rapid teaction by plants to sound had never bern reported before.-|||-imnsed the sugar concentration in the nectar lu rise hy about 20% in less than fire minathe dock-|||-chey simply played audio meordingo u buzing bers arwwid eetais finven.These-|||-.lim _(narrow 1)(t)^n-|||-Khait and his team`s purpne in using miemonas in thear study?-|||-A.To collect ultrasonie sounds, B.To help planhs scream loudly,-|||-C.To attruct animals and insects. D.To record the sangs from planh.-|||-29.What would n moth probnbly do when hearing a sound from a plant affected bry the drwoght?-|||-A.It would make a nest there. B.It would tum a deaf ear to it-|||-C.It would avoid laying eggs there. D.It would infarm cther math-|||-30.Why does the author mention Charles Darwin in the Iourth parngraph?-|||-A.To introduce a subject.-|||-C.To provide more details. B.To support a viewpoint-|||-D.To make a camparison.-|||-31.Which of the following indicates the plant3`learning nbility?-|||-A.The time they spend producing nectar.-|||-B.Their quick reaction to audlio recordings.-|||-C.Their reaction to the sound of actual bees.-|||-D.Their method of appealing to approaching bees.-|||-A new study published in the joumal P`sychological Sac shows that young children will wait hearly twice ss-|||-D-|||-long for a rewurd if they are told their leacher will lind out how long they wait.-|||-The classic marshantlow(花糖)test has shaped the wny researchers thiok about the development of self.-|||-contral, which is an important skill,"said Guil Heyman,a professor at the University of California San.Diego.-|||-Our new rescarch suggests that in addition lo measuring self-control, the task may also be measuring another-|||-important skill:awareness of what other people value. In fact, one reason for the predictive power of delay -ol--|||-gratification(满足)tasks may be that the children who wait longer care more about what people around them-|||-value,or are better at figuring it ouL."-|||-For their study,Heyman and her colleagues conducted two experiments with a total af 2733-to 4-year dld-|||-children. The researchers told the children that they could earn a small reward immediately or wait for a bigger-|||-one. Children were assigned to one of three conditians:a"tencher" condition,in which they were tald that their-|||-teacher would find out how long they wait;a"peer" condition, in which they were told that a classmate would find-|||-out how long they wait;or a"standard"condition that bad no special instructions.-|||-Children waited longer in the teacher and peer conditions than in the standand condition,and they waited-|||-about twice as long in the tencher condition as the peer cendition. i-|||-The rescarchers interpret the results to mean that when children decide how long to wait,they make a cost--|||-benefit analysis that takes into accounl the possibility of getting a social reward in the form of a boost to their-|||-reputation. These finding suggest that the desire to impress othery is strong and can motivate human behavio-|||-starting at a very young age.-|||-The rescarchers were surprised by their lindings because the traditional view is thnt 3-and 4-year olds are to-|||-young to care about what other people think of them.-|||-32.Whal was Heyman and her colleagues`discovery mainly based on?-|||-A.Former research findings. B.Interviews.-|||-D.Questionnaires.-|||-C.Experimental data.-|||-33.How did the children behave in a"standard"condition?-|||-A.They showed the least patience. B.They paid the most attention to details.-|||-C.They lost their interest in marshmallow. D.They needed much longer time for self contr-|||-篮5页(共8页).

.