E Look and complete（看图，填空完成句子）

E部分
1. ①Don't ride bicycles here!
2. ②Don't walk dogs here!
3. ③Don't litter!
4. ④Don't pick flowers!
5. ⑤Don't climb trees here!

由于您未提供具体的填空句子内容，无法直接给出答案。请您补充题目中的句子部分，以便我按照沪教版五年级下册Unit 1 Signs的知识点（如常见公共标识的英文表达，如"No bikes", "No dogs", "No littering", "No fires", "No ball games"等）进行解答。若您能提供具体句子，我将按照以下思路解析：1. 观察图片中标识的图案（如禁止自行车、禁止遛狗等）。2. 根据Unit 1所学，确定标识对应的英文短语（如"No + 名词/动名词"结构）。3. 将短语填入句子空白处。请您补充题目细节，我会为您完成解答。

F Read and complete（读一读，选词填空完成句子）
can/can't must/mustn't should/shouldn't
① Look at the sign! You play football here.
② We have breakfast in the morning. It is important.
③ The wind is blowing strongly. We fly our kites now.
④ Children play near fires.
⑤ You eat too much sweet food. It is unhealthy.
⑥ She is not feeling well. She go to see the doctor.

①mustn't ②must ③can't ④mustn't ⑤shouldn't ⑥should

①mustn't ②must ③can't ④mustn't ⑤shouldn't ⑥should

翻译:
F 读一读，选词填空完成句子
能/不能 必须/禁止 应该/不应该
① 看这个标志！你______在这里踢足球。
② 我们______在早上吃早餐。这很重要。
③ 风刮得很大。我们现在______放风筝。
④ 孩子们______在火附近玩耍。
⑤ 你______吃太多甜食。这不健康。
⑥ 她感觉不舒服。她______去看医生。