小题1:My uncle always _______________________ on us when he came to our city.

小题2:He didn’t want to go to school by pretending to be __________________ ill.

小题3:The Science Museum is a good place for children __________________ their new ideas.

小题4:Children should __________________ how to respect others in their daily life.

小题5:He went to France the year before last and I haven’t heard from him _______________then.

小题6:He didn’t get any help and had to complete the work _________________.

小题7:The naughty boy is always punished by his mother for his bad_____________.

小题8:Most of the teenagers like eating junk food __________________ healthy food.

小题9:They found out the truth by doing a lot of__________________ experiments.

小题10:This DVD is quite useful. It can help us learn English and enjoy the beautiful sights of many places _______________________.

科学家利用返回式卫星搭载普通甜椒种子，返回地面后再进行选育，培育出果实大、肉厚、口感好、产量高的太空椒。根据上述材料，回答有关问题：(6分)

(1)“南橘北枳”的变异同太空椒的变异相比，“南橘北枳”属于________的变异，其根本原因是未涉及到________的改变。这个事实也说明，生物表现出的性状是________和________共同作用的结果，在不同的生活环境条件下，基因组成相同，性状表现________ 。

(2)如果太空椒与普通甜椒进行杂交，后代全为太空椒，则太空椒属于___________性性状。