9．Researchers _______ to study mice from early ages but came across technical difficulties，so they weren't sure they could expect clear results．（　�。�
A．intendedB．were intended
C．had intendedD．had been intended

分析 研究人員原本打算從很早的時候就對老鼠進行研究，但他們遇到了技術(shù)上的困難，所以他們不確定他們是否能得到明確的結(jié)果．

解答 C 考查時態(tài)．had intended 本來打算，打算研究老鼠的動作發(fā)生在動詞came across之前，came用的是過去時，所以intend是過去的過去，故用過去完成時，答案選C．

點評 動詞時態(tài)的考點是近幾年高考試題考查的重中之重．各地高考試題對動詞時態(tài)的考查越來越側(cè)重于語境化、交際化的理解，這加大了試題的難度，沒有明確的時間狀語，這就要求考生對句子的語境進行正確的判斷，從而選出正確的時態(tài)．

練習(xí)冊系列答案
相關(guān)習(xí)題

科目：高中英語 來源： 題型：信息匹配

11．Some people are naturally better than others in working the social scene．There are those that seem to be gifted in putting others at ease and letting the conversation flow naturally．There are the lucky few that draw people to them without any effort．（36）FPut yourself at ease and remember these tips：
Smile!A smile is understood in any culture and any age as a sign of friendship．So go ahead!It will put the other person at ease．You will seem approachable and happy．（37）E
Make eye contact．Good eye contact engages the other person to you．When you are introduced to someone，shake their hands in a firm grip and repeat their names．（38）CMaking eye contact shows you have confidence and shows you are interested in the other person．
（39）AHaving a trusted friend next to you makes it less frightening to walk into a room full of people．It's the same idea behind why girls need to go to the bathroom in groups．There is safety in numbers!But remember that even if you walk in as a pair，it doesn't mean you just stick together the whole time．The point in a social gathering is you make friends with other people．
Go to social settings with a shared interest．For example joining an art class automatically puts you in a setting with other people you already have a common interest in．（40）G
No matter what the setting，there's no need to be shy around other people．Strangers are friends you just don't know yet!

A．Go with friends．
B．Ask the other person questions．
C．That will help you remember their names．
D．This is the worst impression to make in any setting．
E．It will let the other person know that you are safe to talk to．
F．But for most of us，we feel shy and awkward in social settings．
G．You now have something to talk about and work it from there．

查看答案和解析>>

科目：高中英語 來源： 題型：填空題

12．
come across  communicate with  be modelled after  in general   badly off
71．She discovered how chipscommunicate with each other，an her study of their body language helped her work out their social system．
72．Unfortunately his father died，leaving the family evenworse off．
73．In general，studying international customs can certainly help avoid difficulties in today's world of cultural crossroads．
74．Every area of the parkis modelled after life in the days of King Arthur and the Knights of the round table．
75．Icame across an old friend of mine in the park yesterday．

查看答案和解析>>

科目：高中英語 來源： 題型：信息匹配

17．Tips for Shortening Homework Time
Homework can be a long，hardtask for many students．（36）FStaying focused on the task at hand?while avoiding distractions?（干擾）is another struggle that many students face．
Here are some strategies you can try to make homework time shorter and easier．
1．Power down electronics．While students think they?may need their computers for completing their assignments，devices can often be more of a distraction than helpful tools for getting homework done quickly．（37）G
2．Get a little exercise!Before beginning any homework，try having your childdance to music，or even do a few push-ups．（38）DTheywillalsohelp studentsfinishhomework in a more efficient manner．While some students are fine starting their work right after school，others benefit from this type of physical activity before beginning their school work．
3．（39）ASome students might prefer a desk in their room，while others may use a table in an office space or play room．Any of these choices work fine，as long as they are in a quiet area with minimal noise．
4．Arrangebreak timeswisely．（40）CAnd they will reward themselves with a break after each partis complete．For instance，they might start with their first assignment．Once that is complete，they can give themselves a five-minute break for a snack．But make sure the break doesn't extend beyond the limited time．
With thesestrategies，your child will become more efficientand can complete homework much faster．

A．Find a quiet area to work．
B．Look for a desk or a table to use．
C．Students often divide their homework assignments into several parts．
D．These types of physical exercises will help increase alertness and?focus．
E．Doing some physical exercises can contribute to good health．
F．Sometimes the simple task of sitting down and getting started can be a challenge．
G．Encourage your child to power them off，and only use them when necessary．

查看答案和解析>>

科目：高中英語 來源： 題型：填空題

4．Recently，I feel upset for I have a strange neighbor．She lives in a house with （61）dusty（dust） curtains （62）hanging（hang） before dirty windows．I wonder if it is because she has no friend（63）thatshe has developed the habit of setting down a series of facts she has gone through in her diary．
She seldom goes （64）outdoors（outdoor）．However，one day I happened （65）to meet（meet） her when she was walking the dog in the park （66）atdusk．She was much （67）concerned（concern） about my new novel．It was the first time in a year that I （68）had communicated（communicate） with her face to face．We didn't stop talking until the sky was（69）entirely（entire） dark．We had got to go home immediately because a thunder storm was （70）onits way!

查看答案和解析>>

科目：高中英語 來源： 題型：選擇題

14．China plans to digitize the management of its grain industry by 2020 to improve food security，       grain transportation between provinces and the amount of imported grain have been high in recent years．（　�。�
A．as long asB．asC．afterD．while

查看答案和解析>>

科目：高中英語 來源： 題型：填空題

1．California is（1）the third largest state in the USA but has the largest population．It also has the（2）distinction of being the most multicultural state in the USA，（3）having attracted people from all over the world．The customs and languages of the immigrants（ 4）live on in their new home．This diversity of culture is not surprising when you know the history of California．
Cloning has two major uses．Firstly，gardeners use it all the time to produce （5）commercial  quantities of plants．Secondly，it is valuable for research （6）on new species．Cloning plants is straightforward （7）while cloning animals is very complicated．It is a difficult task to （8）undertake．Many attempts to clone mammals failed．But at last the（ 9）determination and patience of the scientist（10）paid off in 1996with a breakthrough-the cloning of Dolly the sheep．

查看答案和解析>>

科目：高中英語 來源： 題型：閱讀理解

18．In an effort to discourage people from using plastics，scientists have been hard at work inventing alternative packaging products．
The idea of using seaweed（海草） to make eco-friendly water bottles has been around for a few years．Recently，Ari Jonsson took his invention-a water bottle made from red seaweed-to show off at a festival．The bottles will only hold their shape as long as they are filled．As soon as these bottles are empty they will begin to break down，though they would be perfectly safe to eat．Ari Jonsson's bottles are a step closer to a widely used alternative to the current plastic ones．
The eatable water container is not the only product to add to our image of the future．Narayana Pessapaty has also created eatable spoons．After the success of his spoons，Mr．Pessapaty is ready to expand and introduce forks and chopsticks to his menu．His aim is to largely reduce the amount of plastic waste，which is a huge problem for waste sites all over the world，It is a product that may take up t0 500 years to break down，and recycling companies worldwide are struggling to deal with it．
Aside from the obvious benefits to the environment，this new packaging is also cheap to produce and therefore cheap to buy．Even better is the fact that similar eatable cutlery can be made at home，possibly a science project for children or just fun with friends．Why not experiment and create your own recipes？
 
28．Why do scientists invent alternative packaging products？D
A．To make people's life more convenient．
B．To show off their inventive talents．
C．To change the way we picnic outside．
D．To reduce the amount of plastic waste．
29．What makes Art Jonsson's water bottles eco-friendly？D
A．They can be made at home．
B．They are cheap to produce and buy．
C．They will hold their shape when they are filled．
D．They will break down themselves when empty．
30．What do Ari and Narayana's inventions have in common？B
A．They are convenient to carry．
B．They are safe to eat．
C．They can be used for a short time．
D．They are heavier than plastics．
31．What can be inferred from this passage？A
A．Home-made eatable cutlery is likely to be popular．
B．Eatable cutlery will completely replace plastics in the near future．
C．No recycling companies can break down plastic waste．
D．It's unsafe for individuals to invent eatable cutlery at home．

查看答案和解析>>

科目：高中英語 來源： 題型：填空題

7．When the sisters saw the movie in cinema，they spoke in whispers．

查看答案和解析>>

同步練習(xí)冊答案