The situation is serious．Something must be done it's too late．( )A．afterB．beforeC．whenD．since 题目和参考答案——青夏教育精英家教网—

题目内容

11．The situation is serious．Something must be done ________ it's too late．（　　）

A．

after

B．

before

C．

when

D．

since

分析形势很严重．必须要做些什么，否则就来不及了．

解答答案是B．本题考查时间状语从句的引导词；before在…之前；趁还没有；根据句意，"在太迟之前"采取措施，故选案B．

点评要在理解引导时间状语从句的各引导词的基本含义的基础上积累相关的特殊用法，最后结合语境做出符合逻辑的判断．

练习册系列答案

2．I was living a life in my screen and hardly noticed what（41）was（be）around me．I was always checking the time and thinking of future（42）plans（plan）．My thought was："Who's going to text me now？What will I do next？"My bedtime routine was usually centered （43）on one thing：my phone．（44）Before I went to sleep，I browsed through news websites and checked my emails．When I woke up in the middle of the night．I did the same thing．The problem with this was that I felt anxious every night．
So when my friends invited me（45）to go （go） for a long weekend camping without the cell service，I thought this was （46）exactly（exact）what I needed．Here's how（47）keeping （keep）away from my phone for 48hours changed me and my way of life．
Without my phone，I （48）fell （fall）asleep listening to the songs of frogs and crickets．In the morning，I woke up energetically．Sitting by the river，riding a bike，or singing the old songs，I（49）truly （true）enjoyed what I was doing．
I felt free without my phone at weekend camp，（50）whichchanged me completely．I listened to what my body wanted instead of what my phone was telling me to do．

19．Researchers are placing robotic dogs in the homes of lonely old people to determine whether they can improve the quality of life for old people．Alan Beck，an expert in human-animal relationship，and Nancy Edwards，a professor of nursing，are leading the animal-assisted study concerning the influence of robotic dogs on old people's depression，physical activity，and life satisfaction．"No one will argue that an older person is better off being more active，challenged，or stimulated（刺激）．"Edwards points out．"The problem is how we promote（促进） that，especially for those without friends or help．A robotic dog could be a solution．"
In the study，the robot，called AIBO，is placed for six weeks in the houses of some old people who live alone．Before placing AIBO in the home，researchers will collect baseline data for six weeks．These old people will keep a diary to note their feelings and activity before and after AIBO．Then，the researchers will review the data to determine if it has inspired any changes in the life of its owner．
"I talk to him all the time，and he responds to my voice，"says a seventy-year-old lady，"When I'm watching TV，he'll stay in my arms until he wants down．He has a mind of his own．"
The AIBOs respond to certain orders．The researchers say they have some advantages over live dogs，especially for old people．Often the elderly are disabled and cannot care for an animal by walking it or playing with it．A robotic dog removes exercise and feeding concerns．
"At the beginning，it was believed that no one would relate to the robotic dog，because it was metal and not furry．"Beck says．"But it's amazing how quickly we have given up that belief．"
"Hopefully，down the road，these robotic pets could become a more-valuable health helper．They will record their masters'blood pressure，oxygen levels or heart rhythms．AIBOs may even one day have games that can help stimulate older people's minds．"
29．The purpose of Beck and Edwards'study is toB．
A．understand why old people depressed
B．improve the quality of life for old people
C．find the causes of old people's loneliness
D．make sure of the effects of old people's loneliness
30．In the research，the old people are asked toC．
A．note the activities of AIBOs
B．keep AIBOs at home for 12weeks
C．record their feelings and activity
D．analyze the collected information
31．What is the advantage of AIBO over live dogs？A
A．It is easier to keep at home．
B．It can help the disabled people．
C．It responds to all the human orders．
D．It can watch TV with its owner．
32．The author seems to suggest that the future robotic dogs mayB．
A．cure certain diseases
B．keep old people active
C．change people's beliefs
D．look more like real dogs．

6．According to the library rules，no one _____ take any magazine out of the reading room．（　　）

16．The world is an interesting place．Different people like different things．Some people like loud music．Other people don't．（26）A．
Many people like sports，but they don't all like the same sports．In some countries，cricket is a very popular sport．In other countries，it is not popular at all．No one plays it or watches it on TV．However，most people like soccer．The World Cup is very popular．（27）C．
Different people like different foods．Some people do not like meat．（28）E．Some people don't like potatoes or bread．They prefer rice．
（29）B．Most people have their favorite colors．Some people like bright colors．Others prefer pale colors．
Many people like travelling．Different people like different places．Some people like to go to the country．They like the fresh air．Some people like to go to the cities，because they like shopping．（30）G．．

A．They like soft music．
B．Not everyone likes the same color．
C．Millions of people watch the games on the TV．
D．Different people like different kinds of pets．
E．They eat fruit and vegetables most of the time．
F．So they don't raise pigs in their countries．
G．Some other people enjoy beautiful places like the mountains or beaches．

3．The period of high school is difficult for many students．It's an awkward（棘手的） stage for them．Some students are especially bad-tempered（易躁的）and even depressed（沮丧的） at this time．（36）E Luckily，it's a short period of time to survive and is over quickly．The following tips may help．
（37）BHigh school usually offers more classes and options for classes．Take classes that spark an interest．Get involved in clubs that relate to interests．
Find friends with similar interests．It's not necessary to worry about popularity．The best way to ensure happiness is to find friends who like the same things and are fun to be around．（38）G
Study hard．High school is a building block for college．（39）F Make sure to understand concepts well，so as not to have problems in subjects later．Ask teachers for help if something seems too hard．
Ignore others who are negative．Other students who bully（欺侮）or make fun of people aren't confident about themselves．Tell parents or teachers if someone is bullying you．
Remember，it doesn't last forever．Soon enough，college will come around，and things change when students get to university．（40）D

A．Don't lose heart
B．Focus on learning
C．Learn to deal with the stress
D．Three years will be over quickly
E．High school is an unhappy experience for some
F．Most learned in high school will be used in the next level
G．Having great friends makes high school less something to survive and a funexperience．

20．听第8段材料，回答第10至12题．
10．What's the relationship between the two speakers？
A．Classmates．B．Roommates．C．Workmates．
11．Where is the table？
A．It's next to the cups．B．It's in front of the sofa．C．It's behind the computer．
12．What will the woman do next？
A．Arrange her new office．
B．Buy some new furniture．
C．Move into the new office．

1．听第10段材料，回答第17至20题．
17．How many lab sessions will the students have every week？
A．One．B．Two．C．Three．
18．What are the students allowed to wear in the lab？
A．Long scarves．B．Loose clothes．C．Tennis shoes．
19．Why should the students avoid mixing liquid with paper？
A．It may cause a fire．B．It may create waste．C．It may produce pollution．
20．What does the speaker mainly talk about？
A．Grades the student will receive．
B．Rules the students should follow．
C．Experiments the students will do．

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