题目内容

8.There are still many problems to be solved            we are ready for a long stay on the Moon.(  )
A.onceB.beforeC.afterD.until

分析 在我们准备在月球上进行长时间停留之前还有很多问题待解决.

解答 答案:B
解析:A:一旦;B:在…之前;C:在…之后;D:直到.根据句意"在我们准备在月球上进行长时间停留之前还有很多问题待解决"及所给选项分析可知,本题答案为B选项;其余选项均不符合题意.

点评 本题考查连词的辨析,做此类题目时一定要清楚各个选项的含义及用法,再结合句意及其它要求确定最终答案.

练习册系列答案
相关题目
18.When people use food as a way to deal with feeling instead of satisfying hunger,emotional eating happens.(36)A Have you ever finished a whole bag of chips out of boredom or downed cookie after cookie while preparing for a big test?But when done a lot-especially without realizing it-emotional eating can affect weight,health,and overall well-being.
Not many of us make the connection between eating and our feelings.
(37)EOne of the biggest myths about emotional eating is that it's caused by negative feelings.Yes,people often turn of food when they're stressed out,Lonely,sad,anxious,or bored.But emotional eating can be linked to positive feelings too,like the romance of sharing dessert on Valentine's Day or the celebration of holiday feast.Sometimes commotional eating is tied to major life events,like a death or a divorce.(38)G.
Emotional eating patterns can be learned:A child who is given candy after a big achievement may grow up using candy as a reward for a job well done.(39)B It's not easy to"unlearn"patterns of emotional eating.But it is possible.And it starts with an awareness of what's going on.
We're all emotional eaters to a degree.But for some people emotional eating is the once the pleasure of eating is gone,the feeling that cause it remain.(40)D That's why it helps to know the difference between physical hunger and emotional hunger.
Next time you reach for a snack,wait and think about which type of hunger is driving it.

A.Believe it or not,we've all been there.
B.If a crying boy gets some cookies,he may link cookies with comfort.
C.One study found that people who cat food like pizza become happy afterwards.
D.And you often may feel worse about eating the amount or type of food you like.
E.Understanding what drives emotional eating can help people take steps to change it.
F.Boys seem to prefer hot,homemade comfort meals,while girls go for chocolate and ice cream.
G.More often,though,it's the countless little daily stresses that cause someone to seek comfort in food.
19.One day,I was invited to an important event,and I wanted to wear something special for it.I looked through my suitcase but couldn't find anything to wear.I was lucky to be at the technology conference then,and I had access to 3D printers.So I quickly designed a skirt on my computer,and I loaded the file on the printer.It just printed the pieces overnight.The next morning,I just took all the pieces,assembled them together in my hotel room,and this is actually the skirt that I'm wearing right now.
It wasn't the first time that I had printed clothes.For my senior collection at fashion design school,I decided to try and 3D print an entire fashion collection from my home.The problem was that I hardly knew anything about 3D printing,and I had only nine months to figure out how to print five fashionable looks.I always felt most creative when I worked from home.I loved experimenting with new materials,and I always tried to develop new techniques to make the most unique textiles for my fashion projects.
One summer break,I came here to New York to do practice at a fashion house in Chinatown.We worked on two incredible dresses that were 3D printed.They were amazing.But I had a few problems with them.They were made from hard plastics and that's why they broke easily.The models couldn't sit in them,and they even got hurt from the plastics under their arms.So now the main challenge was to find the right material for printing clothes with.I mean the material you feed the printer with.
The breakthrough came when I was introduced to Filaflex,which is a new kind of printing material.It's strong,yet very flexible.And with it,I was able to print the first garment,a red jacket that had the word"freedom"printed into it.And actually,you can easily download this jacket,and change the word to something else,for example,your name or your sweetheart's name.So I think in the future,materials will be better,and they will look and feel like fabrics we know today,like cotton or silk.

24.What does the writer mean by mentioning the skirt she is wearing nowC
A.It is not easily breakable.
B.It represents the latest style.
C.It came from a 3D printer.
D.It was made by a fashion designer.
25.When did the writer start experimenting with 3D printingC
A.When she attended a conference in New York.
B.When she had just graduated from her college.
C.When she was studying at a fashion design school.
D.When she attended a fashion show nine months ago.
26.What was the problem with the material at New York fashion houseA
A.It was hard and easy to break.
B.It was hard to come by.
C.It was difficult to print.
D.It was extremely expensive.
27.What can we know about FilaflexD
A.It is the latest model of a 3D printer.
B.It gives fashion designers room for imagination.
C.It is a plastic widely used in 3D printing.
D.It marks a breakthrough in printing material.
3.In a study published in the U.S.journal Science,researchers from the Chinese Academy of Agricultural Sciences(CAAS) and the University of Florida identified the chemical combinations and genetic recipe for better tomato flavor(味道).
"In recent years,consumers often complain that the modern tomato is less flavorful than it once was"said co-principal researcher Sanwen Huang."Our results provide a practical road map for breeding tomato varieties with better flavor."
For the study,a 170-person consumer group was created to evaluate 160 tomatoes representing 101 varieties,based on qualities such as"overall liking"and"flavor degree".The results pointed to dozens of chemical compounds of interest,and further research using a statistical model discovered 33 flavor compounds connected with consumer liking,such as glucose(葡萄糖).The reason why modern tomatoes don't taste good anymore is that a total of 13 of these flavor-associated compounds"were significantly reduced in modern varieties,"their paper wrote.Moreover,the researchers found that smaller fruit tended to have greater sugar content,suggesting that"selection for more sizable tomatoes has cost sweetness and flavor".
Based on this knowledge,Huang and Professor Harry Klee of the University of Florida studied the whole genomes of 398 varieties of tomato,identifying about 250 positions of genes on a chromosome(染色体),which controlled tomato flavor.
"We're just fixing what has been damaged over the last half century to push them back to where they were a century ago,"said Klee in a statement."We can make the supermarket tomato taste noticeably better."Klee said new tomato varieties with better flavor could be ready in three to four years.In addition,"the genes and pathways identified here in the tomato almost certainly point to pathways worth researching for improvement of flavor quality in other fruit crops,"they wrote.

13.According to the text,the studyD.
A.was carried out just through a survey
B.was conducted by Chinese researchers themselves
C.was completely focused on the genes of different tomatoes
D.was done with the background of declining flavor of tomatoes
14.The researchers have found thatB in the study.
A.bigger tomatoes are much sweeter
B.some genetic positions affect the taste of tomatoes
C.some chemical compounds make tomatoes less tasty
D.a total of 13flavor-associated compounds make tomatoes appealing in taste
15.What is the influence of the study according to the text?A
A.The study lays the foundation for further researches to improve other fruit crops'flavor.
B.The study makes it possible for us to have noticeably more tasty tomatoes next year.
C.The study provides a road for where to plant tomatoes with better flavor.
D.The study has fixed all the genes of existing tomatoes.
4.There are many things you can do to keep friendship strong forever.
Trust is very important in keeping any relationship strong and long lasting.If you trust the person whom you have a good relationship with and he or she also trust you in the same way,then you two have a good relationship.
You can remember important date of your friends such as their birthdays.Wish your friends or give gifts to them on these special days.Many people say that money is the most important thing to consider,but remember friendship is not about money.You can find something small and inexpensive for their gifts or send online cards.
Help the friends.A friend should also always help others even when it is not very convenient.So have a helping hand ready at all times.
Sometimes distance makes relationships even closer.So,if you are far from your friends,there are many ways you can remain in contact(联系).You can use such modern technology as email,chat programs,and you can also write a blog and share your daily life activities with your distant friends.
    If there is anything that makes you happy,share it with your friends.Listen to their thoughts as well.If they have achieved something noticeable,congratulate them and celebrate with them.
I have seen good friendships and when there is unhealthy competition between two friends.Though this may not happen very often,it is better to keep this idea in mind since it may happen to you.
As far as I have seen and experienced,it will be better not to either lend to or borrow money from your good friend.Of course,we have to do this with friends.But,attention should be paid.Otherwise it may end the friendship.
How to Keep Your Friendship (71)strong forever
(72)tips/suggestions/adviceDetails
TrustDon't doubt your good friend so that he or she will treat you(73)the same way.
 
Remember important dates
•Give your friends your (74)wishes,gifts or send online greetings to your friends on their birthdays.
•Don't connect friendship with money.
•Try to send good friends (75)small and inexpensivegifts.
(76)Help the friendsBe ready to give a hand to your friends as much as possible.
Remain in touchUse modern technology to contact your(77)distantfriends.
 
Share feelings
•Share the happiness with your friends.
•Listen to your friends.
•(78)Congratulateyour friends on their achievements and celebrate with them.
Avoid(避免) unhealthy (79)unhealthy competitionDon't try to compete with each other in an unhealthy way.
Avoid money exchangeDon't lend to or borrow any money from your good friend,otherwise it may (80)end/harmthe friendship.
8.When asked about happiness,we usually think of something extraordinary,an absolute delight,which seems to get rarer the older we get.
For kids,happiness has a magical quality.Their delight at winning a race or getting a new bike is unreserved.
In the teenage years,the concept of happiness changes.Suddenly it's conditional on such things as excitement,love and popularity.I can still recall the excitement of being invited to dance with the most attractive boy at the school party.
In adulthood the things that bring deep joy-love,marriage,birth-also bring responsibility and the risk of loss.For adults,happiness is complicated.
My definition for happiness is"the capacity for enjoyment".The more we can enjoy what we have,the happier we are.It's easy to overlook the pleasure we get from the company of friends,the freedom to live where we please,and even good health.
I experienced my little moments of pleasure yesterday.First I was overjoyed when I shut the last lunch-box and had the house to myself.Then I spent an uninterrupted morning writing,which I love.When the kids and my husband came home,I enjoyed their noise after the quiet of the day.
Psychologists tell us that to be happy we need a mix of enjoyable leisure time and satisfying work.I don't think that my grandmother,who raised 14children,had much of either.She did have a network of close friends and family,and maybe this is what satisfied her.
We,however,with so many choices and such pressure to succeed in every area,have turned happiness into one more thing we've got to have.We're so self-conscious about our"right"to it that it's making us miserable.So we chase it and equal it with wealth and success,without noticing that the people who have those things aren't necessarily happier
Happiness isn't about what happens to us-it's about how we see what happens to us.It's the skillful way of finding a positive for every negative.It's not wishing for what we don't have,but enjoying what we do possess.
63.As people grow older,theyB.
A.associate their happiness less with others
B.feel it harder to experience happiness
C.will take fewer risks in pursuing happiness
D.tend to believe responsibility means happiness
64.What can we learn about the author from Paragraph 5and 6?D
A.She cares little about her own health.
B.She enjoys the freedom of traveling.
C.She prefers getting pleasure from housework.
D.She is easily pleased by things in daily life.
65.People who equal happiness with wealth and successC.
A.consider pressure something blocking their way   
B.are at a loss to make correct choices
C.stress the right to happiness too much           
D.are more likely to be happy
66.What can be concluded from the passage?A
A.Happy is he who is content.
B.Each man is the master of his own fate.
C.Success leads to happiness       
D.Happiness lies between the positive and the negative.
9.E-mail has been widely used since its invention for its convenience,efficiency,and high speed.However,it is wise to remember how easily this wonderful technology can be misused,sometimes unintentionally,but can result in serious consequences.
Now let's look at the case of the Illinois man who left the snow-filled streets of Chicago for a vacation in Florida.His wife was on a business trip and was planning to meet him there the next day.When he reached his hotel,he decided to send his wife a quick E-mail.Unable to find the note with his wife's E-mail address,he did his best to type from his memory.Unfortunately,he missed one letter and his E-mail was directed to an elderly lady whose husband had passed away (去世) only the day before.When the sad widow checked her E-mail,she took one look at the screen,let out a sharp cry,and fell to the floor in a dead
faint (昏迷 ).At the sound,her family rushed into the room and saw this note on the screen:
MY DEAREST WIFE:JUST GOT CHECKED IN.EVERYTHING PREPARED FOR YOUR ARRIVAL TOMORROW.
P.S.SURE IS HOT DOWN HERE
49.Where do you think this text comes from?D
A.It comes from a science report.
B.It comes from a computer screen.
C.It comes from a fiction.
D.It comes from a magazine.
50.What was the weather like in Florida when the story happened?D
A.It was snowy.
B.It was neither too hot nor too cold.
C.It was rainy.
D.It was hot.
51.The underlined word"widow"probably meansC.
A.a woman who has no children
B.a woman who has just been married again
C.a woman whose husband died and she has not remarried
D.a woman whose husband is not at home
52.The old lady was in a dead faint becauseC.
A.she was too excited to hear from her husband
B.she was very ill
C.she thought the E-mail was from her dead husband
D.she was frightened to receive an E-mail from a stranger.

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网