(
B
)1. Every day Xiaoming walks to the bus stop and then takes a bus to school. Which picture shows the changes of the distance(距离变化) away from home?
A.
B.
C.
D.
答案：B
解析：
翻译:
（ ）1. 每天小明步行到公交站，然后乘坐公交车去学校。哪一幅图展示了离家的距离变化？
A.
B.
C.
D.
(
C
)2. Which one can be put in "____?"
答案：C
解析：
翻译:
（ ）2. 哪一个可以填入“____？”中？
(
C
)3. Which one is different?
答案：C
二、观察图片,回答问题。
Step 1: $\angle 1$ is in a right-angled triangle $\triangle FDG$.
Step 2: Define a symbol T, and $T(\angle 1)= \frac{FG}{DG}= \frac{1}{3}$
(1)$T(\angle 2)= $______
(2)Judge "$T(\angle ABC)= 1$" is true or false? ______
(3)$\angle 1+\angle 2= $______°
(4)Fill in the blank with "= ", "＜", "＞".
$T(\angle FDE)$ ______ $T(\angle 1)+T(\angle 2)$
(5)We can form an isosceles(等腰的) triangle using point D, F and E. How many points (except E) can we find to form an isosceles triangle which has a side DF? (inside the square) ______
答案：(1)$\frac{1}{2}$ (2)false (3)45 (4)＞(5)8
