(
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距离的变化？
A.
B.
C.
D.
(
C
)2. Which one can be put in "____?"
答案：C
解析：
翻译:
（ ）2. 哪一个可以放进“____？”里？
(
C
)3. Which one is different?
答案：C
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)= $
$\frac{1}{2}$
(2)Judge "$T(\angle ABC)= 1$" is true or false?
false
(3)$\angle 1+\angle 2= $
45
°
(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)
8
答案：
(1)$\frac{1}{2}$
(2)false
(3)45
(4)＞
(5)8
解析：
翻译:
步骤1：$\boldsymbol{\angle 1}$在直角三角形$\boldsymbol{\triangle FDG}$中。
步骤2：定义一个符号$T$，且$\boldsymbol{T(\angle 1)= \frac{FG}{DG}= \frac{1}{3}}$
(1)$\boldsymbol{T(\angle 2)= }$______
(2)判断“$\boldsymbol{T(\angle ABC)= 1}$”是真还是假？______
(3)$\boldsymbol{\angle 1+\angle 2= }$______°
(4)用“$=$”、“$＜$”、“$＞$”填空。
$\boldsymbol{T(\angle FDE)}$ ______ $\boldsymbol{T(\angle 1)+T(\angle 2)}$
(5)我们可以用点$D$、$F$和$E$构成一个等腰三角形。我们能找到多少个点（除$E$外）来构成一个有边$DF$的等腰三角形？（在正方形内部）______
