摘要: 考查时态.由for the last 5 weeks可知用完成时.因此排除A.C.再由上文“你还没有弄到化学教科书 .可以推测we一直到目前都在想办法.因此用现在完成进行时.for/in the last /past+段时间.常与完成时态连用.而in the past则用过去式.

网址:http://m.1010jiajiao.com/timu_id_4373737[举报]

阅读下面短文并回答问题,然后将答案写到答题卡相应的位置上(请注意问题后的词数要求)。
[1]Global difference in intelligence is a sensitive topic, long filled with a large number of different opinions. But recent data has indeed shown cognitive (认知的) ability to be higher in some countries than in others. What's more, IQ scores have risen as nations develop --- a phenomenon known as the "Flynn effect". Many causes have been put forward for both the intelligence difference and the Flynn effect, including education, income, and even non-agricultural labor. Now, a new study from researchers at the University of New Mexico offers another interesting theory:intelligence may be linked to infectious-disease rates.
[2]The brain, say author Christopher Eppig and his colleagues, is the "most costly organ in the human body". Brainpower consumes almost up to 90 percent of a newborn's energy. It's clear that if something affects energy intake while the brain is growing, the impact could be long and serious. And for vast parts of the globe, the biggest threat to a child's body -- and therefore brain ---is parasitic (由寄生虫引起的) infection. These illnesses threaten brain development __________. They can directly attack live tissue, which the body must then try every means to replace. They can invade the digestive pipe and block nutritional intake. They can rob the body's cells for their own reproduction. And then there's the energy channeled (输送) to the immune system to fight the infection.
[3] Using data on national "disease burdens" (life years lost due to infectious diseases) and average intelligence scores, the authors found they are closely associated. The countries with the lowest average IQ scores have the highest disease burdens without exception. On the contrary, nations with low disease burdens top the IQ list.
[4]If the study holds water, it could be revolutionary for our understanding of the still-confusing variation in national intelligence scores.
【小题1】What is the main idea of the text? (no more than 10 words)
____________________________________________________________________
【小题2】Complete the following statement with proper words. (no more than 4 words)
Those countries that have the___________ are always at the bottom of the IQ list.
【小题3】Fill in the blank in Paragraph 2 with proper words. (no more than 5 words)
                                                                     
【小题4】What can cause intelligence difference? (no more than 8 words)
                                                                     
【小题5】What does the word "they" (Line 3, Paragraph 3) probably refer to? (no more
than 8 words)
                                                                   

查看习题详情和答案>>

阅读下面的短文,然后按照要求写一篇150词左右的英语短文。

【阅读材料】                     A Thirsty World

Three-fourths of the earth’s surface is covered by water, some of which is frozen and most of which is salty. In fact, less than one percent left for all the living things.

Now fresh water is becoming scare, but more and more is needed because of the increasing number of people. Some industries also use amounts of fresh water in the production of things such as steel, paper, and rubber. These factories have polluted water flow into rivers without making it clean. What’s more, people in the city have much dirtied water piped into ditches after cooking every day.

Scientists estimate that the need for fresh water will have doubled by the year 2003. This means that we must find new ways of saving it or producing it. Some nations have worked on the problem and are already sharing their information with others. They are trying to keep their rivers from being polluted. Deep wells are also being dug, and rainwater is being collected in huge artificial lakes. In one way or another, they hope to provide enough water to satisfy the needs of their people. For example, one important way of producing water is to distill(用蒸馏法提取) it from sea water. After the salt has been removed, sea water can be used not only for drinking but also for industry and irrigation. However, the equipment for distillation process is very expensive. Distilled water might be as dear as gold if pollution goes on.

[写作内容]

概括短文的内容要点,该部分的字数大约30;

就”环境污染的原因与控制”这个主题发表你的看法,至少包括以下的内容要点,该部分的字数大约120;

环境污染是由什么原因引起的?简单地举例子说明。

为了解决污染问题,国家政府部门应该做些什么?

为了解决污染问题,公民做些什么?

为了解决污染问题,我们学生应该做些什么?

【写作要求】  可以利用实例或其他论述方法支持你的论点,也可以参照阅读材料的内容,但不得直接引用阅读材料中的句子。

查看习题详情和答案>>

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