单选题Male and female students are quite different from each other ______ the age at which they begin to develop an intellectual self-discipline.A with regard toB in the light ofC in proportion toD on account of

共用题干
Listening to Birdsong
A male zebra finch chirps away to himself. Suddenly he notices a female bird nearby.He realizes he has an audience and immediately changes his song. Can the female tell the difference in his perfonnance?According to a new study,the female zebra finch knows.And she prefers the special trills he creates when he sings to her. A male zebra finch changes his song when singing to a female in ways that people can barely detect.But the female finch can tell the difference.
Scientists had noticed slight variations in the songs of male zebra finches based on whether they were singing alone or whether there was a female(and potential mate)nearby.With an audience,the males sped up the pace of their songs and controlled the notes they used.
For this study,researchers Sarah C .Woolley and Allison Doupe at the University of California,San Francisco decided to focus attention on the listening females,which have not been well studied in the past.
In the study,Woolley and Doupe set up,a long cage with a sound speaker at each end.One broadcast the sound of a male zebra finch singing to himself,like someone singing in the shower.The other speaker broadcast a male performing for a female audience,as if he was giving a concert.
Female birds were placed between the two speakers.Some of the birds had mates.Others didn't. The females shifted around a bit,and then most of them hopped over to sit beside just one speaker. All the birds that made a clear choice liked songs meant for a female audience,even if they'd never met the male.
Mated females also had a chance to listen to two different performance songs,one from an unknown male,and one from their mate .They spent more time listening to the concert version of their mates' songs.This suggests that after a while,females learn to recognize-and prefer-the songs of their mates.
Scientists then studied the brains of the females.They found certain areas of the brain perked up when the birds listened to the concert songs.These brain areas may be involved in recognizing and evaluating the songs,and storing the memories of them.
This research deals with what's called directed communication,when the communicator,or sender,focuses the message for a specific audience.One example is the way moms speak to their babies. Mothers around the world use the same sort of high-pitched sing-song chatter,and the babies respond best to those sounds.Songbirds are one of the only other species known to learn their communication,in this case their songs.

What did the researchers find in their study of female zebra finches?
A: Female finches liked songs male finches sang for them.
B: Female finches only liked songs male finches sang for their mates.
C: Female finches liked to listen to songs from both speakers.
D: Female finches chose the best male singers as their mates.

资料：Special needs students can not only learn from regular education teachers, but can participate in collaborative learning with mainstream students as well. Collaborative learning allows students to work together in groups to complete lessons and assignments.
A number of educators with inclusion classrooms are realizing the benefits of collaborative learning and special needs students being placed in small group environments with regular education classmates. Collaborative learning allows students to converse with one another and brainstorm together in order to find solutions to problems or to complete an assignment. This type of learning allows students of varying ability levels to lend their individual strengths to the group as a whole, thereby encouraging an appreciation of diverse ideas and approaches to problem solving.
Teachers can choose to implement several different types of collaborative learning strategies, depending on the needs of students and the focus of specific assignments. Examples of small-group collaborative learning methods are:
1） The Think-Pair-Share strategy, which involves each student in the group taking one minute to formulate a response to the teacher's question, then sharing individual findings with a partner. After collaborating in pairs, students can then share input with slightly larger groups or with the entire class.
2） The Simple Jigsaw strategy, which involves four-person teams splitting a teacher-assigned task into equal parts. Each student in the group acts as an "expert" on one section of the assignment and meets with corresponding "experts" in other groups for discussion and task mastering. Students then return to their initial teams to share their knowledge of the task with other members.
3） The Three-Step Interview strategy, through which students initially break into pairs and take turns interviewing one another about an assignment. Each pair of students then combine with another pair in order to enhance the discussion.
4） The Numbered Heads Together strategy, where each team member is assigned a number, then instructed to collaborate on a question. The teacher then calls a number randomly, and the student in each group who has that number acts as spokesperson in answering the question. Each student must be prepared for the possibility of having his or her number chosen.
The benefits of collaborative learning and special needs students having the opportunity to engage in small group tasks can produce positive results in regard to classroom organization and management. Teachers who research tips on collaborative learning and implement the practice with students are likely to have a successful inclusion classroom.

What are the benefits of collarborative learning for special needs students? （ ）

A.It helps special needs students think creatively
B.It helps special needs students from all the attending students
C.It helps special needs students learn varied ability from classmates
D.It helps students work together on solving problems and assignments

共用题干
Listening to Birdsong
A male zebra finch chirps away to himself. Suddenly he notices a female bird nearby.He realizes he has an audience and immediately changes his song. Can the female tell the difference in his perfonnance?According to a new study,the female zebra finch knows.And she prefers the special trills he creates when he sings to her. A male zebra finch changes his song when singing to a female in ways that people can barely detect.But the female finch can tell the difference.
Scientists had noticed slight variations in the songs of male zebra finches based on whether they were singing alone or whether there was a female(and potential mate)nearby.With an audience,the males sped up the pace of their songs and controlled the notes they used.
For this study,researchers Sarah C .Woolley and Allison Doupe at the University of California,San Francisco decided to focus attention on the listening females,which have not been well studied in the past.
In the study,Woolley and Doupe set up,a long cage with a sound speaker at each end.One broadcast the sound of a male zebra finch singing to himself,like someone singing in the shower.The other speaker broadcast a male performing for a female audience,as if he was giving a concert.
Female birds were placed between the two speakers.Some of the birds had mates.Others didn't. The females shifted around a bit,and then most of them hopped over to sit beside just one speaker. All the birds that made a clear choice liked songs meant for a female audience,even if they'd never met the male.
Mated females also had a chance to listen to two different performance songs,one from an unknown male,and one from their mate .They spent more time listening to the concert version of their mates' songs.This suggests that after a while,females learn to recognize-and prefer-the songs of their mates.
Scientists then studied the brains of the females.They found certain areas of the brain perked up when the birds listened to the concert songs.These brain areas may be involved in recognizing and evaluating the songs,and storing the memories of them.
This research deals with what's called directed communication,when the communicator,or sender,focuses the message for a specific audience.One example is the way moms speak to their babies. Mothers around the world use the same sort of high-pitched sing-song chatter,and the babies respond best to those sounds.Songbirds are one of the only other species known to learn their communication,in this case their songs.

What is meant by"concert songs"in the seventh paragraph?
A: Songs sung by zebra finches at a concert.
B: Songs sung by male finches for female finches.
C: Songs sung by female finches for male finches.
D: Songs sung by male finches to many female finches.