单选题What are they talking about?
单选题
单选题{{B}}第二节 短文理解2{{/B}}阅读短文，从各题所给的三个选项中选出最佳答案。
Americans usually eat three meals a
day. Breakfast usually comes before eight o'clock in the morning. They usually
have eggs, some meat, bread, fruit juice and coffee. Lunch, is between twelve
and one o'clock. It is a light meal and working people most take lunch with them
or get it near their workplace. Children in school take sandwiches, fruit, and
cookies with them or eat in school. Supper, the main meal, is between six and
eight in the evening. People cook it carefully. They may have
meat or chicken, turkey or duck. They may all have potatoes or rice, vegetables
or salad. The drink is coffee, tea or milk. Then comes the
dessert.
单选题
单选题—By the way, ______ you come across the word "umbrella"? —Not yet. What does it mean?A. haveB. doC. would
单选题There are less grey wolf in Europe than in the United States.
单选题
单选题How many days a working American has to work within a week?
单选题Whatdidthemanaskthewomantodo?
单选题
单选题根据一项新的对睡眠中的鸭子进行的研究指出，真正半睡的(即一个脑半球警觉，另一个睡眠)的鸟，是能够控制哪一侧大脑保持清醒的。早期研究已经记载了多种禽类半脑睡眠的情况。两个脑半球轮流进入睡眠阶段，其特征是脑波缓慢。那只由睡眠的脑半球控制的眼睛闭着，而由清醒的脑半球控制的那只眼睛警觉地睁着。禽类也能两个脑半球同时休息。对鸟群进行了几十年研究后，研究者预言，在一排末尾睡眠的鸭更易遭受攻击，也格外警觉。可以肯定地说，在末尾的鸭往往小心翼翼地看没有同伴的那一侧。在一群当中靠里面的鸭子不喜欢盯着某个方向。而且，在一排末尾打盹的鸟，比在一群中间的鸭子更经常地采取一侧脑半球睡眠，而非完全休息。把16只鸟排成4排轮流调换其位置，研究者发现外侧的鸟在约32%的打盹时间里是半睡，而在内侧位置的鸟半睡的时间只占12%。研究者说：“我们认为，这是动物同时控制大脑不同区域睡眠和清醒的行为的第一个证据。”
这些研究结果为长期以来的推测提供了最好证据：半脑睡眠是生物在警惕敌人过程中进化而成的。他预言，鸟喜欢在需要监望的一侧睁着一只眼睛的现象可能很普遍。他看到过这种现象，公园里一对紧挨着打盹的鸟是这样，在镜子旁睡觉的单个宠物鸟也是如此。靠镜子一侧的眼睛闭着，好像镜子里的映像是伙伴，而另一只眼睛却睁着。尽管半睡眠可能很有用，但是我们只在禽类和海豚、鲸和海豹这些水生哺乳动物中发现了这种现象。也许保持一半大脑清醒可使睡眠中的动物不时地浮出水面以免溺死。对禽类的研究可能提供对睡眠的独特认识。加利福尼亚大学洛杉矶分校的詹瑞姆·辛格说，他不知道禽类半脑睡眠是否“只是冰山之顶”。他推测，如果我们仔细观察其他动物，就会发现更多例证。
单选题What is the woman's wish?
单选题在本节中，你将听到10个简短话语，请从[A]、[B]、[C]三个选项中选出一个最佳应答，并标在试卷的相应位置。每个话语后有20秒钟的停顿，以便选择答案和阅读下一个问题。每个话语读两遍。
单选题They have visited many places ______last month.
单选题What does the man mean?
单选题After we read the passage, we know that in America ______. [A] there is something different between older people and young people's opinions [B] young people are satisfied with the lives of their parents [C] there is no trouble in families at all
单选题
单选题There are only ______ people in the library today.
单选题--Jack just came to Beijing yesterday evening. Have you met him? --______.
单选题Which box is ______, the red one, the yellow one or the white one?