题目

下图表示下丘脑、垂体和甲状腺之间激素作用的关系（字母表示腺体、“ + ”表示促进、 “-”表示抑制），下列有关叙述错误的是 A . 该图既体现了激素间的分级调节，又体现了激素间的反馈调节 B . 人初到寒冷环境时，a、b、c中的b的激素分泌量先增加 C . 图中c表示甲状腺，其细胞膜上有两种激素的受体蛋白 D . 激素作用于靶细胞后会立即失活，便于维持内环境稳态 听力 第一节　听力理解 每段播放两遍。各段后有几个小题，各段播放前每小题有5秒钟的阅题时间。请根据各段播放内容及相关小题，在5秒钟内从题中所给的A、B、C项中，选出最佳选项。 Questions 1 through 2 are based on the following conversation． 1．Where does the conversation probably take place? A．In a supermarket． B．In an office． C．In a railway station． 2．What do we know about the man? A．He is a manager． B．He is a new comer． C．He is late for work． Questions 3 through 4 are based on the following conversation． 3．Where will the man probably go for a holiday? A．America or China． B．America or Japan． C．Japan or China． 4．Which of the following is right according to the conversation? A．Both of them have a lot of money． B．The woman has a lot of money． C．Neither has a lot of money． Questions 5 through 6 are based on the following conversation． 5．What is the man complaining about? A．The entrance charge for the nightclub is too high． B．He is not allowed into the nightclub free． C．They don’t save tickets for the residents． 6．What does the man finally decide to do? A．To entertain himself． B．To go to the nightclub． C．To go out for a walk． Questions 7 through 9 are based on the following conversation． 7．Why is the man so upset if a B is not a bad grade? A．Because it took him months to finish the project． B．Because the woman didn’t understand him． C．Because Ames got an A with less work． 8．What does the woman suggest the man do first? A．Get his grade changed． B．Speak to the teacher． C．Forget about the whole thing． 9．What does the woman think of the man’s grade? A．It is not a bad grade． B．It is unfair to the man． C．She has no opinion． Questions 10 through 12 are based on the following conversation． 10．When is the man’s flight to Paris? A．At 10∶20 a.m.on May 21st． B．At 8∶30 a.m.on May 21st． C．At 8∶40 p.m.on May 21st． 11．Where does the conversation take place? A．At the booking office． B．At the airport． C．At the travel agency． 12．How much does the man pay for the tickets? A．＄450． B．＄900 C．＄350 Questions 13 through 15 are based on the following conversation． 13．Why is the telephone bill so high? A．Because Jack called Anne in London． B．Because Anne called Jack in London． C．Because the woman called Anne in London． 14．What does the woman want to do? A．Ask Jack to pay for the bill． B．Ask her father to pay for the bill． C．Pay the bill with her father’s cheque． 15．What is the probable relationship between the two speakers? A．Mother and son． B．Husband and wife． C．Teacher and student． 第二节　听取信息 听下面一段对话，请根据题目要求，从所听到的内容中获取必要的信息，填入16～20的空格中。听录音前，你将有10秒钟的阅题时间。录音读两遍，你将有60秒钟的作答时间。 Blanks 16 through 20 are based on the following talk．