2022高二新课程英语周报第12期答案

第三节One possible version:Paragraph 1One night afier the museum closes, Maria appears atthe gate of the museum. She enters the building quietlyusing the security code that Max shared with her. Whendealing with a beautiful woman, men can be so stupid,she laughs to herself. She sneaks into the jewelry exhibitand destroys the alarms. Then she walks up to the glasscase protecting the Black Diamond and unlocks it with thekey she stole from Max. She laughs, "The Black Diamondis mineParagraph 2As she holds the diamond in her hands, the lights inhe museum go on. Then an alarm sounds and a team ofThey have caught her! As a police officerhandcuffs Maria, the lead police investigator comes into theroom. Her surprise is so strong that she is unable to speakIt is Max. She yells, How could I have been fooled byyou, a simple police detective? "Max puts his badge backin his pocket and says, "You can think about that in pris-on, and by the way, I speak perfect Italian

13.(1)ABD(3分)(2)(6,6)(3分)【解析】(1)选用装置1研究平抛物体的竖式分运动时要保证A,B两球同时开始运动同时落地,这嶸才能证明平抛物体的竖直分运动是自由落体运动A项正确;选用装置2时,要获得稳定的细水柱所显示的平抛轨迹,就要保持喷嘴处的压强不变,所以要求竖直管上端A一定要低于水面B项正确;选用装置3时,要获得钢球的平抛轨迹,每次一定要从斜槽上同一位置由静止释放,才能保证每次钢球的抛出速度相同,C项错误;除上述装置外,用数码照相机拍摄钢球做平抛运动的每秒十几帧至几十的照片,也可以获得平抛运动的轨迹,D项正确(2)观察图象可得在水平方向在曝光周期内,小球匀速运动两个单位长度,所以可求得横坐标x=6,在律在连续相等的时间间隔内位移差值相等,可求得被遮住的点与第三点竖直方向上的距离h=3l,所以纵坐标为y=(1+2+3)l0=6l6,故被挡住点的坐标为(6,6)。

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