Good morning, boys and girls. Here is____school news on TV. An international group is visiting our school this____. There are____teachers and two students in the group. Look!____is Mr White and he is from the UK. The woman near____is Miss Green. She is from France. The____man talking with our students is Mr Brown and he____from Canada. The beautiful girl is from Japan.____name is Judy. Look____that boy. He looks shy. Is he a Japanese, too?____, he is from Chinatown in New York. He is an overseas Chinese!

下列叙述正确的有（　　）

①硝化细菌、霉菌、颤藻的细胞都含有核糖体、DNA和RNA；

②DNA分子结构的基本骨架决定蛋白质的空间结构；

③溶酶体能将大分子物质水解但不能将其彻底氧化分解；

④叶片黄化，叶绿体对红光的吸收增多；

⑤酶通过为反应物供能和降低活化能来提高化学反应速率；

⑥真核细胞的核膜上有核孔，DNA等大分子物质可以通过核孔进入细胞质；

⑦细胞在分化过程中细胞膜上的蛋白质会发生改变．

下图中a为等温线，b为锋线(锋面与地面交线)，虚线范围内为雨区且b向偏北方向移动，读图回答小题。

漫画“节水曲”反映了（　　）