diff --git a/fillword.js b/fillword.js
new file mode 100644
index 0000000..f33a3bd
--- /dev/null
+++ b/fillword.js
@@ -0,0 +1,43 @@
+let isRead = true;
+let isChoose = true;
+let highlightWords = "";
+
+function getWord() {
+    return window.getSelection ? window.getSelection() : document.selection.createRange().text;
+}
+
+function fillInWord() {
+    let word = getWord();
+    if (isRead) Reader.read(word, inputSlider.value);
+    if (!isChoose) {
+        if(isHighlight){
+             const element = document.getElementById("selected-words3");
+             element.value = element.value + " " + word;
+        }
+        return;
+    }
+    const element = document.getElementById("selected-words");
+    element.value = element.value + " " + word;
+}
+
+document.getElementById("text-content").addEventListener("click", fillInWord, false);
+
+const sliderValue = document.getElementById("rangeValue");
+const inputSlider = document.getElementById("rangeComponent");
+inputSlider.oninput = () => {
+    let value = inputSlider.value;
+    sliderValue.textContent = value + '×';
+};
+
+function onReadClick() {
+    isRead = !isRead;
+}
+
+function onChooseClick() {
+    isChoose = !isChoose;
+}
+
+// 如果网页刷新，停止播放声音
+if (performance.getEntriesByType("navigation")[0].type == "reload") {
+    Reader.stopRead();
+}
\ No newline at end of file