“Predicting species? reaction to climate change is a major challenge in ecology, ”
said the researchers of several U. S. universities. They said plants had been the key object of study because their reaction to climate change could have an effect on food chains and ecosystem services.
The study, published on the Nature website, uses the findings from plant life
cycle studies and experiments across four continents and 1, 634 species. It found that some experiments had underestimated the speed of flowering 8.5 times and leafing by 4 times.
“Across all species, the experiments under-predicted the speed of the advance ---
for both leafing and flowering --- that results from temperature increases, ” the study said.
The design of future experiments may need to be improved to better predict how
plats will react to climate change, it said.
Plants are necessary for life on the Earth. They are the base of the food chain,
using photosynthesis to produce sugar from carbon dioxide and water. They let out oxygen which is needed by nearly every organism on the planet.
Scientists believe the world?s average temperature has risen by about 0.8 ℃
since 1900, and nearly 0.2℃ every ten years since 1979.
So far, efforts to cut emissions of planet-warming greenhouse gases are not seen
as enough to prevent the Earth heating up beyond 2℃ this century --- a point scientists say will bring the danger of a changeable climate in which weather extremes are common, leading to drought, floods, crop failures and rising sea levels. 57. What is the key information the author wants to give in Paragraph 1?
A. Plants? reaction to weather could have damaging effects on ecosystems. B. The increasing speed of flowering is beyond scientists? expectation. C. Climate change leads to the change of food production patterns. D. Food chains have been seriously damaged because of weather.
58. We can learn from the study published on the Nature website that .
A. plants? flowering is 8.5 times faster than leafing B. there are 1, 634 plant species on the four continents
C. scientists should improve the design of the experiments
D. the experiments failed to predict how plants react to climate change
59. Scientists pay special attention to the study of plants because .
A. they can prove the climate change clearly B. they are very important in the food chains C. they play a leading role in reducing global warming D. they are growing and flowering much faster than before
60. What can be inferred from the last two paragraphs about the world?s temperature?
A. It has risen nearly 0.2 ℃ since 1979. B. Its change will lead to weather extremes. C. It is 0.8℃ higher in 1979 than that of 1900. D. It needs to be controlled within 2℃ in this century.
第二节 根据对话内容，从对话后的选项中选出能填入空白处的最佳选项，并在 答题卡上将该项涂黑。选项中有两项多余选项。（共5小题：每小题2分，满分10分）
--- What seems to be the problem? --- 61 .
--- How long have you been like this? --- 61 .
--- Yes. I also feel lightheaded.
--- Can you think of anything you ate Saturday that might have caused it? --- All I can think of is the fish I had. It didn?t taste quite right.
--- 61 Now I?ll give you some medicine. Take it and you should be
feeling better soon.
--- 61
--- I also suggest that you follow a special diet. --- 61
--- You should stick to eating lighter foods. A. What?s that? B. That might be it. C. Thank you, doctor. D. Any other problems? E. I have a running nose. F. Have you seen a doctor? G. I have a terrible stomachache.
第Ⅱ卷（非选择题 共50分）
注意事项：
1. 必须使用0.5毫米黑色墨迹签字笔在答题卡上题目所指是的答案区域内作答。答在试题卷上无效。 2. 第Ⅱ卷共计50分）
第三部分 写作（共两节 满分50分）
第一节 短文改错（共10小题；每小题1.5分，满分15分）
此题要求改正所给短文中的错误。对标有题号的每一行作出判断：如无错误，在该行右边横线上画一个沟（√）；如有错误（每行只有一个错误），则按下列情况改正；
此行多一个词：把多余的词用斜线（／）划掉，在该行右边横线上写出该词。并也用斜线划掉。
此行缺一个词：在缺词处加一个漏字符号（∧），在该行右边横线上写出该加的词。
此行错一个词：在错的词下划一横线，在该行右边横线上写出改正后的词。 注意：原行没有错的不要改 Dear Mom,
Mother?s Day is coming. I?m sorry that I am abroad
66. 67.
and can?t send your flowers, so I?m writing to you.
Mom, I know I have never expressed my thank to you 68.
before. But on today, at this special time, I just want to tell 69. you loudly: I love you, Mom! Thank you so much by not only giving me life, but also teach me how to be a good
70. 71.
person. Thank you for all you had done for me. Mom, though72. I may often say it, I do love you. Nobody can take your part in my heart. Whenever I am, I will always love you.
73. 74.
Hope you good health and much happiness every day! 75.
Your little girl,
Jennifer
第二节 书面表达（满分35分）
假如你是大学一年级新生李华。开学之初，你的英语老师Ms Li希望你了解每位同学的英语学习情况，并征求教学建议。请按以下要点用英语给她写一封信。
1. 对英语学习的认识； 2. 自己目前的英语水平； 3. 自己英语学习存在的主要问题； 4. 对英语教学的两点建议。 注意：
1. 词数100左右；
2. 信的开头和结尾已给出。
Dear Ms Li,
I?m very happy to have you as our English teacher.
Thank you!
Li Hua
参考答案： 1-5 BDDACC
6-10 BDCDB
11-15 AACAC 16-20 DBDBA 31-35 ABCAD 36-40 BCDCD 51-55 DACAB 56-60 CBCBD
21-25 ADCDA 41-45 ACADD 61-65 GDBCA 66. 正确
26-30 BBCAD 46-50 BBACB
67. your→ you 68. thank→thanks 69. 去on
70.by→for 71. teach→teaching 72. had→have 74. Whenever→Wherever
75. Hope→Wish
73. may后加not
One possible version: Dear Ms Li,
I am very happy to have you as our English teacher.
As the world is becoming a global village, English is getting more and
more important, so mastering English means we can see the world through a new window.
My English is just OK and the two main problems in my study are that I
feel it difficult to learn words by heart, and that I often feel nervous when speaking English. I really hope that you can give me good advice on how to memorize new words. Another suggestion is to give us more chances to pracitse speaking. I believe we can make much progress in English with your help.
Thank you!
Li Hua
2012年四川高考英语试题及答案（精校对）
