[解析]
(1)A.推理判断题。根据文章第一段中句子When a professor asked about our summer plans,I panicked.I didn't want to appear idle(闲散的)。"Gardening,"I responded immediately.Actually I knew nothing about plants!(当教授问我们的暑假计划时,我慌了。我不想显得无所事事。"园艺。"我立刻回答。其实我对植物一无所知!)可知,作者其实并不懂园艺,只是被教授突然问到,出于紧张,随口说了一个,因此,作者开始园艺只是出于偶然。A.Just by accident.(纯属偶然)正确。故选A.
(2)B.细节理解题。根据文章第一段第一句It was our last class before summer break.(这是我们暑假前的最后一节课。)和第二段第一句A few days later,I bought ajalapeño seedling(青辣椒秧苗)。(几天后,我买了一株墨西哥胡椒苗。)可知,作者是在一个暑假里开始的园艺种植。B.In one of her summer breaks.(在她的一个暑假里)正确。故选B.
(3)D.词义猜测题。根据文章第二段中句子And over the summer,it grew bigger and bigger.I was proud.(整个夏天,它变得越来越大。我很骄傲。)可知,作者种植的辣椒苗长势很好,因此作者很骄傲,但事实上作者根本不懂园艺,由此可推知此处指的是作者骄傲的自夸"或许我终究不是不擅长园艺的人"。D.An inability to do gardening.(无法做园艺)正确。故选D.
(4)C.主旨大意题。根据文章最后一段最后一句I smiled.I had succeeded in my MFA program,and my jalapeño plant had grown right beside me,and I successfully did things I hadn't thought possible.(我笑了笑。我成功地完成了我的艺术硕士课程,我的墨西哥胡椒就生长在我身边,我成功地做了我以前认为不可能的事情。)可知,通过作者的努力,成功做了自己认为不可能的事情,C.Nothing is impossible to a willing mind.(心之所愿,无所不成)正确。A.It's never too old to learn.活到老,学到老;B.Easier said than done.说起来容易做起来难;D.Do not teach fish to swim.不要班门弄斧。均不适合为标题。故选C.