题目内容

19._____ the problem for many years,he announced that we are now facing the biggest environmental problem of our time.(  )
A.Having observedB.Observing
C.To have observedD.Observed

分析 经过多年的研究,他宣称我们正面临着我们时代最严重的环境问题.

解答 答案A
本题考查非谓语动词作状语,主句主语he与动作observe之间存在逻辑上的主谓关系,所以应该使用observe的现在分词形式作状语,又因为状语动作observe先于主句谓语announced发生,故应使用现在分词的完成时即Having observed作状语.

点评 考查非谓语作状语时,一定要分析状语动作与主句主语的逻辑关系,这是确定使用现在分词还是过去分词的关键.

练习册系列答案
相关题目
15.Sunshine Sports Centre
  One of the most modem sports centers in town,the Sunshine Sports Centre is not just a sports club but much more!
Facilities
  With a swimming pool for adults and teens,and a smaller one for children,our centre has something for all the members of the family.Parents can relax while children play in the water.For anybody who is interested in competitive sports,our volleyball,tennis and basketball courts are the ideal place to work off stress.
  Whether you just want to keep in shape,lose some weight or build your strength,there's the gym with its super-modem equipment and three personal trainers to look after you and answer all your questions.They can also give you general advice about healthy eating and dieting.
Lessons
  It doesn't matter if you're five or eighty-five,there's something for you at the Sunshine Sports Centre!We offer personal training in all sports if you want it,but there are also group lessons for all sports if you prefer teamwork.
Kids and teenagers
  Take advantage of our special offer for younger members.For members between five and sixteen years old,there are special lessons in water polo,competitive swimming and diving.There are many classes for all levels of swimmers,with a lifeguard on duty from 9:00 am when the pool opens until it closes at 7:00 pm.
Social events
  Sunshine Sports Centre is not only for sport!You can enjoy a delicious meal at our restaurant or have a milkshake with your friends on the balcony overlooking the swimming pool and the courts.In addition,there are lovely gardens where families or friends can have a picnic!To celebrate a birthday,there is no better place than the Sunshine Sports Centre.
  So,come on Sign up for Sunshine Sports Centre today!

36.In Sunshine Sports CentreA  
A.people can have birthday parties
B.lifeguards are on duty 24 hours a day
C.children are not allowed to swim alone
D.special lessons in diving are offered to adults
37.People can ask personal trainers for advice when theyC  
A.learn to swim
B.sign up
C.build strength
D.play basketball
38.The main purpose of the passage is toB  
A.explain the rules of the sports centre
B.attract people to the sports centre
C.persuade people to play sports
D.show the benefits of sports.
14.Gemma Spofforth has chosen to swim on to the 2012Olympics after a troubled ten months.
The 23-year-old former Portsmouth Northsea swimmer first questioned her future around the time of last October's Commonwealth Games.
More doubts followed when she failed to defeat her world 100meters backstroke title in Shanghai last weekend when she had been suffering from the sickness.
Away from the pool,her father's partner died in March,just three and a half years after Spofforth's mother passed away.
After finishing 13th in the 50meters backstroke yesterday,she said,"Last night,there was a really big decision for me-whether I should give up because this year hasn't been fun,2009was maybe my time.
But I decided it's 100per cent commitment from here on in,get fit and get ready for next year.
It was a huge decision to make overnight.A lot of thought went into it,I didn't get much sleep.I came down this morning,had a relatively good race,got through and realized that this is where I want to be.
Next year is the one and I am only going to do it if I really want to do it,and if I have one inkling (暗示) over the next couple of weeks it's not right for me then I will quit.I talked to my couch Martyn Wilby a couple of times.I talked to him this morning.
He said to me,‘If you come to me and say you're not sure you want to swim then that's it,you're done.You can only do this sport if you are 100percent invested and this year hasn't been 100percent for me.'"
[写作内容]
1.以约30词概括以上短文的主要内容;
2.然后以约120词就"全力以赴,才能成功"这一话题发表你的看法,内容包括:
(1)原文给你的启示;
(2)以自己或他人的事例说明如果我们不全力以赴,是很难取得最后的成功的.
[写作要求]
1.作文中可以使用亲身的经历或虚构的故事,也可以参照阅读材料的内容,但不得直接引用原文中的句子;
2.作文中不能出现真实姓名和学校名称.
[评分标准]
概括准确,语言规范,内容合适,篇章连贯.

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