问题 问答题 简答题

如何预防杏花霜冻?

答案

参考答案:

(1)建园时要合理选择园址和抗寒晚花品种。

(2)加强肥水管理并注意保护好叶片,防止早期落叶病发生和害叶类虫害的防治,增加树体贮藏营养,提高抗低温能力。

(3)熏烟。注意收听天气预报,当气温有降到-2℃的可能是,准备熏烟预防霜冻。3~4个/666.7m2

(4)春季灌水降低地温。

(5)在树干和主枝上涂白或喷10%石灰水,减少对太阳辐射热的吸收。

阅读理解

I will never forget the lesson about my window. Four years ago, I moved to a house in a large town. One of my new neighbors’ house was only a few feet away from mine. There lived a woman. Through one of my windows, I could see her reading by her window every afternoon.

Several months later, I found I couldn’t see the woman clearly. I thought her window was too dirty. I said to myself, “Why doesn’t she clean her window? It looks terrible!”

One afternoon, I decided to clean my house including(包括) the window. I felt tired after three hours of hard work. So I sat down by the window for a rest. What a surprise! I could see the woman reading there clearly again! By that time, I realized that my own window was too dirty, not hers! I really felt ashamed for myself. I had been watching her through my dirty window in the past days!

The experience is very important for me. So I try to clean the window of my heart before judging(评判) others.

小题1:How long has the writer lived in the house according to the passage?

A. Two years.                B. Three years.          C. Four years.    

小题2:The writer couldn’t see the woman clearly because ______________.

A. the writer’s window was dirty              

B. the woman’s house was too far

C. the woman didn’t open her window

小题3:The underlined word “ashamed” means _________________.

A. 高兴的                    B. 放松的                C. 羞愧的

小题4:According to the passage, the writer has learnt how to __________________.

A. clean the house           B. judge others          C. help neighbors

单项选择题