问题 读图填空题

人体的﹍﹍﹍﹍﹍﹍被称为输送血液的泵;输血的时候,应以输入﹍﹍﹍﹍﹍﹍﹍﹍为原则。

答案

心脏 同型血

题目分析:心脏在跳动时,首先心房收缩,心室舒张,然后心室收缩,心房舒张,接着心房和心室同时舒张,心脏完成一次跳动,心脏就像一台机器的发动机,人体内的血液在心脏和血管中循环流动的动力,就是来自于心脏的跳动;输血以输同型血为原则,例如:正常情况下A型血的人输A型血,B型血的人输B型血,但在紧急情况下,如果实在没有同型血,AB血型的人可以接受任何血型,O型血可以输给任何血型的人,如果异血型者之间输血输得太快太多,输进来的凝集素来不及稀释,也可能引起凝集反应,因此,输血时应该以输入同型血为原则。

点评:此题为基础题,难度一般,解答此题的关键是熟练掌握心脏的结构与功能、同型输血。

阅读理解

In America, when the eighth graders leave the middle school, they are often worried about moving to the high school. It is a hard time for them, but it can be an exciting one as well. To make it easier, students need to get familiar with their school.

Even though they’ve done this already in the middle school, it’s still important to find where their classrooms are. Most schools take students to the high school for a visit at the end of their eighth grade year. And, most schools also have a freshman (新生) speech for parents and students before the first year begins. Sometimes the main office will give away a map of the school. This can help students and parents to find different places in the school.

One way to know your high school more and make new friends is to join a club or play a sport. Schools often offer chances to join different clubs and sports. Fall activities begin in August before the first day of school. If you are not interested in sports, there are clubs for any interest, such as drama, dance, chess, photography, community service, etc. These clubs allow students from different grades. By joining an activity, students can find new friendships, not to mention improving their chances in future college applications (申请). The school office will have a list of activities offered at the school and information on how to join them.

What’s more, to have a great start to a high school year, students can write down some of their worries, and ask for help from teachers and school workers.

小题1:According to the text, most students feel ________ when entering the high school.

A.excited

B.nervous

C.lonely

D.disappointed小题2:Which of the following is TRUE about the school clubs?

A.There are fewer students from higher grades in the school clubs.

B.The school clubs in high school only welcome sports fans.

C.Summer activities begin before school starts.

D.The school office can help new students join school clubs.小题3:When do many schools take students to visit their new high school?

A.Before the eighth grade year starts.

B.Right after the high school year starts.

C.At the beginning of the new term in the high school.

D.At the end of their eighth grade year小题4:The main offices will give away maps of their schools________.

A.only to help students to find different places of the schools

B.only to help parents to find different places of the schools

C.to help students and parents to find different classrooms of the schools

D.to help students and parents to find different places of the schools小题5:What is the purpose of this text?

A.To tell the new students how to learn in high school

B.To introduce new schools.

C.To give the teachers some advice.

D.To give advice to new high school students.

单项选择题