为了回答为什么上市公司会送股的问题，我们首先需要理解什么是送股。送股是指上市公司在分红时，将公司已经发行的股票直接赠送给现有股东的行为。这种方式相比于发放现金红利，是一种更为直接的回报方式。那么，为什么上市公司会选择送股呢？

首先，送股可以增加股东的持股数量。当股东收到额外的股票后，他们的持股比例就会提高。这对长期投资者来说是一个好消息，因为他们可以继续分享公司的成长和收益。另外，通过增加持股数量，公司也可以吸引更多的投资者，提高股票的流动性。

Secondly, sending bonus shares can increase the liquidity of company's stock. Since bonus shares are given to existing shareholders freely, these shareholders may have more incentive to buy and sell the company's shares in the stock market. This increased trading activity can enhance the liquidity of the stock, making it easier for shareholders to buy or sell their shares at fair market prices.

其次，送股可以增加股票的流动性。由于送股是免费赠送给现有股东的，这些股东可能更有动力在股市上买卖公司的股票。这种增加的交易活动可以增强股票的流动性，使股东更容易以公平的市场价格买卖股票。

Thirdly, sending bonus shares can be seen as a signal of company's financial health and confidence in its future prospects. When a company offers bonus shares, it indicates that the company has generated sufficient profits to distribute among its shareholders. This can attract more investors and enhance the company's reputation in the market.

第三，送股可以被看作是公司财务状况良好和对未来前景充满信心的一个信号。当公司提供送股时，说明公司已经获得足够的利润分配给股东。这可以吸引更多的投资者，并提升公司在市场上的声誉。

Lastly, sending bonus shares can also have a positive impact on the company's share price. Due to the increase in the number of shares outstanding, the stock price per share may decrease, making the stock more affordable for individual investors. This can potentially attract more buyers and drive up the demand for the company's shares.

最后，送股也可以对公司的股价产生积极影响。由于股本增加，每股股价可能会下降，使得个体投资者更容易购买公司的股票。这可能会吸引更多的买家，并推动对公司股票的需求上升。

In conclusion, sending bonus shares is a strategic decision made by listed companies to benefit their existing shareholders and attract new investors. It can increase shareholders' holdings, enhance stock liquidity, demonstrate the company's financial strength and confidence, and potentially positively impact the company's share price.

总之，送股是上市公司为了回报现有股东和吸引新投资者而做出的战略决策。它可以增加股东的持股数量，增强股票的流动性，展示公司的财务实力和信心，并可能对公司的股价产生积极影响。

Translation:

To answer the question of why listed companies issue bonus shares, we first need to understand what bonus shares are. Bonus shares refer to the act of a listed company giving its existing shareholders additional shares as a form of dividend distribution. This is a more direct way of rewarding shareholders compared to cash dividends. So, why do companies choose to issue bonus shares?

首先，送股可以增加股东的持股数量。

Firstly, sending bonus shares can increase shareholders' holdings.

其次，送股可以增加股票的流动性。

Secondly, sending bonus shares can increase the liquidity of the stock.

第三，送股可以被看作是公司财务状况良好和对未来前景充满信心的一个信号。

Thirdly, sending bonus shares can be seen as a signal of company's financial health and confidence in its future prospects.

最后，送股也可以对公司的股价产生积极影响。

Lastly, sending bonus shares can also have a positive impact on the company's share price.