smart cities should be human-based
    C．mass production is still impossible
    D．individuals are responsible for future．

    查看答案和解析>>

    科目：高中英语 来源： 题型：选择题

    9．_______ difficulties we may come across，we will help one another to overcome them．（　　）
    A．HoweverB．WheneverC．WhateverD．Wherever

    查看答案和解析>>

    科目：高中英语 来源： 题型：选择题

    10．How can the negotiation end up with an agreement _______ both parties involved are unwilling to make a  compromise with each other？（　　）
    A．unlessB．thoughC．whenD．while

    查看答案和解析>>

    同步练习册答案