number one out ball (1 番アウトボール)
在英语学习中,学生在学习eye(眼)和 ball后学习eye ball就比较容易,这种现象属于( )。
A.一般迁移
B.负迁移
C.水平迁移
D.垂直迁移
E.正迁移
在英语学习中,学生在学习eye(眼)和 ball后学习eye ball就比较容易,这种现象属于( )。
A.一般迁移
B.负迁移
C.水平迁移
D.垂直迁移
E.正迁移
在英语学习中,学生在学习eye(眼)和 ball后学习eye ball就比较容易,这种现象属于()。
A.一般迁移
B.负迁移
C.水平迁移
D.垂直迁移
E.正迁移
interface Playable {
void play();
}
interface Bounceable {
void play();
}
interface Rollable extends Playable, Bounceable {
Ball ball = new Ball("PingPang");
}
class Ball implements Rollable {
private String name;
public String getName() {
return name;
}
public Ball(String name) {
this.name = name;
}
public void play() {
ball = new Ball("Football");
System.out.println(ball.getName());
}
}
这个错误不容易发现。
错。"interface Rollable extends Playable, Bounceable"没有问题。interface 可继承多个
interfaces,所以这里没错。问题出在interface Rollable 里的"Ball ball = new Ball("PingPang");"。
任何在interface 里声明的interface variable (接口变量,也可称成员变量),默认为public static
final。也就是说"Ball ball = new Ball("PingPang");"实际上是"public static final Ball ball = new
Ball("PingPang");"。在Ball 类的Play()方法中,"ball = new Ball("Football");"改变了ball 的
reference,而这里的ball 来自Rollable interface,Rollable interface 里的ball 是public static final
的,final 的object 是不能被改变reference 的。因此编译器将在"ball = new Ball("Football");"
这里显示有错。
2021-2022学年外研版(三起)英语三年级下册Module3单 元 测 试 卷学校:_姓名:_班级:_考号:_一、选择正确图片/词句1 _ ball ( ) Afoot Bfeet Cbasket2 _ ball ( ) Abase Bfoot Cbasket3 _ ip ( ) Ask Bsg Cck4 swi_ing ( ) Am Bmm Cwm5 _ ike ( ) AI Bm Cb二、判断句子正误6Readandwrite“T”or“F”: I like tea. (_)7Readandwrite“T”or“F”: I like basketball. (_)8Readandwrite“T”or“F”: They are lions. (_)9Readandwrite“T”or“F”: The girl is fat. (_)三、单选题10I like _. ( ) Aswims Bswimming Cswim11He likes riding _ bike. ( ) Ahe Bhim Chis12She doesnt _ skipping. ( ) Alike Blikes Cliking13Amy and Daming _ swimming. ( ) Alike Blikes Cliking14They like football _ basketball. ( ) Abut Band Cor四、连词成句15tennis I like table dont (.)(连词成句)_五、改写句子16I like football.(改为否定句)_17I dont like basketball.(改为肯定句)_六、找出错误部分并改正18Lions is big.(找错误并改正)_七、英译汉:整句19I like morning exercises.(英译汉)_八、阅读判断阅读短文,判断句子正(T)误(F)。This is my friend. He is Mike. He is 12. He likes coffee and milk. He doesnt like cake. He has a white dog. It is cute. He often plays with his dog. He likes it very much. He likes playing basketball and riding his bike. But he doesnt like skipping.20Mike is 13. (_)21Mike likes coffee and milk. (_)22He has a red dog. Its cute. (_)23He likes skipping. (_)24He often plays with his dog. (_)参考答案1A2C3A4B5C6T7T8F9F10B11C12A13A14B15I dont like table tennis.16I dont like football.17I like basketball.18is改为are19我喜欢早操。20F21T22F23F24T
interface Playable {
void play();
}
interface Bounceable {
void play();
}
interface Rollable extends Playable, Bounceable {
Ball ball = new Ball("PingPang");
}
class Ball implements Rollable {
private String name;
public String getName() {
return name;
}
public Ball(String name) {
this.name = name;
}
public void play() {
ball = new Ball("Football");
System.out.println(ball.getName());
}
}
这个错误不容易发现。
错。"interface Rollable extends Playable, Bounceable"没有问题。interface 可继承多个
interfaces,所以这里没错。问题出在interface Rollable 里的"Ball ball = new Ball("PingPang");"。
任何在interface 里声明的interface variable (接口变量,也可称成员变量),默认为public static
final。也就是说"Ball ball = new Ball("PingPang");"实际上是"public static final Ball ball = new
Ball("PingPang");"。在Ball 类的Play()方法中,"ball = new Ball("Football");"改变了ball 的
reference,而这里的ball 来自Rollable interface,Rollable interface 里的ball 是public static final
的,final 的object 是不能被改变reference 的。因此编译器将在"ball = new Ball("Football");"
这里显示有错。
关于克隆影片剪辑实例的语句命令duplicateMovieClip(“ball”, “ball”+2,1),该语句完成的功能是()。
《班主任工作条例》规定,班主任由学校从班级任课教师中选聘,聘期由学校确定,一般应连续()。
Ball valve