2022-2022英语周报八年级新目标JXG第3期答案

4.B【解析】由题得力=4,设M(x1,y1),N(x2,y2),由抛物线定义可知MN|=x1 x2 4=8,则x1 x2=4,所以线段MN中点的横坐标为1 2=2,故该中点到C的准线的距离为2 2=4.故选B项

第一节短文改错Last Sunday one of my legs was badlyhurt while Iplayed the basketball in a match. Had- been sent to hos-pital, I was informed that I had to stay in bed for onemonth. At that time, I was very worried about myschoolwork However, unexpectedly my classmate Tomhelp me almost every day. He not only told mewhat our teachers had taught in class, A helped me withmy homework. I was deeply og because he keptteaching me until I returned to school. Unde his help, IWithught up with other classmates. From then on,allcame good friends

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