“螳螂捕蝉，黄雀在后”中描述的现象体现了生物的基本特征是 (     )

根据实际情况填写适合的单位或数值：①一个苹果大约是150____ ；②水的密度是____ g/cm³； ③教室门的高度约为2____ ．

完形填空   
     Today is June 1st.It's 1^.My friends and I like to play sports2Children's Day. We 3 May Day on May 1st.My mum and dad 4 to stay at home on that day. National Day is on 5^.We go to the park on National Day. The Spring Festival is6 January 7February. My family and I eat 8 during that holiday. September 10th is 9.^.My classmates and I like to make cards for our 10 on that day.

阅读短文，判断对（T）错(F)

     I'm Lingling. I have got a new bike. It's a nice bike. I go to school by bike every day. My mother is a teacher. Her school is near our home. So she walks to work. My father is a doctor. He goes to work by car.

下列有关课文的解说不正确的一项是（    ）