3. 动物园里孔雀和鸽子共有42只，其中鸽子有x只，孔雀比鸽子多8只。计算鸽子的只数，下面方程正确的是（）

A.$x+8=42$
B.$x+x-8=42$
C.$x+x+8=42$

3.C

三、解决问题。
小刚和爸爸、妈妈去青岛海洋大世界游玩，单程火车票价每人28.5元，儿童半价，他们一家往返的交通费一共多少元？

142.5元

一、给下列句子选择恰当的答语。
()1. Are these yours? A. Yes,please.
()2. What time is it? B. I like cute monkeys.
()3. What do you like? C. Thank you.
()4. Can I help you? D. No, they aren't.
()5. Here you are. E. It's six o'clock.

1.D 2.E 3.B 4.A 5.C

二、Sarah 记录了大家的劳动场景。请你为 Sarah 的记录配图。
1. Look! Mike is planting the potatoes.
2. Vegetables need water. Amy is watering the carrots.
3. Lily is picking the red tomatoes. They're big.
4. Jane is milking the cows. She can get milk.
5. I'm feeding the chickens. It's not hard.
Everyone is tired but happy. Farmers are very important!
A B D E

1.B 2.A 3.D 4.E 5.C