小升初英语作文的开头和结尾有多种表达方式，以下是一些常见的小升初英语作文开头和结尾的示例：

1. 引入话题

• Today we are here to talk about...

• Before we start, I'd like you to meet me.

• Before I start our presentation, let's take a brief look at the agenda.

2. 提出问题

• Recently, the problem of... has aroused people's concern.

• However, others think that... is a better choice.

3. 表达观点

• As far as I am concerned, it is time that we should take measures to solve this problem.

• It is high time that we took action to address this issue.

4. 描述现象

• There are many reasons for this problem. Firstly, ... Secondly, ... Last but not least, ...

• Everything has two sides and the Internet is not an exception； it has both advantages and disadvantages.

1. 总结观点

• In conclusion, we should...

• To sum up, it is essential that we...

2. 提出建议

• I suggest that we...

• It is important that we consider...

3. 展望未来

• I believe that with our efforts, we can...

• Looking ahead, we need to...

4. 呼吁行动

• Let's work together to...

• It is crucial that we take immediate action to...

这些开头和结尾的示例可以帮助学生在小升初英语作文中更好地组织思路，使文章结构更加清晰，表达更加流畅。希望这些信息对你有所帮助。

以下是一些小升初英语作文开头和结尾的例子：

开头：

1. Only in this way can we solve this problem（倒装）只有这种办法才能解决这个问题。
2. If we don’t take measures, the problem won’t be solved如果我们不采取措施，问题将不能被解决。
3. There are many reasons for this problem First, *** Secondly, *** Last but not least, 这一现象存在有很多原因。第一，。第二，。最后但也是最重要的是，。
4. On the one hand, …… On the other hand, ……一方面……另一方面……
5. The best way to solve the problem is that……解决这些麻烦的最好办法是……
6. It has the following advantages它有如下优点。
7. It has more disadvantages than advantages他有很多不足之处。（他的缺点多于优点）

结尾：

1. We should try our best to overcome the difficulties我们应该尽最大努力去克服困难。
2. I prefer to read, rather than watch TV与看你电视相比我更喜欢阅读。
3. As a student, I am strongly in favour of the decision作为一个学生，我非常赞成这个观点。
4. For example, some parents think that many students become addicted to the Internet例如，一些家长认为学生沉迷于网络。
5. Nowadays, the Internet has been playing an important role in our everyday life There are two sides of opinion about it Some students say … is their favorite They think that …（理由一）What’s more, …（理由二）Moreover, …（理由三）
6. However, others think that … is a better choice There are three reasons（然而，其余的人认为做某事是一种较好的选择，有三个方面的理由）Firstly, …（第一）Secondly, （第二）Last but not least, …（最后也是最重要的是）
7. As far as I am concerned that can’t live without the Internet The reason why is that …（……的原因是……）
8. Nowadays, the Internet has been playing an important role in our everyday life There are many advantages in it Firstly, …（第一）Secondly, （第二）Last but not least, …（最后也是最重要的是）
9. However, everything has two sides and the Internet is not an exception, it has both advantage and disadvantage There’re some disadvantages …（之一）What’s more, …（之二）Moreover, …（之三）
10. As far as I am concerned that it has more disadvantages than advantages（依我看，它有更多好处多于坏处）… However, we also try to use it in a right way, not waste a lot of time in it.

以上例子仅供参考，实际写作时应根据具体题目和个人风格进行创作。