Question

【题目】 Fill in the blanks with proper words （在短文的空格内填入适当的词，使其内容通顺，每空格限填一词，首字母已给）

You move every day. Every time you sit down, walk, ride a bike, or eat your food, you are moving. You e【1】 move while you are sitting in a chair. What gets you moving, keeps you moving, and helps you to move the way you want to move?

One force that helps you move is gravity. Gravity pulls you toward Earth. Why? Earth is bigger and h【2】 than you are, so you’re pulled by Earth’s gravity. How does that help you? When you take a step, gravity pulls on your foot. That pulling helps you put your foot down. Then, you can move your o【3】 foot. Do you like to play baseball? Gravity makes the baseball fall after it is h【4】. Then, as gravity pulls the ball toward the ground, and can catch the ball.

Friction also helps you move. Friction happens when two o【5】 rub against each other. How does friction help you move? When you walk, friction keeps your feet from slipping. When you hold a pencil, friction helps keep it in your h【6】. and friction makes the brakes on your bike work. too.

Inertia also helps you. Inertia is a sort of rule: it tells us two things; Things that are in movement will remain in movement until something stops them; and things that are at rest will stay at rest unless something moves them. When you ride your bike, it will keep going until you stop it, and when you sit down to read, you will stay where you are until you are r【7】 to move.

Next time you move, think about gravity, friction and inertia. All of them help to get you where you want to go.

① gravity n. 重力 ② friction n. 摩擦力 ③ inertia n. 惯性

Answer 1

【答案】

【1】even

【2】heavier

【3】other

【4】hit

【5】objects

【6】hand

【7】ready

【解析】

文章大意： 有一种力量可以帮助你移动，那就是重力。地球比你大，比你重，所以你被地球的引力所牵引。重力使棒球在被击中后下落。然后，当重力把球拉向地面，就能接住球。摩擦力也能帮助你移动。当两个物体相互摩擦时就会产生摩擦力。当你走路时，摩擦力使你的脚不滑倒。当你拿着铅笔时，摩擦力有助于把它留在手里。惯性是一种规律：它告诉我们两件事：在运动中的事物将保持运动直到有东西阻止它们；在静止中的事物将保持静止，除非有东西移动它们。下次你移动的时候，想想重力，摩擦力和惯性。所有这些都能帮你找到你想去的地方。

【1】句意：当你坐在椅子上的时候你甚至会移动。

根据空后动词move可知，此空应填副词，结合句意和首字母提示可知，故答案为even。

【2】句意：地球比你大，比你重，所以你被地球的引力所牵引。

根据空前bigger and 和空后than 可知，此空应填形容词的比较级，结合句意和首字母提示可知，故答案为heavier。

【3】句意：然后，你可以移动你的另一只脚。

根据空后foot 可知，此空应填形容词，结合句意和首字母提示可知，此空是“另一个”的意思，故答案为other。

【4】句意：重力使棒球在被击中后下落。

根据空前助动词is可知，此空应填动词的过去分词，表示被动语态，结合句意和首字母提示可知，故答案为hit。

【5】句意：当两个物体相互摩擦时就会产生摩擦。

根据空前基数词two 可知，此空应填名词的复数形式，结合句意和首字母提示可知，故答案为objects。

【6】句意：当你拿着铅笔时，摩擦有助于把它留在手里。

根据空前形容词性物主代词your可知，此空应填名词，结合句意和首字母提示可知，故答案为hand。

【7】句意：当你坐下来看书的时候，你会一直呆在原地直到你准备好移动。

根据空前are可知，此空应填形容词作表语，结合句意和首字母提示可知，根据固定用法be ready to do sth. 准备好做某事。可知，故答案为ready。